/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.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:52:41,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:52:41,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:52:41,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:52:41,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:52:41,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:52:41,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:52:41,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:52:41,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:52:41,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:52:41,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:52:41,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:52:41,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:52:41,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:52:41,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:52:41,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:52:41,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:52:41,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:52:41,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:52:41,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:52:41,336 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:52:41,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:52:41,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:52:41,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:52:41,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:52:41,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 08:52:41,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 08:52:41,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 08:52:41,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 08:52:41,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 08:52:41,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 08:52:41,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 08:52:41,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 08:52:41,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 08:52:41,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 08:52:41,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 08:52:41,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 08:52:41,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 08:52:41,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 08:52:41,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:52:41,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:52:41,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:52:41,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:52:41,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:52:41,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:52:41,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:52:41,362 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:52:41,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:52:41,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:52:41,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:52:41,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:52:41,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:52:41,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:52:41,363 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:52:41,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:52:41,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:52:41,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:52:41,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:52:41,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:52:41,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:52:41,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:52:41,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:52:41,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:52:41,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:52:41,365 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:52:41,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:52:41,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:52:41,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:52:41,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:52:41,563 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:52:41,563 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:52:41,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-04-06 08:52:41,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f53a402/2fa51f01b9c1402e8a84e11b9768d722/FLAGcb000a186 [2022-04-06 08:52:42,114 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:52:42,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-04-06 08:52:42,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f53a402/2fa51f01b9c1402e8a84e11b9768d722/FLAGcb000a186 [2022-04-06 08:52:42,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f53a402/2fa51f01b9c1402e8a84e11b9768d722 [2022-04-06 08:52:42,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:52:42,643 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:52:42,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:52:42,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:52:42,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:52:42,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:52:42" (1/1) ... [2022-04-06 08:52:42,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b3d1ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:42, skipping insertion in model container [2022-04-06 08:52:42,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:52:42" (1/1) ... [2022-04-06 08:52:42,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:52:42,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:52:42,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-04-06 08:52:42,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:52:42,994 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:52:43,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-04-06 08:52:43,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:52:43,129 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:52:43,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43 WrapperNode [2022-04-06 08:52:43,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:52:43,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:52:43,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:52:43,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:52:43,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:52:43,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:52:43,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:52:43,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:52:43,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (1/1) ... [2022-04-06 08:52:43,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:52:43,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:52:43,259 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 08:52:43,267 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 08:52:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:52:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:52:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:52:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 08:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 08:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 08:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 08:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 08:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 08:52:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:52:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:52:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:52:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:52:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 08:52:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 08:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:52:43,442 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:52:43,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:52:44,048 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:52:44,347 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 08:52:44,348 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 08:52:44,357 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:52:44,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:52:44,366 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:52:44,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:52:44 BoogieIcfgContainer [2022-04-06 08:52:44,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:52:44,368 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:52:44,368 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:52:44,369 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:52:44,371 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:52:44" (1/1) ... [2022-04-06 08:52:44,373 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:52:44,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:52:44 BasicIcfg [2022-04-06 08:52:44,421 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:52:44,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:52:44,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:52:44,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:52:44,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:52:42" (1/4) ... [2022-04-06 08:52:44,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7640840f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:52:44, skipping insertion in model container [2022-04-06 08:52:44,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:52:43" (2/4) ... [2022-04-06 08:52:44,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7640840f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:52:44, skipping insertion in model container [2022-04-06 08:52:44,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:52:44" (3/4) ... [2022-04-06 08:52:44,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7640840f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:52:44, skipping insertion in model container [2022-04-06 08:52:44,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:52:44" (4/4) ... [2022-04-06 08:52:44,429 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.cJordan [2022-04-06 08:52:44,433 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:52:44,433 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:52:44,471 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:52:44,476 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 08:52:44,476 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:52:44,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 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 08:52:44,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-06 08:52:44,507 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:52:44,508 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 08:52:44,509 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:52:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:52:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -18257494, now seen corresponding path program 1 times [2022-04-06 08:52:44,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:52:44,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101139754] [2022-04-06 08:52:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:52:44,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:52:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:44,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:52:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:44,912 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 08:52:44,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:52:44,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101139754] [2022-04-06 08:52:44,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101139754] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:52:44,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:52:44,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:52:44,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208555505] [2022-04-06 08:52:44,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:52:44,918 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:52:44,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:52:44,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:52:44,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:52:44,936 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:52:46,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:52:46,649 INFO L93 Difference]: Finished difference Result 299 states and 501 transitions. [2022-04-06 08:52:46,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:52:46,652 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 08:52:46,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:52:46,659 INFO L225 Difference]: With dead ends: 299 [2022-04-06 08:52:46,659 INFO L226 Difference]: Without dead ends: 273 [2022-04-06 08:52:46,661 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 08:52:46,676 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 166 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:52:46,677 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 499 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-06 08:52:46,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-04-06 08:52:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 188. [2022-04-06 08:52:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.6174863387978142) internal successors, (296), 183 states have internal predecessors, (296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:52:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 300 transitions. [2022-04-06 08:52:46,731 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 300 transitions. Word has length 50 [2022-04-06 08:52:46,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:52:46,739 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 300 transitions. [2022-04-06 08:52:46,739 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 08:52:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 300 transitions. [2022-04-06 08:52:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-06 08:52:46,741 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:52:46,741 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:52:46,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:52:46,742 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:52:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:52:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash 346272675, now seen corresponding path program 1 times [2022-04-06 08:52:46,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:52:46,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724192983] [2022-04-06 08:52:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:52:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:52:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:52:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:46,939 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 08:52:46,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:52:46,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724192983] [2022-04-06 08:52:46,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724192983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:52:46,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:52:46,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:52:46,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409864776] [2022-04-06 08:52:46,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:52:46,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:52:46,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:52:46,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:52:46,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:52:46,953 INFO L87 Difference]: Start difference. First operand 188 states and 300 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 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 08:52:49,421 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 08:52:51,438 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 08:52:51,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:52:51,811 INFO L93 Difference]: Finished difference Result 216 states and 340 transitions. [2022-04-06 08:52:51,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:52:51,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-06 08:52:51,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:52:51,813 INFO L225 Difference]: With dead ends: 216 [2022-04-06 08:52:51,813 INFO L226 Difference]: Without dead ends: 216 [2022-04-06 08:52:51,813 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 08:52:51,814 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 22 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:52:51,814 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 517 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 08:52:51,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-04-06 08:52:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-04-06 08:52:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6237113402061856) internal successors, (315), 194 states have internal predecessors, (315), 3 states have call successors, (3), 3 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 08:52:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 319 transitions. [2022-04-06 08:52:51,827 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 319 transitions. Word has length 51 [2022-04-06 08:52:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:52:51,827 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 319 transitions. [2022-04-06 08:52:51,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 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 08:52:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 319 transitions. [2022-04-06 08:52:51,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 08:52:51,829 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:52:51,829 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:52:51,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:52:51,829 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:52:51,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:52:51,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1001940347, now seen corresponding path program 1 times [2022-04-06 08:52:51,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:52:51,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40947288] [2022-04-06 08:52:51,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:52:51,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:52:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:51,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:52:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:52:51,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:52:51,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40947288] [2022-04-06 08:52:51,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40947288] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:52:51,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:52:51,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:52:51,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652056476] [2022-04-06 08:52:51,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:52:51,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:52:51,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:52:51,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:52:51,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:52:51,946 INFO L87 Difference]: Start difference. First operand 199 states and 319 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:52:53,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:52:55,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:52:57,298 WARN L534 Checker$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 08:52:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:52:57,650 INFO L93 Difference]: Finished difference Result 216 states and 339 transitions. [2022-04-06 08:52:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:52:57,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 08:52:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:52:57,651 INFO L225 Difference]: With dead ends: 216 [2022-04-06 08:52:57,651 INFO L226 Difference]: Without dead ends: 216 [2022-04-06 08:52:57,652 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 08:52:57,652 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 24 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:52:57,653 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 519 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:52:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-04-06 08:52:57,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-04-06 08:52:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6185567010309279) internal successors, (314), 194 states have internal predecessors, (314), 3 states have call successors, (3), 3 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 08:52:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 318 transitions. [2022-04-06 08:52:57,660 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 318 transitions. Word has length 64 [2022-04-06 08:52:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:52:57,660 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 318 transitions. [2022-04-06 08:52:57,660 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:52:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 318 transitions. [2022-04-06 08:52:57,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:52:57,661 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:52:57,661 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:52:57,661 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:52:57,662 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:52:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:52:57,662 INFO L85 PathProgramCache]: Analyzing trace with hash -853695767, now seen corresponding path program 1 times [2022-04-06 08:52:57,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:52:57,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739269515] [2022-04-06 08:52:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:52:57,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:52:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:57,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:52:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:52:57,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:52:57,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739269515] [2022-04-06 08:52:57,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739269515] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:52:57,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:52:57,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:52:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597096398] [2022-04-06 08:52:57,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:52:57,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:52:57,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:52:57,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:52:57,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:52:57,755 INFO L87 Difference]: Start difference. First operand 199 states and 318 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 08:53:00,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:53:01,167 WARN L534 Checker$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 08:53:01,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:01,522 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-04-06 08:53:01,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:01,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:53:01,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:01,523 INFO L225 Difference]: With dead ends: 215 [2022-04-06 08:53:01,523 INFO L226 Difference]: Without dead ends: 215 [2022-04-06 08:53:01,524 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 08:53:01,525 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:01,526 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-06 08:53:01,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-04-06 08:53:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2022-04-06 08:53:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 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 08:53:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-04-06 08:53:01,531 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 65 [2022-04-06 08:53:01,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:01,531 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-04-06 08:53:01,532 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 08:53:01,532 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-04-06 08:53:01,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:53:01,533 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:01,533 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:01,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:53:01,533 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:01,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash 108125897, now seen corresponding path program 1 times [2022-04-06 08:53:01,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:01,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642694114] [2022-04-06 08:53:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:01,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:01,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:53:01,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:01,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642694114] [2022-04-06 08:53:01,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642694114] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:01,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:01,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:01,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426549852] [2022-04-06 08:53:01,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:01,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:01,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:01,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:01,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:01,648 INFO L87 Difference]: Start difference. First operand 199 states and 317 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 08:53:03,655 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 08:53:04,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:04,140 INFO L93 Difference]: Finished difference Result 323 states and 510 transitions. [2022-04-06 08:53:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:04,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:53:04,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:04,142 INFO L225 Difference]: With dead ends: 323 [2022-04-06 08:53:04,142 INFO L226 Difference]: Without dead ends: 323 [2022-04-06 08:53:04,142 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 08:53:04,142 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 161 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:04,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 380 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 08:53:04,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-04-06 08:53:04,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 211. [2022-04-06 08:53:04,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5970873786407767) internal successors, (329), 206 states have internal predecessors, (329), 3 states have call successors, (3), 3 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 08:53:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 333 transitions. [2022-04-06 08:53:04,149 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 333 transitions. Word has length 65 [2022-04-06 08:53:04,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:04,149 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 333 transitions. [2022-04-06 08:53:04,149 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 08:53:04,149 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 333 transitions. [2022-04-06 08:53:04,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:53:04,150 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:04,150 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:04,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:53:04,151 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:04,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash -236581015, now seen corresponding path program 1 times [2022-04-06 08:53:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:04,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980990106] [2022-04-06 08:53:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:53:04,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:04,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980990106] [2022-04-06 08:53:04,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980990106] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:04,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:04,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:04,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639254891] [2022-04-06 08:53:04,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:04,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:04,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:04,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:04,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:04,267 INFO L87 Difference]: Start difference. First operand 211 states and 333 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 08:53:07,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:53:08,644 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 08:53:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:09,089 INFO L93 Difference]: Finished difference Result 322 states and 506 transitions. [2022-04-06 08:53:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:53:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:09,091 INFO L225 Difference]: With dead ends: 322 [2022-04-06 08:53:09,091 INFO L226 Difference]: Without dead ends: 322 [2022-04-06 08:53:09,091 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 08:53:09,091 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 154 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:09,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 08:53:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-04-06 08:53:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-04-06 08:53:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5943396226415094) internal successors, (338), 212 states have internal predecessors, (338), 3 states have call successors, (3), 3 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 08:53:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 342 transitions. [2022-04-06 08:53:09,097 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 342 transitions. Word has length 65 [2022-04-06 08:53:09,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:09,097 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 342 transitions. [2022-04-06 08:53:09,097 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 08:53:09,097 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 342 transitions. [2022-04-06 08:53:09,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:53:09,111 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:09,111 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:09,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:53:09,111 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:09,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:09,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1695836809, now seen corresponding path program 1 times [2022-04-06 08:53:09,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:09,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018873130] [2022-04-06 08:53:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:09,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:09,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:53:09,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:09,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018873130] [2022-04-06 08:53:09,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018873130] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:09,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:09,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:09,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983921234] [2022-04-06 08:53:09,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:09,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:09,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:09,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:09,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:09,225 INFO L87 Difference]: Start difference. First operand 217 states and 342 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 08:53:11,150 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 08:53:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:12,554 INFO L93 Difference]: Finished difference Result 230 states and 358 transitions. [2022-04-06 08:53:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:12,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:53:12,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:12,556 INFO L225 Difference]: With dead ends: 230 [2022-04-06 08:53:12,556 INFO L226 Difference]: Without dead ends: 230 [2022-04-06 08:53:12,556 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 08:53:12,556 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:12,557 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-06 08:53:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-04-06 08:53:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-04-06 08:53:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5896226415094339) internal successors, (337), 212 states have internal predecessors, (337), 3 states have call successors, (3), 3 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 08:53:12,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 341 transitions. [2022-04-06 08:53:12,564 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 341 transitions. Word has length 65 [2022-04-06 08:53:12,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:12,564 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 341 transitions. [2022-04-06 08:53:12,564 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 08:53:12,564 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 341 transitions. [2022-04-06 08:53:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 08:53:12,565 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:12,565 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:12,565 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:53:12,565 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1137620101, now seen corresponding path program 1 times [2022-04-06 08:53:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:12,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418093358] [2022-04-06 08:53:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:53:12,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:12,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418093358] [2022-04-06 08:53:12,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418093358] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:12,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:12,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:12,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603204121] [2022-04-06 08:53:12,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:12,668 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:12,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:12,668 INFO L87 Difference]: Start difference. First operand 217 states and 341 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 08:53:14,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:53:16,216 WARN L534 Checker$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 08:53:18,242 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 08:53:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:18,668 INFO L93 Difference]: Finished difference Result 322 states and 502 transitions. [2022-04-06 08:53:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:18,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-06 08:53:18,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:18,670 INFO L225 Difference]: With dead ends: 322 [2022-04-06 08:53:18,670 INFO L226 Difference]: Without dead ends: 322 [2022-04-06 08:53:18,670 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 08:53:18,671 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 158 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:18,671 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:53:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-04-06 08:53:18,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-04-06 08:53:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5754716981132075) internal successors, (334), 212 states have internal predecessors, (334), 3 states have call successors, (3), 3 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 08:53:18,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 338 transitions. [2022-04-06 08:53:18,675 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 338 transitions. Word has length 66 [2022-04-06 08:53:18,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:18,675 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 338 transitions. [2022-04-06 08:53:18,675 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 08:53:18,675 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 338 transitions. [2022-04-06 08:53:18,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 08:53:18,676 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:18,676 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:18,676 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:53:18,676 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:18,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:18,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1724441147, now seen corresponding path program 1 times [2022-04-06 08:53:18,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:18,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184743640] [2022-04-06 08:53:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:18,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:53:18,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:18,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184743640] [2022-04-06 08:53:18,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184743640] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:18,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:18,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064162443] [2022-04-06 08:53:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:18,793 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:18,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:18,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:18,794 INFO L87 Difference]: Start difference. First operand 217 states and 338 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 08:53:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:21,904 INFO L93 Difference]: Finished difference Result 230 states and 354 transitions. [2022-04-06 08:53:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:21,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-06 08:53:21,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:21,906 INFO L225 Difference]: With dead ends: 230 [2022-04-06 08:53:21,906 INFO L226 Difference]: Without dead ends: 230 [2022-04-06 08:53:21,906 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 08:53:21,906 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:21,906 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-06 08:53:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-04-06 08:53:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-04-06 08:53:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.570754716981132) internal successors, (333), 212 states have internal predecessors, (333), 3 states have call successors, (3), 3 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 08:53:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 337 transitions. [2022-04-06 08:53:21,910 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 337 transitions. Word has length 67 [2022-04-06 08:53:21,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:21,910 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 337 transitions. [2022-04-06 08:53:21,910 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 08:53:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 337 transitions. [2022-04-06 08:53:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 08:53:21,911 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:21,911 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:21,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:53:21,911 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:21,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:21,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1640250846, now seen corresponding path program 1 times [2022-04-06 08:53:21,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:21,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463987977] [2022-04-06 08:53:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:21,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:21,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:53:21,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:21,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463987977] [2022-04-06 08:53:21,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463987977] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:21,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:21,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:21,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498003603] [2022-04-06 08:53:21,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:21,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:21,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:21,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:21,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:21,993 INFO L87 Difference]: Start difference. First operand 217 states and 337 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 08:53:24,615 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 08:53:25,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:25,413 INFO L93 Difference]: Finished difference Result 220 states and 340 transitions. [2022-04-06 08:53:25,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:25,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-06 08:53:25,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:25,415 INFO L225 Difference]: With dead ends: 220 [2022-04-06 08:53:25,415 INFO L226 Difference]: Without dead ends: 220 [2022-04-06 08:53:25,415 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 08:53:25,415 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 11 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:25,416 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 541 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:53:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-04-06 08:53:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-04-06 08:53:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5660377358490567) internal successors, (332), 212 states have internal predecessors, (332), 3 states have call successors, (3), 3 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 08:53:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 336 transitions. [2022-04-06 08:53:25,419 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 336 transitions. Word has length 68 [2022-04-06 08:53:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:25,419 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 336 transitions. [2022-04-06 08:53:25,419 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 08:53:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 336 transitions. [2022-04-06 08:53:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 08:53:25,420 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:25,420 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:25,420 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:53:25,420 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash 628685139, now seen corresponding path program 1 times [2022-04-06 08:53:25,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:25,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085485038] [2022-04-06 08:53:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:25,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:53:25,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:25,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085485038] [2022-04-06 08:53:25,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085485038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:25,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:25,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:25,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661157972] [2022-04-06 08:53:25,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:25,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:25,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:25,522 INFO L87 Difference]: Start difference. First operand 217 states and 336 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 08:53:27,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:53:29,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:53:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:29,970 INFO L93 Difference]: Finished difference Result 322 states and 499 transitions. [2022-04-06 08:53:29,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-06 08:53:29,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:29,972 INFO L225 Difference]: With dead ends: 322 [2022-04-06 08:53:29,972 INFO L226 Difference]: Without dead ends: 322 [2022-04-06 08:53:29,972 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 08:53:29,974 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 131 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:29,974 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 08:53:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-04-06 08:53:29,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 239. [2022-04-06 08:53:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.6025641025641026) internal successors, (375), 234 states have internal predecessors, (375), 3 states have call successors, (3), 3 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 08:53:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 379 transitions. [2022-04-06 08:53:29,978 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 379 transitions. Word has length 68 [2022-04-06 08:53:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:29,979 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 379 transitions. [2022-04-06 08:53:29,979 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 08:53:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 379 transitions. [2022-04-06 08:53:29,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-04-06 08:53:29,979 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:29,980 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, 1] [2022-04-06 08:53:29,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:53:29,980 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:29,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:29,980 INFO L85 PathProgramCache]: Analyzing trace with hash -486685090, now seen corresponding path program 1 times [2022-04-06 08:53:29,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:29,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098582188] [2022-04-06 08:53:29,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:29,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-06 08:53:30,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:30,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098582188] [2022-04-06 08:53:30,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098582188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:30,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:30,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:30,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679063848] [2022-04-06 08:53:30,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:30,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:30,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:30,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:30,059 INFO L87 Difference]: Start difference. First operand 239 states and 379 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:31,666 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 08:53:33,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:33,447 INFO L93 Difference]: Finished difference Result 281 states and 440 transitions. [2022-04-06 08:53:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:33,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-04-06 08:53:33,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:33,448 INFO L225 Difference]: With dead ends: 281 [2022-04-06 08:53:33,448 INFO L226 Difference]: Without dead ends: 281 [2022-04-06 08:53:33,448 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 08:53:33,449 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:33,449 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:53:33,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-04-06 08:53:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2022-04-06 08:53:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 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 08:53:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-04-06 08:53:33,453 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 96 [2022-04-06 08:53:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:33,453 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-04-06 08:53:33,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-04-06 08:53:33,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-06 08:53:33,454 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:33,454 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, 1] [2022-04-06 08:53:33,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:53:33,454 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:33,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:33,454 INFO L85 PathProgramCache]: Analyzing trace with hash 818702560, now seen corresponding path program 1 times [2022-04-06 08:53:33,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:33,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041389124] [2022-04-06 08:53:33,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:33,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:33,536 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 08:53:33,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:33,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041389124] [2022-04-06 08:53:33,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041389124] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:33,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:33,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:33,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18377965] [2022-04-06 08:53:33,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:33,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:33,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:33,538 INFO L87 Difference]: Start difference. First operand 261 states and 414 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 08:53:35,637 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 08:53:37,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:53:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:38,022 INFO L93 Difference]: Finished difference Result 384 states and 601 transitions. [2022-04-06 08:53:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:38,022 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 08:53:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:38,024 INFO L225 Difference]: With dead ends: 384 [2022-04-06 08:53:38,024 INFO L226 Difference]: Without dead ends: 384 [2022-04-06 08:53:38,024 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 08:53:38,024 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 154 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:38,024 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 640 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 08:53:38,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-04-06 08:53:38,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 277. [2022-04-06 08:53:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.588235294117647) internal successors, (432), 272 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 436 transitions. [2022-04-06 08:53:38,029 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 436 transitions. Word has length 109 [2022-04-06 08:53:38,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:38,029 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 436 transitions. [2022-04-06 08:53:38,029 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 08:53:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 436 transitions. [2022-04-06 08:53:38,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-06 08:53:38,030 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:38,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:53:38,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:53:38,030 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash -709493596, now seen corresponding path program 1 times [2022-04-06 08:53:38,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:38,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482533992] [2022-04-06 08:53:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:38,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:38,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:38,134 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 08:53:38,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:38,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482533992] [2022-04-06 08:53:38,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482533992] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:38,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:38,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:38,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142656283] [2022-04-06 08:53:38,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:38,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:38,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:38,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:38,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:38,136 INFO L87 Difference]: Start difference. First operand 277 states and 436 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 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 08:53:40,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:40,779 INFO L93 Difference]: Finished difference Result 290 states and 451 transitions. [2022-04-06 08:53:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:40,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-06 08:53:40,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:40,780 INFO L225 Difference]: With dead ends: 290 [2022-04-06 08:53:40,781 INFO L226 Difference]: Without dead ends: 290 [2022-04-06 08:53:40,781 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 08:53:40,781 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 20 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:40,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 610 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 08:53:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-04-06 08:53:40,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2022-04-06 08:53:40,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5845588235294117) internal successors, (431), 272 states have internal predecessors, (431), 3 states have call successors, (3), 3 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 08:53:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 435 transitions. [2022-04-06 08:53:40,785 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 435 transitions. Word has length 110 [2022-04-06 08:53:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:40,785 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 435 transitions. [2022-04-06 08:53:40,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 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 08:53:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 435 transitions. [2022-04-06 08:53:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-06 08:53:40,786 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:40,786 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, 1] [2022-04-06 08:53:40,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:53:40,786 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:40,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:40,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1832588356, now seen corresponding path program 1 times [2022-04-06 08:53:40,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:40,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499174942] [2022-04-06 08:53:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:40,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:40,875 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 08:53:40,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:40,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499174942] [2022-04-06 08:53:40,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499174942] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:40,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:40,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:40,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382251774] [2022-04-06 08:53:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:40,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:40,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:40,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:40,876 INFO L87 Difference]: Start difference. First operand 277 states and 435 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:44,262 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 08:53:46,284 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 08:53:46,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:46,707 INFO L93 Difference]: Finished difference Result 360 states and 552 transitions. [2022-04-06 08:53:46,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:46,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-06 08:53:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:46,709 INFO L225 Difference]: With dead ends: 360 [2022-04-06 08:53:46,709 INFO L226 Difference]: Without dead ends: 360 [2022-04-06 08:53:46,709 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 08:53:46,709 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 153 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:46,709 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:53:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-04-06 08:53:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 277. [2022-04-06 08:53:46,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5735294117647058) internal successors, (428), 272 states have internal predecessors, (428), 3 states have call successors, (3), 3 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 08:53:46,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 432 transitions. [2022-04-06 08:53:46,713 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 432 transitions. Word has length 110 [2022-04-06 08:53:46,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:46,714 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 432 transitions. [2022-04-06 08:53:46,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 432 transitions. [2022-04-06 08:53:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-06 08:53:46,732 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:46,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:53:46,733 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:53:46,733 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:46,733 INFO L85 PathProgramCache]: Analyzing trace with hash -570233019, now seen corresponding path program 1 times [2022-04-06 08:53:46,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:46,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159287882] [2022-04-06 08:53:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:46,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-06 08:53:46,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:46,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159287882] [2022-04-06 08:53:46,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159287882] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:46,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:46,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 08:53:46,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945818455] [2022-04-06 08:53:46,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:46,830 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 08:53:46,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 08:53:46,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:53:46,831 INFO L87 Difference]: Start difference. First operand 277 states and 432 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:48,594 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 08:53:51,899 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 08:53:52,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:52,254 INFO L93 Difference]: Finished difference Result 286 states and 443 transitions. [2022-04-06 08:53:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 08:53:52,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-04-06 08:53:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:52,258 INFO L225 Difference]: With dead ends: 286 [2022-04-06 08:53:52,258 INFO L226 Difference]: Without dead ends: 286 [2022-04-06 08:53:52,258 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 08:53:52,259 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:52,259 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:53:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-04-06 08:53:52,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-04-06 08:53:52,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5622775800711743) internal successors, (439), 281 states have internal predecessors, (439), 3 states have call successors, (3), 3 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 08:53:52,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 443 transitions. [2022-04-06 08:53:52,263 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 443 transitions. Word has length 111 [2022-04-06 08:53:52,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:52,263 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 443 transitions. [2022-04-06 08:53:52,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:52,263 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 443 transitions. [2022-04-06 08:53:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-06 08:53:52,264 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:52,264 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:52,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:53:52,264 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:52,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:52,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1550147049, now seen corresponding path program 1 times [2022-04-06 08:53:52,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:52,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996537407] [2022-04-06 08:53:52,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:52,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:53:52,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:52,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996537407] [2022-04-06 08:53:52,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996537407] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:52,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:52,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:52,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731714608] [2022-04-06 08:53:52,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:52,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:52,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:52,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:52,347 INFO L87 Difference]: Start difference. First operand 286 states and 443 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:54,828 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 08:53:56,850 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 08:53:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:53:57,696 INFO L93 Difference]: Finished difference Result 313 states and 477 transitions. [2022-04-06 08:53:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:53:57,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-06 08:53:57,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:53:57,697 INFO L225 Difference]: With dead ends: 313 [2022-04-06 08:53:57,697 INFO L226 Difference]: Without dead ends: 313 [2022-04-06 08:53:57,697 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 08:53:57,698 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 36 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:53:57,698 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 08:53:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-04-06 08:53:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-04-06 08:53:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5587188612099645) internal successors, (438), 281 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 442 transitions. [2022-04-06 08:53:57,702 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 442 transitions. Word has length 113 [2022-04-06 08:53:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:53:57,702 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 442 transitions. [2022-04-06 08:53:57,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 442 transitions. [2022-04-06 08:53:57,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-04-06 08:53:57,703 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:53:57,703 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:53:57,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:53:57,703 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:53:57,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:53:57,703 INFO L85 PathProgramCache]: Analyzing trace with hash 373566476, now seen corresponding path program 1 times [2022-04-06 08:53:57,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:53:57,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867264123] [2022-04-06 08:53:57,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:53:57,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:53:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:53:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:53:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:53:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:53:57,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867264123] [2022-04-06 08:53:57,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867264123] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:53:57,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:53:57,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:53:57,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330824891] [2022-04-06 08:53:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:53:57,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:53:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:53:57,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:53:57,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:53:57,807 INFO L87 Difference]: Start difference. First operand 286 states and 442 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:53:58,967 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 08:54:00,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:02,228 WARN L534 Checker$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 08:54:03,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:03,452 INFO L93 Difference]: Finished difference Result 378 states and 569 transitions. [2022-04-06 08:54:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:03,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-04-06 08:54:03,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:03,454 INFO L225 Difference]: With dead ends: 378 [2022-04-06 08:54:03,454 INFO L226 Difference]: Without dead ends: 378 [2022-04-06 08:54:03,454 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 08:54:03,455 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 154 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:03,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:54:03,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-04-06 08:54:03,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2022-04-06 08:54:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5444839857651245) internal successors, (434), 281 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 438 transitions. [2022-04-06 08:54:03,459 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 438 transitions. Word has length 114 [2022-04-06 08:54:03,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:03,460 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 438 transitions. [2022-04-06 08:54:03,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 438 transitions. [2022-04-06 08:54:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 08:54:03,461 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:03,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:03,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 08:54:03,461 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:03,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1630354749, now seen corresponding path program 1 times [2022-04-06 08:54:03,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:03,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118971219] [2022-04-06 08:54:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:03,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:03,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:54:03,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118971219] [2022-04-06 08:54:03,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118971219] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:03,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:03,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:03,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418053800] [2022-04-06 08:54:03,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:03,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:03,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:03,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:03,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:03,568 INFO L87 Difference]: Start difference. First operand 286 states and 438 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 08:54:05,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:06,976 INFO L93 Difference]: Finished difference Result 454 states and 697 transitions. [2022-04-06 08:54:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:06,977 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 118 [2022-04-06 08:54:06,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:06,978 INFO L225 Difference]: With dead ends: 454 [2022-04-06 08:54:06,978 INFO L226 Difference]: Without dead ends: 454 [2022-04-06 08:54:06,978 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 08:54:06,979 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 135 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:06,979 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 416 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:54:06,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-04-06 08:54:06,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 350. [2022-04-06 08:54:06,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5594202898550724) internal successors, (538), 345 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 542 transitions. [2022-04-06 08:54:06,983 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 542 transitions. Word has length 118 [2022-04-06 08:54:06,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:06,984 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 542 transitions. [2022-04-06 08:54:06,984 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 08:54:06,984 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 542 transitions. [2022-04-06 08:54:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 08:54:06,984 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:06,985 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, 1] [2022-04-06 08:54:06,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 08:54:06,985 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:06,985 INFO L85 PathProgramCache]: Analyzing trace with hash -197061542, now seen corresponding path program 1 times [2022-04-06 08:54:06,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:06,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266466632] [2022-04-06 08:54:06,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:06,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:07,084 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 08:54:07,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:07,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266466632] [2022-04-06 08:54:07,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266466632] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:07,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:07,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553082928] [2022-04-06 08:54:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:07,085 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:07,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:07,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:07,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:07,085 INFO L87 Difference]: Start difference. First operand 350 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:08,189 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 08:54:09,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:11,176 WARN L534 Checker$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 08:54:13,200 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 08:54:13,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:13,504 INFO L93 Difference]: Finished difference Result 357 states and 551 transitions. [2022-04-06 08:54:13,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:13,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 08:54:13,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:13,507 INFO L225 Difference]: With dead ends: 357 [2022-04-06 08:54:13,507 INFO L226 Difference]: Without dead ends: 357 [2022-04-06 08:54:13,508 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 08:54:13,509 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:13,510 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 561 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 08:54:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-04-06 08:54:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 350. [2022-04-06 08:54:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5565217391304347) internal successors, (537), 345 states have internal predecessors, (537), 3 states have call successors, (3), 3 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 08:54:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 541 transitions. [2022-04-06 08:54:13,518 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 541 transitions. Word has length 123 [2022-04-06 08:54:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:13,518 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 541 transitions. [2022-04-06 08:54:13,518 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 541 transitions. [2022-04-06 08:54:13,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-06 08:54:13,519 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:13,519 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, 1, 1] [2022-04-06 08:54:13,519 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 08:54:13,519 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:13,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:13,520 INFO L85 PathProgramCache]: Analyzing trace with hash -337214073, now seen corresponding path program 1 times [2022-04-06 08:54:13,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:13,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209207871] [2022-04-06 08:54:13,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:13,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:13,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:13,603 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 08:54:13,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:13,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209207871] [2022-04-06 08:54:13,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209207871] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:13,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:13,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:13,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255009529] [2022-04-06 08:54:13,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:13,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:13,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:13,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:13,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:13,604 INFO L87 Difference]: Start difference. First operand 350 states and 541 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 08:54:15,611 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 08:54:16,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:16,012 INFO L93 Difference]: Finished difference Result 482 states and 736 transitions. [2022-04-06 08:54:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:16,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-06 08:54:16,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:16,014 INFO L225 Difference]: With dead ends: 482 [2022-04-06 08:54:16,014 INFO L226 Difference]: Without dead ends: 482 [2022-04-06 08:54:16,014 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 08:54:16,015 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 131 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:16,015 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 380 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:54:16,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-04-06 08:54:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 387. [2022-04-06 08:54:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5628272251308901) internal successors, (597), 382 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 601 transitions. [2022-04-06 08:54:16,019 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 601 transitions. Word has length 124 [2022-04-06 08:54:16,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:16,019 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 601 transitions. [2022-04-06 08:54:16,020 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 08:54:16,020 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 601 transitions. [2022-04-06 08:54:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-06 08:54:16,020 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:16,020 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, 1, 1] [2022-04-06 08:54:16,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 08:54:16,021 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:16,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:16,021 INFO L85 PathProgramCache]: Analyzing trace with hash 492972657, now seen corresponding path program 1 times [2022-04-06 08:54:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:16,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032229004] [2022-04-06 08:54:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:16,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:16,113 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 08:54:16,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:16,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032229004] [2022-04-06 08:54:16,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032229004] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:16,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:16,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:16,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807004980] [2022-04-06 08:54:16,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:16,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:16,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:16,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:16,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:16,114 INFO L87 Difference]: Start difference. First operand 387 states and 601 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 08:54:17,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:19,521 WARN L534 Checker$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 08:54:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:20,863 INFO L93 Difference]: Finished difference Result 491 states and 754 transitions. [2022-04-06 08:54:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:20,864 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 125 [2022-04-06 08:54:20,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:20,865 INFO L225 Difference]: With dead ends: 491 [2022-04-06 08:54:20,865 INFO L226 Difference]: Without dead ends: 491 [2022-04-06 08:54:20,865 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 08:54:20,867 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 83 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:20,875 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 511 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:54:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-04-06 08:54:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 427. [2022-04-06 08:54:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.566350710900474) internal successors, (661), 422 states have internal predecessors, (661), 3 states have call successors, (3), 3 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 08:54:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 665 transitions. [2022-04-06 08:54:20,896 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 665 transitions. Word has length 125 [2022-04-06 08:54:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:20,897 INFO L478 AbstractCegarLoop]: Abstraction has 427 states and 665 transitions. [2022-04-06 08:54:20,897 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 08:54:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 665 transitions. [2022-04-06 08:54:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-06 08:54:20,898 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:20,898 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, 1, 1] [2022-04-06 08:54:20,898 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 08:54:20,898 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:20,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash 506505458, now seen corresponding path program 1 times [2022-04-06 08:54:20,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:20,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232543226] [2022-04-06 08:54:20,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:20,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-04-06 08:54:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:21,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232543226] [2022-04-06 08:54:21,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232543226] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:21,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:21,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240543113] [2022-04-06 08:54:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:21,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:21,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:21,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:21,002 INFO L87 Difference]: Start difference. First operand 427 states and 665 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:23,238 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 08:54:24,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:24,020 INFO L93 Difference]: Finished difference Result 483 states and 743 transitions. [2022-04-06 08:54:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:24,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-06 08:54:24,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:24,026 INFO L225 Difference]: With dead ends: 483 [2022-04-06 08:54:24,026 INFO L226 Difference]: Without dead ends: 483 [2022-04-06 08:54:24,026 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 08:54:24,027 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 36 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:24,027 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 639 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-06 08:54:24,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-04-06 08:54:24,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 451. [2022-04-06 08:54:24,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.562780269058296) internal successors, (697), 446 states have internal predecessors, (697), 3 states have call successors, (3), 3 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 08:54:24,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 701 transitions. [2022-04-06 08:54:24,036 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 701 transitions. Word has length 125 [2022-04-06 08:54:24,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:24,036 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 701 transitions. [2022-04-06 08:54:24,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:24,036 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 701 transitions. [2022-04-06 08:54:24,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 08:54:24,037 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:24,037 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 08:54:24,037 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 08:54:24,037 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:24,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:24,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2113567405, now seen corresponding path program 1 times [2022-04-06 08:54:24,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:24,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425206225] [2022-04-06 08:54:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:24,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:24,143 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 08:54:24,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:24,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425206225] [2022-04-06 08:54:24,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425206225] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:24,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:24,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:24,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317916083] [2022-04-06 08:54:24,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:24,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:24,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:24,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:24,145 INFO L87 Difference]: Start difference. First operand 451 states and 701 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 08:54:25,539 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 08:54:27,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:29,284 WARN L534 Checker$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 08:54:29,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:29,657 INFO L93 Difference]: Finished difference Result 508 states and 778 transitions. [2022-04-06 08:54:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:29,658 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 08:54:29,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:29,659 INFO L225 Difference]: With dead ends: 508 [2022-04-06 08:54:29,659 INFO L226 Difference]: Without dead ends: 508 [2022-04-06 08:54:29,659 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 08:54:29,660 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 69 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:29,660 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 517 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 08:54:29,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-04-06 08:54:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454. [2022-04-06 08:54:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.55902004454343) internal successors, (700), 449 states have internal predecessors, (700), 3 states have call successors, (3), 3 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 08:54:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 704 transitions. [2022-04-06 08:54:29,665 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 704 transitions. Word has length 132 [2022-04-06 08:54:29,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:29,665 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 704 transitions. [2022-04-06 08:54:29,665 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 08:54:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 704 transitions. [2022-04-06 08:54:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-04-06 08:54:29,666 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:29,666 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:29,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 08:54:29,666 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:29,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1898923484, now seen corresponding path program 1 times [2022-04-06 08:54:29,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:29,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043129043] [2022-04-06 08:54:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 08:54:29,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:29,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043129043] [2022-04-06 08:54:29,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043129043] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:29,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:29,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:29,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320123148] [2022-04-06 08:54:29,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:29,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:29,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:29,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:29,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:29,761 INFO L87 Difference]: Start difference. First operand 454 states and 704 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:31,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:32,389 WARN L534 Checker$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 08:54:34,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:34,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:34,649 INFO L93 Difference]: Finished difference Result 536 states and 814 transitions. [2022-04-06 08:54:34,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:34,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-04-06 08:54:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:34,651 INFO L225 Difference]: With dead ends: 536 [2022-04-06 08:54:34,651 INFO L226 Difference]: Without dead ends: 536 [2022-04-06 08:54:34,651 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 08:54:34,651 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 153 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:34,651 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 08:54:34,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-04-06 08:54:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 454. [2022-04-06 08:54:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5412026726057906) internal successors, (692), 449 states have internal predecessors, (692), 3 states have call successors, (3), 3 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 08:54:34,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 696 transitions. [2022-04-06 08:54:34,656 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 696 transitions. Word has length 142 [2022-04-06 08:54:34,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:34,656 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 696 transitions. [2022-04-06 08:54:34,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 696 transitions. [2022-04-06 08:54:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:54:34,657 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:34,657 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, 1] [2022-04-06 08:54:34,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 08:54:34,657 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash 808274459, now seen corresponding path program 1 times [2022-04-06 08:54:34,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:34,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353096245] [2022-04-06 08:54:34,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:34,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:34,742 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 08:54:34,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:34,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353096245] [2022-04-06 08:54:34,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353096245] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:34,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:34,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:34,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216171982] [2022-04-06 08:54:34,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:34,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:34,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:34,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:34,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:34,744 INFO L87 Difference]: Start difference. First operand 454 states and 696 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 08:54:37,303 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 08:54:39,321 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 08:54:39,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:39,682 INFO L93 Difference]: Finished difference Result 488 states and 744 transitions. [2022-04-06 08:54:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:39,682 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 08:54:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:39,684 INFO L225 Difference]: With dead ends: 488 [2022-04-06 08:54:39,684 INFO L226 Difference]: Without dead ends: 488 [2022-04-06 08:54:39,684 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 08:54:39,684 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 90 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:39,684 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 533 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 08:54:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-04-06 08:54:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 454. [2022-04-06 08:54:39,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5389755011135857) internal successors, (691), 449 states have internal predecessors, (691), 3 states have call successors, (3), 3 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 08:54:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 695 transitions. [2022-04-06 08:54:39,689 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 695 transitions. Word has length 145 [2022-04-06 08:54:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:39,689 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 695 transitions. [2022-04-06 08:54:39,689 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 08:54:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 695 transitions. [2022-04-06 08:54:39,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:54:39,690 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:39,690 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, 1] [2022-04-06 08:54:39,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 08:54:39,690 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1595144559, now seen corresponding path program 1 times [2022-04-06 08:54:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:39,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645323780] [2022-04-06 08:54:39,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:39,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:39,775 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 08:54:39,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:39,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645323780] [2022-04-06 08:54:39,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645323780] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:39,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:39,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:39,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677957116] [2022-04-06 08:54:39,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:39,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:39,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:39,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:39,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:39,776 INFO L87 Difference]: Start difference. First operand 454 states and 695 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 08:54:41,047 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 08:54:42,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:43,761 WARN L534 Checker$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 08:54:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:44,173 INFO L93 Difference]: Finished difference Result 576 states and 871 transitions. [2022-04-06 08:54:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:44,173 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 08:54:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:44,174 INFO L225 Difference]: With dead ends: 576 [2022-04-06 08:54:44,174 INFO L226 Difference]: Without dead ends: 576 [2022-04-06 08:54:44,175 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 08:54:44,175 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 136 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:44,176 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 406 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 08:54:44,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-04-06 08:54:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 484. [2022-04-06 08:54:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5302713987473904) internal successors, (733), 479 states have internal predecessors, (733), 3 states have call successors, (3), 3 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 08:54:44,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 737 transitions. [2022-04-06 08:54:44,181 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 737 transitions. Word has length 145 [2022-04-06 08:54:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:44,181 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 737 transitions. [2022-04-06 08:54:44,181 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 08:54:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 737 transitions. [2022-04-06 08:54:44,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:54:44,182 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:44,182 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, 1] [2022-04-06 08:54:44,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 08:54:44,182 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:44,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1608810012, now seen corresponding path program 1 times [2022-04-06 08:54:44,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:44,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389730225] [2022-04-06 08:54:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:44,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:44,268 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 08:54:44,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:44,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389730225] [2022-04-06 08:54:44,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389730225] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:44,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:44,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:44,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837715546] [2022-04-06 08:54:44,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:44,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:44,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:44,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:44,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:44,270 INFO L87 Difference]: Start difference. First operand 484 states and 737 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 08:54:45,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:47,621 WARN L534 Checker$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 08:54:49,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:51,648 WARN L534 Checker$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 08:54:51,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:51,969 INFO L93 Difference]: Finished difference Result 496 states and 753 transitions. [2022-04-06 08:54:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:51,969 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 08:54:51,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:51,970 INFO L225 Difference]: With dead ends: 496 [2022-04-06 08:54:51,970 INFO L226 Difference]: Without dead ends: 496 [2022-04-06 08:54:51,971 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 08:54:51,971 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:51,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 625 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 435 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-04-06 08:54:51,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-04-06 08:54:51,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 484. [2022-04-06 08:54:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5281837160751566) internal successors, (732), 479 states have internal predecessors, (732), 3 states have call successors, (3), 3 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 08:54:51,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 736 transitions. [2022-04-06 08:54:51,976 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 736 transitions. Word has length 145 [2022-04-06 08:54:51,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:51,976 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 736 transitions. [2022-04-06 08:54:51,976 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 08:54:51,976 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 736 transitions. [2022-04-06 08:54:51,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 08:54:51,977 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:51,977 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, 1] [2022-04-06 08:54:51,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 08:54:51,977 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:51,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:51,977 INFO L85 PathProgramCache]: Analyzing trace with hash -228541388, now seen corresponding path program 1 times [2022-04-06 08:54:51,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:51,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200096474] [2022-04-06 08:54:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:51,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:52,099 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 08:54:52,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200096474] [2022-04-06 08:54:52,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200096474] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:52,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:52,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579043636] [2022-04-06 08:54:52,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:52,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:52,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:52,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:52,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:52,101 INFO L87 Difference]: Start difference. First operand 484 states and 736 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:55,254 INFO L93 Difference]: Finished difference Result 516 states and 782 transitions. [2022-04-06 08:54:55,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:55,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-06 08:54:55,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:55,256 INFO L225 Difference]: With dead ends: 516 [2022-04-06 08:54:55,256 INFO L226 Difference]: Without dead ends: 516 [2022-04-06 08:54:55,256 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 08:54:55,257 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 67 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:55,258 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 537 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-06 08:54:55,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-04-06 08:54:55,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-04-06 08:54:55,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5260960334029228) internal successors, (731), 479 states have internal predecessors, (731), 3 states have call successors, (3), 3 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 08:54:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 735 transitions. [2022-04-06 08:54:55,263 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 735 transitions. Word has length 146 [2022-04-06 08:54:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:55,263 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 735 transitions. [2022-04-06 08:54:55,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:55,263 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 735 transitions. [2022-04-06 08:54:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:54:55,264 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:55,264 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:54:55,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 08:54:55,265 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:55,265 INFO L85 PathProgramCache]: Analyzing trace with hash 377443891, now seen corresponding path program 1 times [2022-04-06 08:54:55,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:55,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455336297] [2022-04-06 08:54:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:55,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 08:54:55,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:55,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455336297] [2022-04-06 08:54:55,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455336297] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:55,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:55,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994789667] [2022-04-06 08:54:55,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:55,355 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:55,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:55,355 INFO L87 Difference]: Start difference. First operand 484 states and 735 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:56,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:58,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:59,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:59,873 INFO L93 Difference]: Finished difference Result 566 states and 846 transitions. [2022-04-06 08:54:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:59,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:54:59,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:59,875 INFO L225 Difference]: With dead ends: 566 [2022-04-06 08:54:59,875 INFO L226 Difference]: Without dead ends: 566 [2022-04-06 08:54:59,875 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 08:54:59,876 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 142 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:59,876 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 396 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-06 08:54:59,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-04-06 08:54:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 484. [2022-04-06 08:54:59,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.511482254697286) internal successors, (724), 479 states have internal predecessors, (724), 3 states have call successors, (3), 3 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 08:54:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 728 transitions. [2022-04-06 08:54:59,881 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 728 transitions. Word has length 147 [2022-04-06 08:54:59,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:59,881 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 728 transitions. [2022-04-06 08:54:59,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:59,881 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 728 transitions. [2022-04-06 08:54:59,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:54:59,882 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:59,882 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:54:59,882 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 08:54:59,882 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:59,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:59,882 INFO L85 PathProgramCache]: Analyzing trace with hash 892964340, now seen corresponding path program 1 times [2022-04-06 08:54:59,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:59,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772786203] [2022-04-06 08:54:59,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:59,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 08:54:59,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:59,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772786203] [2022-04-06 08:54:59,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772786203] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:59,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:59,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:54:59,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102573731] [2022-04-06 08:54:59,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:59,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:54:59,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:54:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:54:59,987 INFO L87 Difference]: Start difference. First operand 484 states and 728 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:01,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:02,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:03,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:03,571 INFO L93 Difference]: Finished difference Result 939 states and 1408 transitions. [2022-04-06 08:55:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:03,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:55:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:03,573 INFO L225 Difference]: With dead ends: 939 [2022-04-06 08:55:03,573 INFO L226 Difference]: Without dead ends: 939 [2022-04-06 08:55:03,573 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 08:55:03,574 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:03,574 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 447 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:55:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-04-06 08:55:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-04-06 08:55:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.5032119914346895) internal successors, (1404), 934 states have internal predecessors, (1404), 3 states have call successors, (3), 3 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 08:55:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1408 transitions. [2022-04-06 08:55:03,583 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1408 transitions. Word has length 147 [2022-04-06 08:55:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:03,583 INFO L478 AbstractCegarLoop]: Abstraction has 939 states and 1408 transitions. [2022-04-06 08:55:03,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:03,583 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1408 transitions. [2022-04-06 08:55:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:55:03,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:03,585 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:03,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 08:55:03,585 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:03,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:03,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1908090507, now seen corresponding path program 1 times [2022-04-06 08:55:03,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:03,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412289972] [2022-04-06 08:55:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:03,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-06 08:55:03,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:03,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412289972] [2022-04-06 08:55:03,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412289972] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:03,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:03,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:03,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997293806] [2022-04-06 08:55:03,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:03,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:03,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:03,682 INFO L87 Difference]: Start difference. First operand 939 states and 1408 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:06,231 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 08:55:07,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:07,278 INFO L93 Difference]: Finished difference Result 966 states and 1443 transitions. [2022-04-06 08:55:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:07,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:55:07,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:07,281 INFO L225 Difference]: With dead ends: 966 [2022-04-06 08:55:07,281 INFO L226 Difference]: Without dead ends: 966 [2022-04-06 08:55:07,281 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 08:55:07,282 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:07,282 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:55:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-04-06 08:55:07,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-04-06 08:55:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4973985431841832) internal successors, (1439), 961 states have internal predecessors, (1439), 3 states have call successors, (3), 3 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 08:55:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1443 transitions. [2022-04-06 08:55:07,291 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1443 transitions. Word has length 147 [2022-04-06 08:55:07,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:07,291 INFO L478 AbstractCegarLoop]: Abstraction has 966 states and 1443 transitions. [2022-04-06 08:55:07,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:07,291 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1443 transitions. [2022-04-06 08:55:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:55:07,292 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:07,292 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:07,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 08:55:07,293 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:07,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:07,293 INFO L85 PathProgramCache]: Analyzing trace with hash 483416694, now seen corresponding path program 1 times [2022-04-06 08:55:07,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:07,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487755452] [2022-04-06 08:55:07,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:07,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-04-06 08:55:07,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:07,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487755452] [2022-04-06 08:55:07,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487755452] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:07,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:07,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:07,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919672450] [2022-04-06 08:55:07,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:07,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:07,375 INFO L87 Difference]: Start difference. First operand 966 states and 1443 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:08,436 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 08:55:10,452 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 08:55:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:11,253 INFO L93 Difference]: Finished difference Result 968 states and 1445 transitions. [2022-04-06 08:55:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:11,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:55:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:11,259 INFO L225 Difference]: With dead ends: 968 [2022-04-06 08:55:11,259 INFO L226 Difference]: Without dead ends: 968 [2022-04-06 08:55:11,259 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 08:55:11,260 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:11,260 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 259 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:55:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-04-06 08:55:11,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-04-06 08:55:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4963655244029075) internal successors, (1441), 963 states have internal predecessors, (1441), 3 states have call successors, (3), 3 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 08:55:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1445 transitions. [2022-04-06 08:55:11,269 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1445 transitions. Word has length 147 [2022-04-06 08:55:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:11,269 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1445 transitions. [2022-04-06 08:55:11,269 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1445 transitions. [2022-04-06 08:55:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 08:55:11,271 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:11,271 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:11,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 08:55:11,271 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:11,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:11,271 INFO L85 PathProgramCache]: Analyzing trace with hash 950619995, now seen corresponding path program 1 times [2022-04-06 08:55:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:11,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178271465] [2022-04-06 08:55:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:11,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:55:11,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:11,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178271465] [2022-04-06 08:55:11,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178271465] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:11,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:11,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:11,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769754849] [2022-04-06 08:55:11,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:11,356 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:11,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:11,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:11,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:11,356 INFO L87 Difference]: Start difference. First operand 968 states and 1445 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:13,827 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 08:55:14,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:14,267 INFO L93 Difference]: Finished difference Result 1423 states and 2125 transitions. [2022-04-06 08:55:14,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:14,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-06 08:55:14,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:14,271 INFO L225 Difference]: With dead ends: 1423 [2022-04-06 08:55:14,271 INFO L226 Difference]: Without dead ends: 1423 [2022-04-06 08:55:14,271 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 08:55:14,272 INFO L913 BasicCegarLoop]: 395 mSDtfsCounter, 153 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:14,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:55:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-04-06 08:55:14,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-04-06 08:55:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1418 states have (on average 1.495768688293371) internal successors, (2121), 1418 states have internal predecessors, (2121), 3 states have call successors, (3), 3 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 08:55:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2125 transitions. [2022-04-06 08:55:14,294 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2125 transitions. Word has length 149 [2022-04-06 08:55:14,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:14,294 INFO L478 AbstractCegarLoop]: Abstraction has 1423 states and 2125 transitions. [2022-04-06 08:55:14,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:14,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2125 transitions. [2022-04-06 08:55:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-04-06 08:55:14,297 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:14,297 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:14,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 08:55:14,297 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:14,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:14,297 INFO L85 PathProgramCache]: Analyzing trace with hash -685662058, now seen corresponding path program 1 times [2022-04-06 08:55:14,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:14,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102602241] [2022-04-06 08:55:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:14,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-04-06 08:55:14,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:14,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102602241] [2022-04-06 08:55:14,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102602241] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:14,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:14,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:14,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363485909] [2022-04-06 08:55:14,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:14,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:14,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:14,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:14,404 INFO L87 Difference]: Start difference. First operand 1423 states and 2125 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 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 08:55:17,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:18,237 INFO L93 Difference]: Finished difference Result 1603 states and 2380 transitions. [2022-04-06 08:55:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-04-06 08:55:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:18,241 INFO L225 Difference]: With dead ends: 1603 [2022-04-06 08:55:18,241 INFO L226 Difference]: Without dead ends: 1603 [2022-04-06 08:55:18,241 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 08:55:18,242 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 47 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:18,242 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 649 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-06 08:55:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-04-06 08:55:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1507. [2022-04-06 08:55:18,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.496005326231691) internal successors, (2247), 1502 states have internal predecessors, (2247), 3 states have call successors, (3), 3 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 08:55:18,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2251 transitions. [2022-04-06 08:55:18,253 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2251 transitions. Word has length 178 [2022-04-06 08:55:18,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:18,253 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2251 transitions. [2022-04-06 08:55:18,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 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 08:55:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2251 transitions. [2022-04-06 08:55:18,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-06 08:55:18,256 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:18,256 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:18,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 08:55:18,256 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash -407815232, now seen corresponding path program 1 times [2022-04-06 08:55:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:18,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950541032] [2022-04-06 08:55:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:18,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-04-06 08:55:18,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:18,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950541032] [2022-04-06 08:55:18,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950541032] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:18,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:18,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:18,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433121973] [2022-04-06 08:55:18,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:18,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:18,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:18,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:18,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:18,391 INFO L87 Difference]: Start difference. First operand 1507 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:21,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:21,988 INFO L93 Difference]: Finished difference Result 1718 states and 2514 transitions. [2022-04-06 08:55:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:21,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-04-06 08:55:21,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:21,992 INFO L225 Difference]: With dead ends: 1718 [2022-04-06 08:55:21,992 INFO L226 Difference]: Without dead ends: 1718 [2022-04-06 08:55:21,992 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 08:55:21,993 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 149 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:21,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 402 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:55:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-04-06 08:55:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-04-06 08:55:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4800266311584553) internal successors, (2223), 1502 states have internal predecessors, (2223), 3 states have call successors, (3), 3 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 08:55:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2227 transitions. [2022-04-06 08:55:22,005 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2227 transitions. Word has length 198 [2022-04-06 08:55:22,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:22,005 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2227 transitions. [2022-04-06 08:55:22,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2227 transitions. [2022-04-06 08:55:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-04-06 08:55:22,007 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:22,007 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:22,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 08:55:22,007 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:22,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash -216238576, now seen corresponding path program 1 times [2022-04-06 08:55:22,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:22,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902716231] [2022-04-06 08:55:22,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:22,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-04-06 08:55:22,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:22,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902716231] [2022-04-06 08:55:22,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902716231] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:22,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:22,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:22,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937039110] [2022-04-06 08:55:22,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:22,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:22,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:22,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:22,110 INFO L87 Difference]: Start difference. First operand 1507 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 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 08:55:24,398 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 08:55:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:25,326 INFO L93 Difference]: Finished difference Result 1718 states and 2490 transitions. [2022-04-06 08:55:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:25,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-04-06 08:55:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:25,330 INFO L225 Difference]: With dead ends: 1718 [2022-04-06 08:55:25,330 INFO L226 Difference]: Without dead ends: 1718 [2022-04-06 08:55:25,331 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 08:55:25,331 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 134 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:25,331 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-06 08:55:25,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-04-06 08:55:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-04-06 08:55:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4640479360852197) internal successors, (2199), 1502 states have internal predecessors, (2199), 3 states have call successors, (3), 3 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 08:55:25,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2203 transitions. [2022-04-06 08:55:25,342 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2203 transitions. Word has length 201 [2022-04-06 08:55:25,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:25,342 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2203 transitions. [2022-04-06 08:55:25,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 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 08:55:25,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2203 transitions. [2022-04-06 08:55:25,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-04-06 08:55:25,344 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:25,344 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:25,344 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 08:55:25,345 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:25,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:25,345 INFO L85 PathProgramCache]: Analyzing trace with hash -601967675, now seen corresponding path program 1 times [2022-04-06 08:55:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:25,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824177842] [2022-04-06 08:55:25,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:25,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-06 08:55:25,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:25,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824177842] [2022-04-06 08:55:25,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824177842] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:25,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:25,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584780473] [2022-04-06 08:55:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:25,448 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:25,448 INFO L87 Difference]: Start difference. First operand 1507 states and 2203 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:27,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:29,630 WARN L534 Checker$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 08:55:30,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:30,017 INFO L93 Difference]: Finished difference Result 1990 states and 2909 transitions. [2022-04-06 08:55:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:30,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-04-06 08:55:30,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:30,023 INFO L225 Difference]: With dead ends: 1990 [2022-04-06 08:55:30,023 INFO L226 Difference]: Without dead ends: 1990 [2022-04-06 08:55:30,023 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 08:55:30,023 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:30,023 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 08:55:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2022-04-06 08:55:30,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2022-04-06 08:55:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1985 states have (on average 1.4634760705289673) internal successors, (2905), 1985 states have internal predecessors, (2905), 3 states have call successors, (3), 3 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 08:55:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2909 transitions. [2022-04-06 08:55:30,041 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2909 transitions. Word has length 202 [2022-04-06 08:55:30,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:30,041 INFO L478 AbstractCegarLoop]: Abstraction has 1990 states and 2909 transitions. [2022-04-06 08:55:30,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:30,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2909 transitions. [2022-04-06 08:55:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-04-06 08:55:30,045 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:30,045 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:30,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 08:55:30,045 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:30,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:30,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1556196570, now seen corresponding path program 1 times [2022-04-06 08:55:30,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:30,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356719132] [2022-04-06 08:55:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:30,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:30,148 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-06 08:55:30,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:30,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356719132] [2022-04-06 08:55:30,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356719132] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:30,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:30,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:30,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119514292] [2022-04-06 08:55:30,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:30,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:30,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:30,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:30,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:30,149 INFO L87 Difference]: Start difference. First operand 1990 states and 2909 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:32,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:33,274 WARN L534 Checker$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 08:55:33,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:33,517 INFO L93 Difference]: Finished difference Result 2474 states and 3622 transitions. [2022-04-06 08:55:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-04-06 08:55:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:33,522 INFO L225 Difference]: With dead ends: 2474 [2022-04-06 08:55:33,522 INFO L226 Difference]: Without dead ends: 2474 [2022-04-06 08:55:33,523 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 08:55:33,523 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:33,524 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:55:33,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-04-06 08:55:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-04-06 08:55:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2469 states have (on average 1.465370595382746) internal successors, (3618), 2469 states have internal predecessors, (3618), 3 states have call successors, (3), 3 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 08:55:33,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3622 transitions. [2022-04-06 08:55:33,544 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3622 transitions. Word has length 202 [2022-04-06 08:55:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:33,545 INFO L478 AbstractCegarLoop]: Abstraction has 2474 states and 3622 transitions. [2022-04-06 08:55:33,546 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3622 transitions. [2022-04-06 08:55:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-04-06 08:55:33,552 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:33,552 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1] [2022-04-06 08:55:33,553 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 08:55:33,553 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:33,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 745953542, now seen corresponding path program 1 times [2022-04-06 08:55:33,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:33,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593871741] [2022-04-06 08:55:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-06 08:55:33,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:33,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593871741] [2022-04-06 08:55:33,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593871741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:33,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:33,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:33,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480575495] [2022-04-06 08:55:33,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:33,703 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:33,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:33,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:33,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:33,703 INFO L87 Difference]: Start difference. First operand 2474 states and 3622 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 08:55:35,276 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 08:55:36,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:36,863 INFO L93 Difference]: Finished difference Result 2958 states and 4336 transitions. [2022-04-06 08:55:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:36,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 241 [2022-04-06 08:55:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:36,892 INFO L225 Difference]: With dead ends: 2958 [2022-04-06 08:55:36,892 INFO L226 Difference]: Without dead ends: 2958 [2022-04-06 08:55:36,892 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 08:55:36,892 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:36,892 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 386 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-06 08:55:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-04-06 08:55:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2022-04-06 08:55:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2953 states have (on average 1.4669827294277007) internal successors, (4332), 2953 states have internal predecessors, (4332), 3 states have call successors, (3), 3 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 08:55:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4336 transitions. [2022-04-06 08:55:36,915 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4336 transitions. Word has length 241 [2022-04-06 08:55:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:36,916 INFO L478 AbstractCegarLoop]: Abstraction has 2958 states and 4336 transitions. [2022-04-06 08:55:36,916 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 08:55:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4336 transitions. [2022-04-06 08:55:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-04-06 08:55:36,919 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:36,919 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:36,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 08:55:36,919 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:36,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:36,919 INFO L85 PathProgramCache]: Analyzing trace with hash -789418403, now seen corresponding path program 1 times [2022-04-06 08:55:36,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:36,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824683346] [2022-04-06 08:55:36,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:36,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:37,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-06 08:55:37,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:37,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824683346] [2022-04-06 08:55:37,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824683346] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:37,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:37,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:37,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977431555] [2022-04-06 08:55:37,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:37,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:37,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:37,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:37,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:37,059 INFO L87 Difference]: Start difference. First operand 2958 states and 4336 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 08:55:38,315 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 08:55:40,028 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 08:55:40,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:40,295 INFO L93 Difference]: Finished difference Result 3442 states and 5051 transitions. [2022-04-06 08:55:40,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:40,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 243 [2022-04-06 08:55:40,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:40,300 INFO L225 Difference]: With dead ends: 3442 [2022-04-06 08:55:40,300 INFO L226 Difference]: Without dead ends: 3442 [2022-04-06 08:55:40,300 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 08:55:40,300 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:40,300 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 385 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-06 08:55:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-04-06 08:55:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3442. [2022-04-06 08:55:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3437 states have (on average 1.4684317718940938) internal successors, (5047), 3437 states have internal predecessors, (5047), 3 states have call successors, (3), 3 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 08:55:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5051 transitions. [2022-04-06 08:55:40,326 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5051 transitions. Word has length 243 [2022-04-06 08:55:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:40,326 INFO L478 AbstractCegarLoop]: Abstraction has 3442 states and 5051 transitions. [2022-04-06 08:55:40,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 08:55:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5051 transitions. [2022-04-06 08:55:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-06 08:55:40,330 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:40,330 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:40,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 08:55:40,330 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:40,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1100311010, now seen corresponding path program 1 times [2022-04-06 08:55:40,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:40,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794518695] [2022-04-06 08:55:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:40,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-04-06 08:55:40,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:40,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794518695] [2022-04-06 08:55:40,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794518695] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:40,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:40,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:40,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113070305] [2022-04-06 08:55:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:40,455 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:40,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:40,456 INFO L87 Difference]: Start difference. First operand 3442 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:42,436 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 08:55:43,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:44,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:45,140 INFO L93 Difference]: Finished difference Result 3920 states and 5751 transitions. [2022-04-06 08:55:45,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:45,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-04-06 08:55:45,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:45,146 INFO L225 Difference]: With dead ends: 3920 [2022-04-06 08:55:45,146 INFO L226 Difference]: Without dead ends: 3920 [2022-04-06 08:55:45,146 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 08:55:45,146 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:45,147 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:55:45,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-04-06 08:55:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2022-04-06 08:55:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3915 states have (on average 1.4679438058748404) internal successors, (5747), 3915 states have internal predecessors, (5747), 3 states have call successors, (3), 3 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 08:55:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5751 transitions. [2022-04-06 08:55:45,173 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5751 transitions. Word has length 275 [2022-04-06 08:55:45,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:45,174 INFO L478 AbstractCegarLoop]: Abstraction has 3920 states and 5751 transitions. [2022-04-06 08:55:45,174 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5751 transitions. [2022-04-06 08:55:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-06 08:55:45,178 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:45,178 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:45,178 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 08:55:45,178 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash -835349277, now seen corresponding path program 1 times [2022-04-06 08:55:45,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:45,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463040449] [2022-04-06 08:55:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:45,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:45,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-06 08:55:45,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:45,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463040449] [2022-04-06 08:55:45,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463040449] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:45,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:45,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:45,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807782530] [2022-04-06 08:55:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:45,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:45,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:45,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:45,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:45,299 INFO L87 Difference]: Start difference. First operand 3920 states and 5751 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:47,864 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 08:55:48,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:48,274 INFO L93 Difference]: Finished difference Result 4371 states and 6410 transitions. [2022-04-06 08:55:48,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:48,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-04-06 08:55:48,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:48,279 INFO L225 Difference]: With dead ends: 4371 [2022-04-06 08:55:48,280 INFO L226 Difference]: Without dead ends: 4371 [2022-04-06 08:55:48,280 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 08:55:48,280 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:48,280 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-06 08:55:48,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-04-06 08:55:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4371. [2022-04-06 08:55:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4366 states have (on average 1.467246907924874) internal successors, (6406), 4366 states have internal predecessors, (6406), 3 states have call successors, (3), 3 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 08:55:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6410 transitions. [2022-04-06 08:55:48,310 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6410 transitions. Word has length 275 [2022-04-06 08:55:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:48,310 INFO L478 AbstractCegarLoop]: Abstraction has 4371 states and 6410 transitions. [2022-04-06 08:55:48,310 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6410 transitions. [2022-04-06 08:55:48,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-04-06 08:55:48,316 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:48,316 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:48,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 08:55:48,316 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:48,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:48,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1963979722, now seen corresponding path program 1 times [2022-04-06 08:55:48,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:48,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917449379] [2022-04-06 08:55:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:48,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-04-06 08:55:48,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:48,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917449379] [2022-04-06 08:55:48,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917449379] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:48,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:48,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:48,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432131891] [2022-04-06 08:55:48,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:48,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:48,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:48,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:48,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:48,493 INFO L87 Difference]: Start difference. First operand 4371 states and 6410 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:49,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:51,252 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 08:55:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:52,022 INFO L93 Difference]: Finished difference Result 4855 states and 7128 transitions. [2022-04-06 08:55:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:52,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2022-04-06 08:55:52,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:52,028 INFO L225 Difference]: With dead ends: 4855 [2022-04-06 08:55:52,028 INFO L226 Difference]: Without dead ends: 4855 [2022-04-06 08:55:52,028 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 08:55:52,028 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:52,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 382 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-06 08:55:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2022-04-06 08:55:52,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4855. [2022-04-06 08:55:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 4850 states have (on average 1.4688659793814434) internal successors, (7124), 4850 states have internal predecessors, (7124), 3 states have call successors, (3), 3 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 08:55:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 7128 transitions. [2022-04-06 08:55:52,063 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 7128 transitions. Word has length 350 [2022-04-06 08:55:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:52,064 INFO L478 AbstractCegarLoop]: Abstraction has 4855 states and 7128 transitions. [2022-04-06 08:55:52,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 7128 transitions. [2022-04-06 08:55:52,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-04-06 08:55:52,069 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:52,069 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:52,070 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 08:55:52,070 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:52,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:52,070 INFO L85 PathProgramCache]: Analyzing trace with hash 153388337, now seen corresponding path program 1 times [2022-04-06 08:55:52,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:52,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992163297] [2022-04-06 08:55:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:52,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:52,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-04-06 08:55:52,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:52,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992163297] [2022-04-06 08:55:52,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992163297] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:52,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:52,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:52,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871272782] [2022-04-06 08:55:52,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:52,255 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:52,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:52,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:52,256 INFO L87 Difference]: Start difference. First operand 4855 states and 7128 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 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 08:55:53,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:55,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:56,692 WARN L534 Checker$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 08:55:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:56,946 INFO L93 Difference]: Finished difference Result 5339 states and 7847 transitions. [2022-04-06 08:55:56,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:56,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 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 391 [2022-04-06 08:55:56,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:56,963 INFO L225 Difference]: With dead ends: 5339 [2022-04-06 08:55:56,963 INFO L226 Difference]: Without dead ends: 5339 [2022-04-06 08:55:56,963 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 08:55:56,964 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:56,964 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:55:56,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-04-06 08:55:57,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-04-06 08:55:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5334 states have (on average 1.4703787026621673) internal successors, (7843), 5334 states have internal predecessors, (7843), 3 states have call successors, (3), 3 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 08:55:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7847 transitions. [2022-04-06 08:55:57,027 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7847 transitions. Word has length 391 [2022-04-06 08:55:57,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:57,027 INFO L478 AbstractCegarLoop]: Abstraction has 5339 states and 7847 transitions. [2022-04-06 08:55:57,027 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 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 08:55:57,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7847 transitions. [2022-04-06 08:55:57,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-04-06 08:55:57,033 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:57,033 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 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 08:55:57,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 08:55:57,034 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:57,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:57,034 INFO L85 PathProgramCache]: Analyzing trace with hash 215344654, now seen corresponding path program 1 times [2022-04-06 08:55:57,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:57,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753939163] [2022-04-06 08:55:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:57,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:57,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-04-06 08:55:57,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:57,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753939163] [2022-04-06 08:55:57,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753939163] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:57,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:57,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:55:57,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034362372] [2022-04-06 08:55:57,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:57,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:57,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:57,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:57,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:55:57,233 INFO L87 Difference]: Start difference. First operand 5339 states and 7847 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 08:55:58,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:00,717 WARN L534 Checker$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 08:56:01,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:01,104 INFO L93 Difference]: Finished difference Result 5818 states and 8548 transitions. [2022-04-06 08:56:01,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:56:01,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 398 [2022-04-06 08:56:01,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:01,112 INFO L225 Difference]: With dead ends: 5818 [2022-04-06 08:56:01,112 INFO L226 Difference]: Without dead ends: 5818 [2022-04-06 08:56:01,112 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 08:56:01,112 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:01,112 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:56:01,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2022-04-06 08:56:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 5818. [2022-04-06 08:56:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5813 states have (on average 1.469809048683984) internal successors, (8544), 5813 states have internal predecessors, (8544), 3 states have call successors, (3), 3 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 08:56:01,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8548 transitions. [2022-04-06 08:56:01,180 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8548 transitions. Word has length 398 [2022-04-06 08:56:01,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:01,180 INFO L478 AbstractCegarLoop]: Abstraction has 5818 states and 8548 transitions. [2022-04-06 08:56:01,180 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 08:56:01,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8548 transitions. [2022-04-06 08:56:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-04-06 08:56:01,187 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:01,187 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:01,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 08:56:01,188 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1038136657, now seen corresponding path program 1 times [2022-04-06 08:56:01,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:01,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235229579] [2022-04-06 08:56:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:01,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2119 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2022-04-06 08:56:01,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:01,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235229579] [2022-04-06 08:56:01,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235229579] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:01,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:01,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:56:01,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352672309] [2022-04-06 08:56:01,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:01,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:56:01,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:01,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:56:01,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:01,415 INFO L87 Difference]: Start difference. First operand 5818 states and 8548 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:03,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:05,697 WARN L534 Checker$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 08:56:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:05,984 INFO L93 Difference]: Finished difference Result 6302 states and 9269 transitions. [2022-04-06 08:56:05,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:56:05,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-04-06 08:56:05,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:05,990 INFO L225 Difference]: With dead ends: 6302 [2022-04-06 08:56:05,991 INFO L226 Difference]: Without dead ends: 6302 [2022-04-06 08:56:05,991 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 08:56:05,991 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:05,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 379 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 274 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 08:56:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2022-04-06 08:56:06,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 6302. [2022-04-06 08:56:06,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6302 states, 6297 states have (on average 1.4713355566142607) internal successors, (9265), 6297 states have internal predecessors, (9265), 3 states have call successors, (3), 3 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 08:56:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6302 states to 6302 states and 9269 transitions. [2022-04-06 08:56:06,040 INFO L78 Accepts]: Start accepts. Automaton has 6302 states and 9269 transitions. Word has length 474 [2022-04-06 08:56:06,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:06,041 INFO L478 AbstractCegarLoop]: Abstraction has 6302 states and 9269 transitions. [2022-04-06 08:56:06,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:06,041 INFO L276 IsEmpty]: Start isEmpty. Operand 6302 states and 9269 transitions. [2022-04-06 08:56:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-04-06 08:56:06,050 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:06,050 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:06,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 08:56:06,051 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:06,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1782869354, now seen corresponding path program 1 times [2022-04-06 08:56:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:06,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583568599] [2022-04-06 08:56:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:06,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 744 proven. 7 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2022-04-06 08:56:06,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:06,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583568599] [2022-04-06 08:56:06,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583568599] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:56:06,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367943775] [2022-04-06 08:56:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:06,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:56:06,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:56:06,355 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 08:56:06,356 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 08:56:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:07,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 2419 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-06 08:56:07,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:56:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2022-04-06 08:56:08,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 08:56:08,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367943775] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:08,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 08:56:08,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-04-06 08:56:08,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764475585] [2022-04-06 08:56:08,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:08,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 08:56:08,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:08,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 08:56:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:56:08,044 INFO L87 Difference]: Start difference. First operand 6302 states and 9269 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 08:56:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:08,101 INFO L93 Difference]: Finished difference Result 6786 states and 9991 transitions. [2022-04-06 08:56:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 08:56:08,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 516 [2022-04-06 08:56:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:08,108 INFO L225 Difference]: With dead ends: 6786 [2022-04-06 08:56:08,108 INFO L226 Difference]: Without dead ends: 6786 [2022-04-06 08:56:08,108 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:56:08,108 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:08,108 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 08:56:08,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2022-04-06 08:56:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 6786. [2022-04-06 08:56:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 6781 states have (on average 1.4727916236543284) internal successors, (9987), 6781 states have internal predecessors, (9987), 3 states have call successors, (3), 3 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 08:56:08,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9991 transitions. [2022-04-06 08:56:08,162 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9991 transitions. Word has length 516 [2022-04-06 08:56:08,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:08,162 INFO L478 AbstractCegarLoop]: Abstraction has 6786 states and 9991 transitions. [2022-04-06 08:56:08,163 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 08:56:08,163 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9991 transitions. [2022-04-06 08:56:08,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-04-06 08:56:08,171 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:08,171 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:08,194 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 08:56:08,387 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,SelfDestructingSolverStorable47 [2022-04-06 08:56:08,388 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:08,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash -605380239, now seen corresponding path program 1 times [2022-04-06 08:56:08,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:08,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864614916] [2022-04-06 08:56:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:08,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-04-06 08:56:08,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:08,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864614916] [2022-04-06 08:56:08,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864614916] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:08,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:08,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:08,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145695710] [2022-04-06 08:56:08,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:08,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:08,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:08,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:08,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:08,648 INFO L87 Difference]: Start difference. First operand 6786 states and 9991 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 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 08:56:10,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:12,511 WARN L534 Checker$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 08:56:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:12,966 INFO L93 Difference]: Finished difference Result 7906 states and 11579 transitions. [2022-04-06 08:56:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:12,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-04-06 08:56:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:12,973 INFO L225 Difference]: With dead ends: 7906 [2022-04-06 08:56:12,973 INFO L226 Difference]: Without dead ends: 7906 [2022-04-06 08:56:12,973 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 08:56:12,974 INFO L913 BasicCegarLoop]: 279 mSDtfsCounter, 65 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:12,974 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 683 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:56:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7906 states. [2022-04-06 08:56:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7906 to 7360. [2022-04-06 08:56:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7355 states have (on average 1.4739632902787219) internal successors, (10841), 7355 states have internal predecessors, (10841), 3 states have call successors, (3), 3 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 08:56:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 10845 transitions. [2022-04-06 08:56:13,048 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 10845 transitions. Word has length 524 [2022-04-06 08:56:13,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:13,049 INFO L478 AbstractCegarLoop]: Abstraction has 7360 states and 10845 transitions. [2022-04-06 08:56:13,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 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 08:56:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 10845 transitions. [2022-04-06 08:56:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-04-06 08:56:13,057 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:13,057 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:13,057 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 08:56:13,057 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:13,058 INFO L85 PathProgramCache]: Analyzing trace with hash -480652685, now seen corresponding path program 1 times [2022-04-06 08:56:13,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:13,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623370388] [2022-04-06 08:56:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:13,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1695 proven. 480 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-04-06 08:56:13,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:13,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623370388] [2022-04-06 08:56:13,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623370388] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:56:13,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176822854] [2022-04-06 08:56:13,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:13,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:56:13,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:56:13,815 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 08:56:13,816 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 08:56:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:14,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 42 conjunts are in the unsatisfiable core [2022-04-06 08:56:14,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:56:14,956 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:56:14,958 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 08:56:15,065 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 08:56:15,065 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 08:56:15,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 08:56:15,406 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:56:15,406 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 08:56:15,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:56:15,485 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 23 treesize of output 22 [2022-04-06 08:56:15,520 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 31 treesize of output 19 [2022-04-06 08:56:15,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-04-06 08:56:15,564 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-04-06 08:56:15,564 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 6 case distinctions, treesize of input 42 treesize of output 77 [2022-04-06 08:56:15,671 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-04-06 08:56:15,672 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 65 treesize of output 49 [2022-04-06 08:56:15,893 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:56:15,894 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 08:56:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-04-06 08:56:16,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:56:16,394 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 77 treesize of output 53 [2022-04-06 08:56:16,398 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 53 treesize of output 41 [2022-04-06 08:56:20,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-04-06 08:56:20,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176822854] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:56:20,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:56:20,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 14] total 28 [2022-04-06 08:56:20,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653758554] [2022-04-06 08:56:20,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:20,774 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:56:20,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:20,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:56:20,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=662, Unknown=1, NotChecked=0, Total=756 [2022-04-06 08:56:20,775 INFO L87 Difference]: Start difference. First operand 7360 states and 10845 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 08:56:23,707 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 08:56:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:32,501 INFO L93 Difference]: Finished difference Result 14597 states and 21552 transitions. [2022-04-06 08:56:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 08:56:32,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 524 [2022-04-06 08:56:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:32,516 INFO L225 Difference]: With dead ends: 14597 [2022-04-06 08:56:32,516 INFO L226 Difference]: Without dead ends: 14597 [2022-04-06 08:56:32,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1071 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=122, Invalid=867, Unknown=3, NotChecked=0, Total=992 [2022-04-06 08:56:32,517 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 294 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 86 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 175 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:32,517 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 1072 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 614 Invalid, 1 Unknown, 175 Unchecked, 3.5s Time] [2022-04-06 08:56:32,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14597 states. [2022-04-06 08:56:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14597 to 12608. [2022-04-06 08:56:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12608 states, 12603 states have (on average 1.4899627072919146) internal successors, (18778), 12603 states have internal predecessors, (18778), 3 states have call successors, (3), 3 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 08:56:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12608 states to 12608 states and 18782 transitions. [2022-04-06 08:56:32,638 INFO L78 Accepts]: Start accepts. Automaton has 12608 states and 18782 transitions. Word has length 524 [2022-04-06 08:56:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:32,638 INFO L478 AbstractCegarLoop]: Abstraction has 12608 states and 18782 transitions. [2022-04-06 08:56:32,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 08:56:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 12608 states and 18782 transitions. [2022-04-06 08:56:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-04-06 08:56:32,649 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:32,649 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:32,673 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 08:56:32,850 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,SelfDestructingSolverStorable49 [2022-04-06 08:56:32,850 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:32,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:32,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1163721738, now seen corresponding path program 1 times [2022-04-06 08:56:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:32,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569093110] [2022-04-06 08:56:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:32,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-04-06 08:56:33,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:33,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569093110] [2022-04-06 08:56:33,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569093110] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:33,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:33,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:33,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257463541] [2022-04-06 08:56:33,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:33,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:33,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:33,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:33,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:33,103 INFO L87 Difference]: Start difference. First operand 12608 states and 18782 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 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 08:56:35,257 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 08:56:37,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:38,676 WARN L534 Checker$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 08:56:39,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:39,169 INFO L93 Difference]: Finished difference Result 13543 states and 20037 transitions. [2022-04-06 08:56:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:39,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-04-06 08:56:39,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:39,183 INFO L225 Difference]: With dead ends: 13543 [2022-04-06 08:56:39,183 INFO L226 Difference]: Without dead ends: 13543 [2022-04-06 08:56:39,184 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 08:56:39,186 INFO L913 BasicCegarLoop]: 278 mSDtfsCounter, 63 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:39,187 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 681 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:56:39,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-04-06 08:56:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-04-06 08:56:39,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4894190378061345) internal successors, (18792), 12617 states have internal predecessors, (18792), 3 states have call successors, (3), 3 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 08:56:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18796 transitions. [2022-04-06 08:56:39,297 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18796 transitions. Word has length 525 [2022-04-06 08:56:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:39,297 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18796 transitions. [2022-04-06 08:56:39,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 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 08:56:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18796 transitions. [2022-04-06 08:56:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-04-06 08:56:39,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:39,333 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:39,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-06 08:56:39,333 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:39,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1740174604, now seen corresponding path program 1 times [2022-04-06 08:56:39,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:39,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943842617] [2022-04-06 08:56:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:39,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:39,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:39,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-04-06 08:56:39,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:39,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943842617] [2022-04-06 08:56:39,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943842617] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:39,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:39,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:39,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297315332] [2022-04-06 08:56:39,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:39,616 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:39,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:39,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:39,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:39,617 INFO L87 Difference]: Start difference. First operand 12622 states and 18796 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 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 08:56:40,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:42,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:44,755 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 08:56:46,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:46,201 INFO L93 Difference]: Finished difference Result 13543 states and 20010 transitions. [2022-04-06 08:56:46,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:46,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-04-06 08:56:46,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:46,215 INFO L225 Difference]: With dead ends: 13543 [2022-04-06 08:56:46,215 INFO L226 Difference]: Without dead ends: 13543 [2022-04-06 08:56:46,215 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 08:56:46,216 INFO L913 BasicCegarLoop]: 277 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:46,216 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 679 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 581 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 08:56:46,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-04-06 08:56:46,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-04-06 08:56:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4872790679242291) internal successors, (18765), 12617 states have internal predecessors, (18765), 3 states have call successors, (3), 3 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 08:56:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18769 transitions. [2022-04-06 08:56:46,400 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18769 transitions. Word has length 546 [2022-04-06 08:56:46,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:46,401 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18769 transitions. [2022-04-06 08:56:46,401 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 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 08:56:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18769 transitions. [2022-04-06 08:56:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-04-06 08:56:46,413 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:46,413 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:46,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-06 08:56:46,413 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:46,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:46,414 INFO L85 PathProgramCache]: Analyzing trace with hash -730527589, now seen corresponding path program 1 times [2022-04-06 08:56:46,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:46,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866144821] [2022-04-06 08:56:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:46,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:46,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-04-06 08:56:46,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:46,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866144821] [2022-04-06 08:56:46,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866144821] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:46,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:46,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393939659] [2022-04-06 08:56:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:46,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:46,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:46,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:46,655 INFO L87 Difference]: Start difference. First operand 12622 states and 18769 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 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 08:56:47,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:49,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:51,378 WARN L534 Checker$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 08:56:53,403 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 08:56:53,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:53,909 INFO L93 Difference]: Finished difference Result 13435 states and 19832 transitions. [2022-04-06 08:56:53,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:53,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 547 [2022-04-06 08:56:53,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:53,921 INFO L225 Difference]: With dead ends: 13435 [2022-04-06 08:56:53,921 INFO L226 Difference]: Without dead ends: 13435 [2022-04-06 08:56:53,921 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 08:56:53,922 INFO L913 BasicCegarLoop]: 273 mSDtfsCounter, 76 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:53,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 671 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 566 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-06 08:56:53,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13435 states. [2022-04-06 08:56:54,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13435 to 12622. [2022-04-06 08:56:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4851390980423238) internal successors, (18738), 12617 states have internal predecessors, (18738), 3 states have call successors, (3), 3 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 08:56:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18742 transitions. [2022-04-06 08:56:54,042 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18742 transitions. Word has length 547 [2022-04-06 08:56:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:54,042 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18742 transitions. [2022-04-06 08:56:54,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 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 08:56:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18742 transitions. [2022-04-06 08:56:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-04-06 08:56:54,053 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:54,054 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:54,054 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-06 08:56:54,054 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:54,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:54,054 INFO L85 PathProgramCache]: Analyzing trace with hash -811732947, now seen corresponding path program 1 times [2022-04-06 08:56:54,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:54,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330889819] [2022-04-06 08:56:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:54,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:54,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1131 proven. 34 refuted. 0 times theorem prover too weak. 1686 trivial. 0 not checked. [2022-04-06 08:56:54,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:54,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330889819] [2022-04-06 08:56:54,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330889819] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:56:54,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459751112] [2022-04-06 08:56:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:54,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:56:54,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:56:54,322 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 08:56:54,323 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 08:56:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:55,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-06 08:56:55,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:56:55,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-04-06 08:56:55,836 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-04-06 08:56:55,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-04-06 08:56:55,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-04-06 08:56:55,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-04-06 08:56:55,958 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-06 08:56:55,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 21 [2022-04-06 08:56:55,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-04-06 08:56:55,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-04-06 08:56:56,077 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 08:56:56,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2022-04-06 08:56:56,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 08:56:56,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459751112] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:56,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 08:56:56,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-04-06 08:56:56,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596590893] [2022-04-06 08:56:56,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:56,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:56:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:56,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:56:56,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 08:56:56,179 INFO L87 Difference]: Start difference. First operand 12622 states and 18742 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 08:56:57,213 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 08:56:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:57,459 INFO L93 Difference]: Finished difference Result 13322 states and 19714 transitions. [2022-04-06 08:56:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:56:57,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 549 [2022-04-06 08:56:57,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:57,474 INFO L225 Difference]: With dead ends: 13322 [2022-04-06 08:56:57,475 INFO L226 Difference]: Without dead ends: 13322 [2022-04-06 08:56:57,475 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:56:57,475 INFO L913 BasicCegarLoop]: 283 mSDtfsCounter, 66 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:57,475 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 689 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-06 08:56:57,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13322 states. [2022-04-06 08:56:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13322 to 12776. [2022-04-06 08:56:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12776 states, 12771 states have (on average 1.4858664160989743) internal successors, (18976), 12771 states have internal predecessors, (18976), 3 states have call successors, (3), 3 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 08:56:57,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12776 states to 12776 states and 18980 transitions. [2022-04-06 08:56:57,594 INFO L78 Accepts]: Start accepts. Automaton has 12776 states and 18980 transitions. Word has length 549 [2022-04-06 08:56:57,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:57,595 INFO L478 AbstractCegarLoop]: Abstraction has 12776 states and 18980 transitions. [2022-04-06 08:56:57,595 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 08:56:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 12776 states and 18980 transitions. [2022-04-06 08:56:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-04-06 08:56:57,606 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:57,606 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:57,628 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 08:56:57,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:56:57,809 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:57,809 INFO L85 PathProgramCache]: Analyzing trace with hash -802217617, now seen corresponding path program 1 times [2022-04-06 08:56:57,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:57,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349187675] [2022-04-06 08:56:57,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:57,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1096 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-04-06 08:56:58,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:58,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349187675] [2022-04-06 08:56:58,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349187675] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:58,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:58,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:58,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673640874] [2022-04-06 08:56:58,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:58,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:58,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:58,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:58,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:58,034 INFO L87 Difference]: Start difference. First operand 12776 states and 18980 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 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 08:57:01,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:03,315 WARN L534 Checker$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 08:57:03,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:03,766 INFO L93 Difference]: Finished difference Result 12889 states and 19109 transitions. [2022-04-06 08:57:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:03,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 550 [2022-04-06 08:57:03,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:03,779 INFO L225 Difference]: With dead ends: 12889 [2022-04-06 08:57:03,779 INFO L226 Difference]: Without dead ends: 12889 [2022-04-06 08:57:03,779 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 08:57:03,779 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 36 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:03,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 630 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:57:03,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12889 states. [2022-04-06 08:57:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12889 to 12622. [2022-04-06 08:57:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.484029484029484) internal successors, (18724), 12617 states have internal predecessors, (18724), 3 states have call successors, (3), 3 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 08:57:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18728 transitions. [2022-04-06 08:57:03,882 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18728 transitions. Word has length 550 [2022-04-06 08:57:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:03,882 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18728 transitions. [2022-04-06 08:57:03,882 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 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 08:57:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18728 transitions. [2022-04-06 08:57:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-04-06 08:57:03,893 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:03,893 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:03,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-06 08:57:03,893 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash 887619099, now seen corresponding path program 1 times [2022-04-06 08:57:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:03,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491910325] [2022-04-06 08:57:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:04,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1134 proven. 28 refuted. 0 times theorem prover too weak. 1717 trivial. 0 not checked. [2022-04-06 08:57:04,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:04,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491910325] [2022-04-06 08:57:04,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491910325] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:57:04,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904153728] [2022-04-06 08:57:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:04,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:57:04,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:57:04,163 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 08:57:04,164 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 08:57:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:05,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-06 08:57:05,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:57:05,300 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:57:05,300 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 08:57:05,337 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:57:05,337 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 08:57:05,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 08:57:05,731 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 36 treesize of output 24 [2022-04-06 08:57:05,747 INFO L356 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-04-06 08:57:05,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 88 [2022-04-06 08:57:05,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:05,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-04-06 08:57:05,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:05,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-04-06 08:57:05,833 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-06 08:57:05,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:05,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-04-06 08:57:05,917 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 08:57:06,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1129 proven. 220 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-04-06 08:57:06,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:57:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1124 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-04-06 08:57:06,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904153728] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:57:06,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:57:06,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-04-06 08:57:06,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750335960] [2022-04-06 08:57:06,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:06,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:57:06,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:06,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:57:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:57:06,497 INFO L87 Difference]: Start difference. First operand 12622 states and 18728 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 08:57:07,619 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 08:57:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:07,893 INFO L93 Difference]: Finished difference Result 14348 states and 21107 transitions. [2022-04-06 08:57:07,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:57:07,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 552 [2022-04-06 08:57:07,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:07,909 INFO L225 Difference]: With dead ends: 14348 [2022-04-06 08:57:07,909 INFO L226 Difference]: Without dead ends: 14348 [2022-04-06 08:57:07,909 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:57:07,910 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 117 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:07,910 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 561 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-06 08:57:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14348 states. [2022-04-06 08:57:08,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14348 to 12636. [2022-04-06 08:57:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12631 states have (on average 1.4834929934288654) internal successors, (18738), 12631 states have internal predecessors, (18738), 3 states have call successors, (3), 3 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 08:57:08,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 18742 transitions. [2022-04-06 08:57:08,025 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 18742 transitions. Word has length 552 [2022-04-06 08:57:08,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:08,025 INFO L478 AbstractCegarLoop]: Abstraction has 12636 states and 18742 transitions. [2022-04-06 08:57:08,025 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 08:57:08,026 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 18742 transitions. [2022-04-06 08:57:08,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-06 08:57:08,037 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:08,037 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:08,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-06 08:57:08,237 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:57:08,238 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:08,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:08,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1184654259, now seen corresponding path program 1 times [2022-04-06 08:57:08,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:08,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676935883] [2022-04-06 08:57:08,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:08,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:08,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-04-06 08:57:08,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:08,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676935883] [2022-04-06 08:57:08,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676935883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:08,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:08,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 08:57:08,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414172065] [2022-04-06 08:57:08,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:08,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 08:57:08,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 08:57:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:08,603 INFO L87 Difference]: Start difference. First operand 12636 states and 18742 transitions. Second operand has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 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 08:57:09,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:11,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:13,870 WARN L534 Checker$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 08:57:15,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:17,012 WARN L534 Checker$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 08:57:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:17,747 INFO L93 Difference]: Finished difference Result 18787 states and 27802 transitions. [2022-04-06 08:57:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-06 08:57:17,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-04-06 08:57:17,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:17,764 INFO L225 Difference]: With dead ends: 18787 [2022-04-06 08:57:17,764 INFO L226 Difference]: Without dead ends: 18787 [2022-04-06 08:57:17,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:57:17,765 INFO L913 BasicCegarLoop]: 327 mSDtfsCounter, 121 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 32 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:17,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 1011 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 901 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2022-04-06 08:57:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18787 states. [2022-04-06 08:57:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18787 to 13173. [2022-04-06 08:57:17,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13173 states, 13168 states have (on average 1.4772174969623328) internal successors, (19452), 13168 states have internal predecessors, (19452), 3 states have call successors, (3), 3 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 08:57:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13173 states to 13173 states and 19456 transitions. [2022-04-06 08:57:17,882 INFO L78 Accepts]: Start accepts. Automaton has 13173 states and 19456 transitions. Word has length 553 [2022-04-06 08:57:17,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:17,883 INFO L478 AbstractCegarLoop]: Abstraction has 13173 states and 19456 transitions. [2022-04-06 08:57:17,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 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 08:57:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 13173 states and 19456 transitions. [2022-04-06 08:57:17,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-06 08:57:17,896 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:17,897 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:17,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-06 08:57:17,897 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:17,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:17,897 INFO L85 PathProgramCache]: Analyzing trace with hash 338088257, now seen corresponding path program 1 times [2022-04-06 08:57:17,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:17,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110600960] [2022-04-06 08:57:17,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:17,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1109 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-04-06 08:57:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:18,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110600960] [2022-04-06 08:57:18,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110600960] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:18,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:18,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342926703] [2022-04-06 08:57:18,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:18,202 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:18,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:18,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:18,202 INFO L87 Difference]: Start difference. First operand 13173 states and 19456 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 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 08:57:19,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:22,007 WARN L534 Checker$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 08:57:24,037 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 08:57:24,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:24,484 INFO L93 Difference]: Finished difference Result 14655 states and 21598 transitions. [2022-04-06 08:57:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:24,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-04-06 08:57:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:24,500 INFO L225 Difference]: With dead ends: 14655 [2022-04-06 08:57:24,500 INFO L226 Difference]: Without dead ends: 14655 [2022-04-06 08:57:24,500 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 08:57:24,501 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 38 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:24,501 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 631 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 08:57:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14655 states. [2022-04-06 08:57:24,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14655 to 14037. [2022-04-06 08:57:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14037 states, 14032 states have (on average 1.4766248574686431) internal successors, (20720), 14032 states have internal predecessors, (20720), 3 states have call successors, (3), 3 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 08:57:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14037 states to 14037 states and 20724 transitions. [2022-04-06 08:57:24,678 INFO L78 Accepts]: Start accepts. Automaton has 14037 states and 20724 transitions. Word has length 553 [2022-04-06 08:57:24,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:24,678 INFO L478 AbstractCegarLoop]: Abstraction has 14037 states and 20724 transitions. [2022-04-06 08:57:24,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 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 08:57:24,678 INFO L276 IsEmpty]: Start isEmpty. Operand 14037 states and 20724 transitions. [2022-04-06 08:57:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-06 08:57:24,695 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:24,695 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:24,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-06 08:57:24,695 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:24,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash -34821972, now seen corresponding path program 1 times [2022-04-06 08:57:24,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:24,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504249050] [2022-04-06 08:57:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:25,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2889 trivial. 0 not checked. [2022-04-06 08:57:25,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:25,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504249050] [2022-04-06 08:57:25,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504249050] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:25,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:25,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 08:57:25,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210528401] [2022-04-06 08:57:25,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:25,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:57:25,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:57:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:57:25,237 INFO L87 Difference]: Start difference. First operand 14037 states and 20724 transitions. Second operand has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 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 08:57:26,929 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 08:57:28,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:30,802 WARN L534 Checker$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 08:57:32,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:33,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:34,289 INFO L93 Difference]: Finished difference Result 14045 states and 20734 transitions. [2022-04-06 08:57:34,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 08:57:34,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 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 553 [2022-04-06 08:57:34,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:34,304 INFO L225 Difference]: With dead ends: 14045 [2022-04-06 08:57:34,304 INFO L226 Difference]: Without dead ends: 14037 [2022-04-06 08:57:34,305 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 08:57:34,305 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 7 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:34,305 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 901 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-04-06 08:57:34,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14037 states. [2022-04-06 08:57:34,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14037 to 14037. [2022-04-06 08:57:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14037 states, 14032 states have (on average 1.4765535917901937) internal successors, (20719), 14032 states have internal predecessors, (20719), 3 states have call successors, (3), 3 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 08:57:34,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14037 states to 14037 states and 20723 transitions. [2022-04-06 08:57:34,417 INFO L78 Accepts]: Start accepts. Automaton has 14037 states and 20723 transitions. Word has length 553 [2022-04-06 08:57:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:34,417 INFO L478 AbstractCegarLoop]: Abstraction has 14037 states and 20723 transitions. [2022-04-06 08:57:34,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 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 08:57:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 14037 states and 20723 transitions. [2022-04-06 08:57:34,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-06 08:57:34,431 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:34,431 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:34,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-06 08:57:34,431 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1255221357, now seen corresponding path program 1 times [2022-04-06 08:57:34,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:34,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951049247] [2022-04-06 08:57:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:34,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:35,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1369 proven. 365 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2022-04-06 08:57:35,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:35,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951049247] [2022-04-06 08:57:35,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951049247] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:57:35,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779709799] [2022-04-06 08:57:35,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:35,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:57:35,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:57:35,402 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 08:57:35,403 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 08:57:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:36,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 112 conjunts are in the unsatisfiable core [2022-04-06 08:57:36,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:57:36,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:36,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:57:36,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:36,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:36,799 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 08:57:36,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-06 08:57:37,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 08:57:37,330 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 08:57:37,357 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-04-06 08:57:37,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 69 [2022-04-06 08:57:37,367 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-04-06 08:57:37,367 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 51 treesize of output 55 [2022-04-06 08:57:37,371 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 17 treesize of output 13 [2022-04-06 08:57:37,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-04-06 08:57:37,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-04-06 08:57:37,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:37,454 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 70 treesize of output 57 [2022-04-06 08:57:37,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:37,465 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 70 treesize of output 69 [2022-04-06 08:57:37,482 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-04-06 08:57:37,483 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 75 treesize of output 85 [2022-04-06 08:57:37,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-04-06 08:57:37,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-04-06 08:57:37,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:37,616 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 08:57:37,637 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 08:57:37,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 08:57:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:37,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2022-04-06 08:57:38,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:38,272 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 08:57:38,272 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 08:57:38,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:38,276 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 08:57:38,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:38,280 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 08:57:38,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:38,358 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 08:57:38,358 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 08:57:38,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:38,363 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 08:57:38,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:38,367 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 08:57:39,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:39,205 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 08:57:39,205 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 08:57:39,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:39,244 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 08:57:39,244 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 08:57:39,284 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-06 08:57:39,285 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 08:57:40,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,123 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 336 treesize of output 270 [2022-04-06 08:57:40,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,130 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 336 treesize of output 276 [2022-04-06 08:57:40,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:40,159 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-04-06 08:57:40,160 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 336 treesize of output 355 [2022-04-06 08:57:44,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 253 [2022-04-06 08:57:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,471 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 317 treesize of output 259 [2022-04-06 08:57:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,493 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-04-06 08:57:44,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 317 [2022-04-06 08:57:44,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 159 [2022-04-06 08:57:44,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,729 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 159 treesize of output 93 [2022-04-06 08:57:44,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,770 INFO L356 Elim1Store]: treesize reduction 115, result has 35.4 percent of original size [2022-04-06 08:57:44,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 121 treesize of output 149 [2022-04-06 08:57:44,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:44,846 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 08:57:44,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-04-06 08:57:45,027 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 08:57:45,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2022-04-06 08:57:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1207 proven. 483 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-04-06 08:57:45,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:57:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1343 proven. 139 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-04-06 08:57:47,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779709799] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:57:47,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:57:47,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 24, 12] total 44 [2022-04-06 08:57:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189649498] [2022-04-06 08:57:47,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:57:47,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-04-06 08:57:47,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-04-06 08:57:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1611, Unknown=0, NotChecked=0, Total=1892 [2022-04-06 08:57:47,987 INFO L87 Difference]: Start difference. First operand 14037 states and 20723 transitions. Second operand has 44 states, 44 states have (on average 15.727272727272727) internal successors, (692), 42 states have internal predecessors, (692), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:49,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:51,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:52,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:55,018 WARN L534 Checker$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 08:57:57,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:59,226 WARN L534 Checker$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 08:58:02,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:04,058 WARN L534 Checker$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 08:58:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:23,362 INFO L93 Difference]: Finished difference Result 78804 states and 114038 transitions. [2022-04-06 08:58:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-04-06 08:58:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 15.727272727272727) internal successors, (692), 42 states have internal predecessors, (692), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-04-06 08:58:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:23,445 INFO L225 Difference]: With dead ends: 78804 [2022-04-06 08:58:23,446 INFO L226 Difference]: Without dead ends: 78804 [2022-04-06 08:58:23,447 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1173 SyntacticMatches, 14 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13291 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=4328, Invalid=30828, Unknown=0, NotChecked=0, Total=35156 [2022-04-06 08:58:23,448 INFO L913 BasicCegarLoop]: 797 mSDtfsCounter, 4817 mSDsluCounter, 14967 mSDsCounter, 0 mSdLazyCounter, 14473 mSolverCounterSat, 850 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4817 SdHoareTripleChecker+Valid, 15764 SdHoareTripleChecker+Invalid, 20264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 14473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 4938 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:23,448 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4817 Valid, 15764 Invalid, 20264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [850 Valid, 14473 Invalid, 3 Unknown, 4938 Unchecked, 28.6s Time] [2022-04-06 08:58:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78804 states. [2022-04-06 08:58:23,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78804 to 36498. [2022-04-06 08:58:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36498 states, 36493 states have (on average 1.4889704874907517) internal successors, (54337), 36493 states have internal predecessors, (54337), 3 states have call successors, (3), 3 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 08:58:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36498 states to 36498 states and 54341 transitions. [2022-04-06 08:58:24,005 INFO L78 Accepts]: Start accepts. Automaton has 36498 states and 54341 transitions. Word has length 553 [2022-04-06 08:58:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:24,005 INFO L478 AbstractCegarLoop]: Abstraction has 36498 states and 54341 transitions. [2022-04-06 08:58:24,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 15.727272727272727) internal successors, (692), 42 states have internal predecessors, (692), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 36498 states and 54341 transitions. [2022-04-06 08:58:24,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-04-06 08:58:24,041 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:24,041 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:24,065 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 08:58:24,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-04-06 08:58:24,242 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:24,242 INFO L85 PathProgramCache]: Analyzing trace with hash 570923016, now seen corresponding path program 1 times [2022-04-06 08:58:24,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:24,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041571660] [2022-04-06 08:58:24,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:24,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 1307 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-04-06 08:58:24,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:24,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041571660] [2022-04-06 08:58:24,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041571660] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:24,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:24,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:24,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143330062] [2022-04-06 08:58:24,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:24,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:24,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:24,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:24,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:24,458 INFO L87 Difference]: Start difference. First operand 36498 states and 54341 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 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 08:58:27,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:29,868 WARN L534 Checker$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 08:58:30,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:30,370 INFO L93 Difference]: Finished difference Result 38204 states and 56480 transitions. [2022-04-06 08:58:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:30,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 556 [2022-04-06 08:58:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:30,411 INFO L225 Difference]: With dead ends: 38204 [2022-04-06 08:58:30,412 INFO L226 Difference]: Without dead ends: 38204 [2022-04-06 08:58:30,412 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 08:58:30,412 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 70 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:30,412 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 667 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 563 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:58:30,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38204 states. [2022-04-06 08:58:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38204 to 36498. [2022-04-06 08:58:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36498 states, 36493 states have (on average 1.4871893239799414) internal successors, (54272), 36493 states have internal predecessors, (54272), 3 states have call successors, (3), 3 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 08:58:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36498 states to 36498 states and 54276 transitions. [2022-04-06 08:58:30,914 INFO L78 Accepts]: Start accepts. Automaton has 36498 states and 54276 transitions. Word has length 556 [2022-04-06 08:58:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:30,931 INFO L478 AbstractCegarLoop]: Abstraction has 36498 states and 54276 transitions. [2022-04-06 08:58:30,932 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 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 08:58:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 36498 states and 54276 transitions. [2022-04-06 08:58:30,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-04-06 08:58:30,968 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:30,969 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:30,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-06 08:58:30,969 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:30,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:30,970 INFO L85 PathProgramCache]: Analyzing trace with hash -513346673, now seen corresponding path program 1 times [2022-04-06 08:58:30,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:30,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558882266] [2022-04-06 08:58:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:30,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2869 backedges. 1317 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-04-06 08:58:31,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:31,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558882266] [2022-04-06 08:58:31,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558882266] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:31,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:31,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744624807] [2022-04-06 08:58:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:31,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:31,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:31,398 INFO L87 Difference]: Start difference. First operand 36498 states and 54276 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 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 08:58:33,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:35,231 WARN L534 Checker$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 08:58:37,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:38,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:38,426 INFO L93 Difference]: Finished difference Result 37980 states and 56051 transitions. [2022-04-06 08:58:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:38,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 557 [2022-04-06 08:58:38,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:38,468 INFO L225 Difference]: With dead ends: 37980 [2022-04-06 08:58:38,469 INFO L226 Difference]: Without dead ends: 37980 [2022-04-06 08:58:38,469 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 08:58:38,469 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 59 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:38,469 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 657 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 527 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 08:58:38,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37980 states. [2022-04-06 08:58:38,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37980 to 36498. [2022-04-06 08:58:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36498 states, 36493 states have (on average 1.4854081604691312) internal successors, (54207), 36493 states have internal predecessors, (54207), 3 states have call successors, (3), 3 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 08:58:38,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36498 states to 36498 states and 54211 transitions. [2022-04-06 08:58:38,813 INFO L78 Accepts]: Start accepts. Automaton has 36498 states and 54211 transitions. Word has length 557 [2022-04-06 08:58:38,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:38,813 INFO L478 AbstractCegarLoop]: Abstraction has 36498 states and 54211 transitions. [2022-04-06 08:58:38,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 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 08:58:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand 36498 states and 54211 transitions. [2022-04-06 08:58:38,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-04-06 08:58:38,848 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:38,849 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:38,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-06 08:58:38,849 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:38,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1280817646, now seen corresponding path program 1 times [2022-04-06 08:58:38,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:38,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330591359] [2022-04-06 08:58:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:38,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:39,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 1093 proven. 0 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2022-04-06 08:58:39,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:39,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330591359] [2022-04-06 08:58:39,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330591359] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:39,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:39,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:39,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237404126] [2022-04-06 08:58:39,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:39,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:39,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:39,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:39,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:39,052 INFO L87 Difference]: Start difference. First operand 36498 states and 54211 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 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 08:58:41,866 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 08:58:42,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:44,718 WARN L534 Checker$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 08:58:45,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:45,170 INFO L93 Difference]: Finished difference Result 38745 states and 57171 transitions. [2022-04-06 08:58:45,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:45,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 557 [2022-04-06 08:58:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:45,266 INFO L225 Difference]: With dead ends: 38745 [2022-04-06 08:58:45,267 INFO L226 Difference]: Without dead ends: 38745 [2022-04-06 08:58:45,267 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:45,268 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 14 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:45,268 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 599 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:58:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38745 states. [2022-04-06 08:58:45,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38745 to 38220. [2022-04-06 08:58:45,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38220 states, 38215 states have (on average 1.478555541017925) internal successors, (56503), 38215 states have internal predecessors, (56503), 3 states have call successors, (3), 3 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 08:58:45,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38220 states to 38220 states and 56507 transitions. [2022-04-06 08:58:45,649 INFO L78 Accepts]: Start accepts. Automaton has 38220 states and 56507 transitions. Word has length 557 [2022-04-06 08:58:45,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:45,649 INFO L478 AbstractCegarLoop]: Abstraction has 38220 states and 56507 transitions. [2022-04-06 08:58:45,649 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 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 08:58:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 38220 states and 56507 transitions. [2022-04-06 08:58:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-04-06 08:58:45,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:45,684 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:45,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-06 08:58:45,684 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1707958271, now seen corresponding path program 1 times [2022-04-06 08:58:45,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:45,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693623968] [2022-04-06 08:58:45,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:45,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:47,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1202 proven. 1422 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-04-06 08:58:47,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693623968] [2022-04-06 08:58:47,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693623968] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:58:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729973019] [2022-04-06 08:58:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:47,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:58:47,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:58:47,481 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 08:58:47,482 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 08:58:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:48,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 32 conjunts are in the unsatisfiable core [2022-04-06 08:58:48,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:58:49,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-04-06 08:58:49,175 INFO L356 Elim1Store]: treesize reduction 49, result has 46.7 percent of original size [2022-04-06 08:58:49,175 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 36 treesize of output 57 [2022-04-06 08:58:49,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:58:49,179 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 08:58:49,187 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:58:49,187 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 57 treesize of output 50 [2022-04-06 08:58:49,239 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 66 treesize of output 48 [2022-04-06 08:58:49,241 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 48 treesize of output 30 [2022-04-06 08:58:49,314 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 08:58:49,363 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 08:58:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1586 proven. 26 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-04-06 08:58:49,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:58:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1586 proven. 26 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-04-06 08:58:50,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729973019] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:58:50,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:58:50,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 8, 8] total 32 [2022-04-06 08:58:50,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455972866] [2022-04-06 08:58:50,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:58:50,248 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-04-06 08:58:50,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:50,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-04-06 08:58:50,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2022-04-06 08:58:50,249 INFO L87 Difference]: Start difference. First operand 38220 states and 56507 transitions. Second operand has 32 states, 32 states have (on average 19.71875) internal successors, (631), 31 states have internal predecessors, (631), 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 08:58:52,273 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 08:59:31,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:31,642 INFO L93 Difference]: Finished difference Result 673724 states and 955828 transitions. [2022-04-06 08:59:31,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-04-06 08:59:31,643 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 19.71875) internal successors, (631), 31 states have internal predecessors, (631), 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 557 [2022-04-06 08:59:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:32,928 INFO L225 Difference]: With dead ends: 673724 [2022-04-06 08:59:32,928 INFO L226 Difference]: Without dead ends: 673668 [2022-04-06 08:59:32,942 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1532 GetRequests, 1210 SyntacticMatches, 3 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41876 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=12161, Invalid=90559, Unknown=0, NotChecked=0, Total=102720 [2022-04-06 08:59:32,944 INFO L913 BasicCegarLoop]: 1294 mSDtfsCounter, 12041 mSDsluCounter, 18201 mSDsCounter, 0 mSdLazyCounter, 19946 mSolverCounterSat, 2705 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12041 SdHoareTripleChecker+Valid, 19495 SdHoareTripleChecker+Invalid, 23611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2705 IncrementalHoareTripleChecker+Valid, 19946 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 959 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:32,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12041 Valid, 19495 Invalid, 23611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2705 Valid, 19946 Invalid, 1 Unknown, 959 Unchecked, 22.4s Time] [2022-04-06 08:59:33,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673668 states. [2022-04-06 08:59:39,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673668 to 396446. [2022-04-06 08:59:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396446 states, 396441 states have (on average 1.4578815006520516) internal successors, (577964), 396441 states have internal predecessors, (577964), 3 states have call successors, (3), 3 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 08:59:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396446 states to 396446 states and 577968 transitions. [2022-04-06 08:59:41,009 INFO L78 Accepts]: Start accepts. Automaton has 396446 states and 577968 transitions. Word has length 557 [2022-04-06 08:59:41,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:41,009 INFO L478 AbstractCegarLoop]: Abstraction has 396446 states and 577968 transitions. [2022-04-06 08:59:41,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 19.71875) internal successors, (631), 31 states have internal predecessors, (631), 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 08:59:41,010 INFO L276 IsEmpty]: Start isEmpty. Operand 396446 states and 577968 transitions. [2022-04-06 08:59:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-04-06 08:59:41,399 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:41,400 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:41,425 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 08:59:41,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:59:41,602 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash -861390349, now seen corresponding path program 1 times [2022-04-06 08:59:41,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:41,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582402399] [2022-04-06 08:59:41,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:41,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2922 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-04-06 08:59:41,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:41,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582402399] [2022-04-06 08:59:41,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582402399] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:41,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:41,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:41,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642332362] [2022-04-06 08:59:41,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:41,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:41,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:41,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:41,994 INFO L87 Difference]: Start difference. First operand 396446 states and 577968 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 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 08:59:43,739 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 08:59:45,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:48,752 WARN L534 Checker$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 08:59:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:50,473 INFO L93 Difference]: Finished difference Result 417457 states and 604545 transitions. [2022-04-06 08:59:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:59:50,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-04-06 08:59:50,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:51,087 INFO L225 Difference]: With dead ends: 417457 [2022-04-06 08:59:51,087 INFO L226 Difference]: Without dead ends: 417457 [2022-04-06 08:59:51,087 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 08:59:51,088 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 54 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:51,088 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 662 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 545 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-06 08:59:51,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417457 states. [2022-04-06 08:59:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417457 to 396110. [2022-04-06 08:59:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396110 states, 396105 states have (on average 1.4552580755102813) internal successors, (576435), 396105 states have internal predecessors, (576435), 3 states have call successors, (3), 3 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 08:59:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396110 states to 396110 states and 576439 transitions. [2022-04-06 08:59:56,747 INFO L78 Accepts]: Start accepts. Automaton has 396110 states and 576439 transitions. Word has length 558 [2022-04-06 08:59:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:56,748 INFO L478 AbstractCegarLoop]: Abstraction has 396110 states and 576439 transitions. [2022-04-06 08:59:56,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 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 08:59:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 396110 states and 576439 transitions. [2022-04-06 08:59:57,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-04-06 08:59:57,123 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:57,123 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:57,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-06 08:59:57,123 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:57,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash 627084374, now seen corresponding path program 1 times [2022-04-06 08:59:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:57,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093521068] [2022-04-06 08:59:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:57,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:57,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 1121 proven. 0 refuted. 0 times theorem prover too weak. 1786 trivial. 0 not checked. [2022-04-06 08:59:57,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:57,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093521068] [2022-04-06 08:59:57,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093521068] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:57,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:57,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:57,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445747759] [2022-04-06 08:59:57,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:57,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:57,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:57,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:57,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:57,545 INFO L87 Difference]: Start difference. First operand 396110 states and 576439 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 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 08:59:58,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:00,846 WARN L534 Checker$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 09:00:02,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:04,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:06,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:06,039 INFO L93 Difference]: Finished difference Result 457298 states and 663509 transitions. [2022-04-06 09:00:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:00:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 559 [2022-04-06 09:00:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:06,665 INFO L225 Difference]: With dead ends: 457298 [2022-04-06 09:00:06,665 INFO L226 Difference]: Without dead ends: 457298 [2022-04-06 09:00:06,665 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 09:00:06,665 INFO L913 BasicCegarLoop]: 264 mSDtfsCounter, 49 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:06,665 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 653 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 09:00:07,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457298 states. [2022-04-06 09:00:11,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457298 to 438683. [2022-04-06 09:00:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438683 states, 438678 states have (on average 1.4558970360948122) internal successors, (638670), 438678 states have internal predecessors, (638670), 3 states have call successors, (3), 3 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 09:00:13,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438683 states to 438683 states and 638674 transitions. [2022-04-06 09:00:13,137 INFO L78 Accepts]: Start accepts. Automaton has 438683 states and 638674 transitions. Word has length 559 [2022-04-06 09:00:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:13,137 INFO L478 AbstractCegarLoop]: Abstraction has 438683 states and 638674 transitions. [2022-04-06 09:00:13,137 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 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 09:00:13,137 INFO L276 IsEmpty]: Start isEmpty. Operand 438683 states and 638674 transitions. [2022-04-06 09:00:13,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-04-06 09:00:13,858 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:13,859 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:13,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-06 09:00:13,859 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:13,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash -756343644, now seen corresponding path program 1 times [2022-04-06 09:00:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:13,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508961662] [2022-04-06 09:00:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:13,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2894 backedges. 1647 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2022-04-06 09:00:14,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:14,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508961662] [2022-04-06 09:00:14,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508961662] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:14,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:14,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025173754] [2022-04-06 09:00:14,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:14,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:14,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:14,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:14,064 INFO L87 Difference]: Start difference. First operand 438683 states and 638674 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 1 states have call successors, (3), 2 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 09:00:15,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:17,445 WARN L534 Checker$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 09:00:19,086 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 09:00:20,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:20,696 INFO L93 Difference]: Finished difference Result 444175 states and 638730 transitions. [2022-04-06 09:00:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:20,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 559 [2022-04-06 09:00:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:21,305 INFO L225 Difference]: With dead ends: 444175 [2022-04-06 09:00:21,305 INFO L226 Difference]: Without dead ends: 444175 [2022-04-06 09:00:21,305 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 09:00:21,305 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 166 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:21,305 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 237 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 236 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 09:00:21,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444175 states. [2022-04-06 09:00:25,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444175 to 441791. [2022-04-06 09:00:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441791 states, 441786 states have (on average 1.4403851638576144) internal successors, (636342), 441786 states have internal predecessors, (636342), 3 states have call successors, (3), 3 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 09:00:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441791 states to 441791 states and 636346 transitions. [2022-04-06 09:00:27,935 INFO L78 Accepts]: Start accepts. Automaton has 441791 states and 636346 transitions. Word has length 559 [2022-04-06 09:00:27,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:27,935 INFO L478 AbstractCegarLoop]: Abstraction has 441791 states and 636346 transitions. [2022-04-06 09:00:27,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 1 states have call successors, (3), 2 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 09:00:27,935 INFO L276 IsEmpty]: Start isEmpty. Operand 441791 states and 636346 transitions. [2022-04-06 09:00:28,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2022-04-06 09:00:28,644 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:28,644 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:28,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-06 09:00:28,644 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:28,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:28,644 INFO L85 PathProgramCache]: Analyzing trace with hash -557673270, now seen corresponding path program 1 times [2022-04-06 09:00:28,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:28,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338893945] [2022-04-06 09:00:28,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:28,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:29,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:29,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1574 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2022-04-06 09:00:29,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:29,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338893945] [2022-04-06 09:00:29,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338893945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:29,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:29,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-06 09:00:29,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567702432] [2022-04-06 09:00:29,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:29,449 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-06 09:00:29,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:29,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-06 09:00:29,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-06 09:00:29,476 INFO L87 Difference]: Start difference. First operand 441791 states and 636346 transitions. Second operand has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)