/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.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:14:54,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:14:54,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:14:54,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:14:54,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:14:54,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:14:54,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:14:54,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:14:54,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:14:54,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:14:54,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:14:54,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:14:54,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:14:54,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:14:54,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:14:54,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:14:54,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:14:54,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:14:54,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:14:54,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:14:54,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:14:54,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:14:54,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:14:54,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:14:54,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 20:14:54,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 20:14:54,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 20:14:54,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 20:14:54,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 20:14:54,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 20:14:54,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 20:14:54,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 20:14:54,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 20:14:54,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 20:14:54,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 20:14:54,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 20:14:54,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 20:14:54,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 20:14:54,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:14:54,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:14:54,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:14:54,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 20:14:54,295 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:14:54,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:14:54,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:14:54,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 20:14:54,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:14:54,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 20:14:54,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:14:54,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:14:54,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:14:54,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:14:54,297 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:14:54,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:14:54,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:14:54,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:14:54,299 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:14:54,299 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:14:54,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:14:54,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:14:54,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:14:54,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:14:54,511 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:14:54,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-02-23 20:14:54,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181aa193c/b4c34a6f3bba40bcb221806963a7f1c7/FLAG5a89283e3 [2022-02-23 20:14:55,010 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:14:55,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-02-23 20:14:55,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181aa193c/b4c34a6f3bba40bcb221806963a7f1c7/FLAG5a89283e3 [2022-02-23 20:14:55,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181aa193c/b4c34a6f3bba40bcb221806963a7f1c7 [2022-02-23 20:14:55,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:14:55,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:14:55,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:14:55,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:14:55,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:14:55,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:14:55" (1/1) ... [2022-02-23 20:14:55,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168279e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:55, skipping insertion in model container [2022-02-23 20:14:55,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:14:55" (1/1) ... [2022-02-23 20:14:55,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:14:55,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:14:55,926 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.16.i.cil-2.c[77660,77673] [2022-02-23 20:14:55,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:14:55,950 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:14:56,071 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.16.i.cil-2.c[77660,77673] [2022-02-23 20:14:56,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:14:56,089 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:14:56,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56 WrapperNode [2022-02-23 20:14:56,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:14:56,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:14:56,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:14:56,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:14:56,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:14:56,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:14:56,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:14:56,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:14:56,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (1/1) ... [2022-02-23 20:14:56,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:14:56,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:14:56,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 20:14:56,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 20:14:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:14:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:14:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:14:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-23 20:14:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-23 20:14:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:14:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 20:14:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 20:14:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 20:14:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:14:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 20:14:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 20:14:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:14:56,460 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:14:56,461 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:14:57,065 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 20:14:57,392 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-23 20:14:57,393 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-23 20:14:57,401 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:14:57,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:14:57,407 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 20:14:57,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:57 BoogieIcfgContainer [2022-02-23 20:14:57,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:14:57,409 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:14:57,409 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:14:57,409 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:14:57,411 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:57" (1/1) ... [2022-02-23 20:14:57,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:14:57 BasicIcfg [2022-02-23 20:14:57,439 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:14:57,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:14:57,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:14:57,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:14:57,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:14:55" (1/4) ... [2022-02-23 20:14:57,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b00aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:14:57, skipping insertion in model container [2022-02-23 20:14:57,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:56" (2/4) ... [2022-02-23 20:14:57,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b00aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:14:57, skipping insertion in model container [2022-02-23 20:14:57,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:57" (3/4) ... [2022-02-23 20:14:57,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b00aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:14:57, skipping insertion in model container [2022-02-23 20:14:57,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:14:57" (4/4) ... [2022-02-23 20:14:57,444 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.cJordan [2022-02-23 20:14:57,447 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:14:57,447 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:14:57,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:14:57,477 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 20:14:57,477 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:14:57,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 20:14:57,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-23 20:14:57,495 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:57,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:57,496 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:57,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:57,499 INFO L85 PathProgramCache]: Analyzing trace with hash -359617006, now seen corresponding path program 1 times [2022-02-23 20:14:57,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:57,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122992552] [2022-02-23 20:14:57,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:57,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:57,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:57,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:57,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122992552] [2022-02-23 20:14:57,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122992552] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:57,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:57,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:57,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931842893] [2022-02-23 20:14:57,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:57,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:57,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:57,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:57,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:57,993 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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 9.4) 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) [2022-02-23 20:15:00,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:00,235 INFO L93 Difference]: Finished difference Result 200 states and 330 transitions. [2022-02-23 20:15:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:00,237 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 [2022-02-23 20:15:00,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:00,247 INFO L225 Difference]: With dead ends: 200 [2022-02-23 20:15:00,247 INFO L226 Difference]: Without dead ends: 179 [2022-02-23 20:15:00,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:00,256 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 34 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:00,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 661 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 20:15:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-02-23 20:15:00,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2022-02-23 20:15:00,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5796178343949046) internal successors, (248), 157 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:00,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 252 transitions. [2022-02-23 20:15:00,312 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 252 transitions. Word has length 51 [2022-02-23 20:15:00,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:00,312 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 252 transitions. [2022-02-23 20:15:00,312 INFO L471 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) [2022-02-23 20:15:00,312 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 252 transitions. [2022-02-23 20:15:00,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:15:00,314 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:00,314 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:00,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:15:00,314 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:00,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:00,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1602858961, now seen corresponding path program 1 times [2022-02-23 20:15:00,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:00,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206122601] [2022-02-23 20:15:00,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:00,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:00,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:00,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206122601] [2022-02-23 20:15:00,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206122601] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:00,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:00,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:00,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131033759] [2022-02-23 20:15:00,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:00,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:00,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:00,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:00,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:00,556 INFO L87 Difference]: Start difference. First operand 162 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:01,911 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 [] [2022-02-23 20:15:03,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:05,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:05,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:05,686 INFO L93 Difference]: Finished difference Result 288 states and 450 transitions. [2022-02-23 20:15:05,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:05,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-23 20:15:05,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:05,688 INFO L225 Difference]: With dead ends: 288 [2022-02-23 20:15:05,688 INFO L226 Difference]: Without dead ends: 288 [2022-02-23 20:15:05,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:05,689 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 161 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:05,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 716 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 657 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-23 20:15:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-02-23 20:15:05,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 178. [2022-02-23 20:15:05,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.5780346820809248) internal successors, (273), 173 states have internal predecessors, (273), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 277 transitions. [2022-02-23 20:15:05,696 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 277 transitions. Word has length 64 [2022-02-23 20:15:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:05,696 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 277 transitions. [2022-02-23 20:15:05,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 277 transitions. [2022-02-23 20:15:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:05,698 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:05,698 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:05,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 20:15:05,698 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:05,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:05,699 INFO L85 PathProgramCache]: Analyzing trace with hash -704515848, now seen corresponding path program 1 times [2022-02-23 20:15:05,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:05,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065832524] [2022-02-23 20:15:05,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:05,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:05,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:05,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065832524] [2022-02-23 20:15:05,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065832524] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:05,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:05,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:05,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525572723] [2022-02-23 20:15:05,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:05,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:05,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:05,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:05,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:05,923 INFO L87 Difference]: Start difference. First operand 178 states and 277 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:07,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:09,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:09,195 INFO L93 Difference]: Finished difference Result 303 states and 473 transitions. [2022-02-23 20:15:09,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:09,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:15:09,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:09,196 INFO L225 Difference]: With dead ends: 303 [2022-02-23 20:15:09,196 INFO L226 Difference]: Without dead ends: 303 [2022-02-23 20:15:09,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:09,197 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 166 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:09,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-23 20:15:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-02-23 20:15:09,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 189. [2022-02-23 20:15:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.559782608695652) internal successors, (287), 184 states have internal predecessors, (287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 291 transitions. [2022-02-23 20:15:09,205 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 291 transitions. Word has length 65 [2022-02-23 20:15:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:09,206 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 291 transitions. [2022-02-23 20:15:09,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 291 transitions. [2022-02-23 20:15:09,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:09,207 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:09,208 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:09,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 20:15:09,208 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:09,208 INFO L85 PathProgramCache]: Analyzing trace with hash 257305816, now seen corresponding path program 1 times [2022-02-23 20:15:09,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:09,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50786445] [2022-02-23 20:15:09,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:09,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:09,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:09,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50786445] [2022-02-23 20:15:09,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50786445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:09,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:09,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:09,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634052952] [2022-02-23 20:15:09,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:09,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:09,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:09,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:09,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:09,304 INFO L87 Difference]: Start difference. First operand 189 states and 291 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:12,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:12,303 INFO L93 Difference]: Finished difference Result 303 states and 470 transitions. [2022-02-23 20:15:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:12,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:15:12,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:12,305 INFO L225 Difference]: With dead ends: 303 [2022-02-23 20:15:12,305 INFO L226 Difference]: Without dead ends: 303 [2022-02-23 20:15:12,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:12,306 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 164 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:12,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-23 20:15:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-02-23 20:15:12,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 190. [2022-02-23 20:15:12,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.545945945945946) internal successors, (286), 185 states have internal predecessors, (286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:12,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 290 transitions. [2022-02-23 20:15:12,312 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 290 transitions. Word has length 65 [2022-02-23 20:15:12,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:12,312 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 290 transitions. [2022-02-23 20:15:12,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:12,313 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 290 transitions. [2022-02-23 20:15:12,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:12,314 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:12,314 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:12,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 20:15:12,314 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:12,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1845016728, now seen corresponding path program 1 times [2022-02-23 20:15:12,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:12,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942457058] [2022-02-23 20:15:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:12,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:12,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:12,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:12,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942457058] [2022-02-23 20:15:12,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942457058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:12,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:12,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:12,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625479258] [2022-02-23 20:15:12,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:12,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:12,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:12,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:12,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:12,401 INFO L87 Difference]: Start difference. First operand 190 states and 290 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:16,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:17,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:17,136 INFO L93 Difference]: Finished difference Result 204 states and 307 transitions. [2022-02-23 20:15:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:17,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:15:17,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:17,138 INFO L225 Difference]: With dead ends: 204 [2022-02-23 20:15:17,138 INFO L226 Difference]: Without dead ends: 204 [2022-02-23 20:15:17,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:17,138 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:17,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 543 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-23 20:15:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-02-23 20:15:17,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 190. [2022-02-23 20:15:17,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5405405405405406) internal successors, (285), 185 states have internal predecessors, (285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 289 transitions. [2022-02-23 20:15:17,143 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 289 transitions. Word has length 65 [2022-02-23 20:15:17,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:17,144 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 289 transitions. [2022-02-23 20:15:17,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 289 transitions. [2022-02-23 20:15:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:17,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:17,145 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:17,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 20:15:17,145 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash -87401096, now seen corresponding path program 1 times [2022-02-23 20:15:17,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:17,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334657007] [2022-02-23 20:15:17,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:17,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:17,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:17,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334657007] [2022-02-23 20:15:17,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334657007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:17,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:17,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:17,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364056036] [2022-02-23 20:15:17,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:17,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:17,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:17,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:17,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:17,282 INFO L87 Difference]: Start difference. First operand 190 states and 289 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:18,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:20,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:21,351 INFO L93 Difference]: Finished difference Result 203 states and 305 transitions. [2022-02-23 20:15:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:21,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:15:21,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:21,352 INFO L225 Difference]: With dead ends: 203 [2022-02-23 20:15:21,352 INFO L226 Difference]: Without dead ends: 203 [2022-02-23 20:15:21,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:21,353 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:21,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:15:21,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-02-23 20:15:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 190. [2022-02-23 20:15:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5351351351351352) internal successors, (284), 185 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:21,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 288 transitions. [2022-02-23 20:15:21,358 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 288 transitions. Word has length 65 [2022-02-23 20:15:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:21,358 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 288 transitions. [2022-02-23 20:15:21,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 288 transitions. [2022-02-23 20:15:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 20:15:21,360 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:21,360 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:21,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 20:15:21,360 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:21,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:21,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1229949233, now seen corresponding path program 1 times [2022-02-23 20:15:21,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:21,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264054596] [2022-02-23 20:15:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:21,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:21,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:21,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:21,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264054596] [2022-02-23 20:15:21,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264054596] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:21,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:21,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:21,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518973379] [2022-02-23 20:15:21,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:21,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:21,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:21,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:21,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:21,458 INFO L87 Difference]: Start difference. First operand 190 states and 288 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:22,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:24,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:26,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:26,810 INFO L93 Difference]: Finished difference Result 303 states and 465 transitions. [2022-02-23 20:15:26,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:26,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-23 20:15:26,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:26,812 INFO L225 Difference]: With dead ends: 303 [2022-02-23 20:15:26,812 INFO L226 Difference]: Without dead ends: 303 [2022-02-23 20:15:26,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:26,813 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 162 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:26,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-23 20:15:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-02-23 20:15:26,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 191. [2022-02-23 20:15:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.521505376344086) internal successors, (283), 186 states have internal predecessors, (283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 287 transitions. [2022-02-23 20:15:26,817 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 287 transitions. Word has length 66 [2022-02-23 20:15:26,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:26,818 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 287 transitions. [2022-02-23 20:15:26,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 287 transitions. [2022-02-23 20:15:26,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:15:26,818 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:26,819 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:26,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 20:15:26,819 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:26,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:26,819 INFO L85 PathProgramCache]: Analyzing trace with hash -506858700, now seen corresponding path program 1 times [2022-02-23 20:15:26,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:26,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949696789] [2022-02-23 20:15:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:26,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:26,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:26,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949696789] [2022-02-23 20:15:26,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949696789] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:26,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:26,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:26,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765813227] [2022-02-23 20:15:26,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:26,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:26,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:26,905 INFO L87 Difference]: Start difference. First operand 191 states and 287 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:28,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:31,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:31,194 INFO L93 Difference]: Finished difference Result 204 states and 303 transitions. [2022-02-23 20:15:31,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:31,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-23 20:15:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:31,195 INFO L225 Difference]: With dead ends: 204 [2022-02-23 20:15:31,195 INFO L226 Difference]: Without dead ends: 204 [2022-02-23 20:15:31,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:31,196 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:31,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-23 20:15:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-02-23 20:15:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-02-23 20:15:31,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5161290322580645) internal successors, (282), 186 states have internal predecessors, (282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 286 transitions. [2022-02-23 20:15:31,200 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 286 transitions. Word has length 67 [2022-02-23 20:15:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:31,200 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 286 transitions. [2022-02-23 20:15:31,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 286 transitions. [2022-02-23 20:15:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:15:31,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:31,201 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:31,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 20:15:31,201 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:31,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash -952112884, now seen corresponding path program 1 times [2022-02-23 20:15:31,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:31,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053904077] [2022-02-23 20:15:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:31,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:31,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053904077] [2022-02-23 20:15:31,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053904077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:31,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:31,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:31,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103237545] [2022-02-23 20:15:31,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:31,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:31,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:31,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:31,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:31,327 INFO L87 Difference]: Start difference. First operand 191 states and 286 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) [2022-02-23 20:15:33,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:35,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:35,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:35,959 INFO L93 Difference]: Finished difference Result 194 states and 289 transitions. [2022-02-23 20:15:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:35,959 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 [2022-02-23 20:15:35,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:35,960 INFO L225 Difference]: With dead ends: 194 [2022-02-23 20:15:35,960 INFO L226 Difference]: Without dead ends: 194 [2022-02-23 20:15:35,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:35,961 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:35,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 559 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:15:35,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-02-23 20:15:35,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2022-02-23 20:15:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.510752688172043) internal successors, (281), 186 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 285 transitions. [2022-02-23 20:15:35,971 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 285 transitions. Word has length 68 [2022-02-23 20:15:35,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:35,971 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 285 transitions. [2022-02-23 20:15:35,971 INFO L471 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) [2022-02-23 20:15:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 285 transitions. [2022-02-23 20:15:35,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:15:35,972 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:35,972 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:35,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 20:15:35,973 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1316823101, now seen corresponding path program 1 times [2022-02-23 20:15:35,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:35,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047869255] [2022-02-23 20:15:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:35,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:36,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:36,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:36,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047869255] [2022-02-23 20:15:36,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047869255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:36,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:36,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:36,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580191367] [2022-02-23 20:15:36,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:36,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:36,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:36,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:36,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:36,102 INFO L87 Difference]: Start difference. First operand 191 states and 285 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) [2022-02-23 20:15:38,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:39,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:41,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:42,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:42,170 INFO L93 Difference]: Finished difference Result 320 states and 486 transitions. [2022-02-23 20:15:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:42,171 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 [2022-02-23 20:15:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:42,172 INFO L225 Difference]: With dead ends: 320 [2022-02-23 20:15:42,172 INFO L226 Difference]: Without dead ends: 320 [2022-02-23 20:15:42,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:42,173 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 136 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:42,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:15:42,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-23 20:15:42,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 234. [2022-02-23 20:15:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.554585152838428) internal successors, (356), 229 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 360 transitions. [2022-02-23 20:15:42,180 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 360 transitions. Word has length 68 [2022-02-23 20:15:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:42,180 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 360 transitions. [2022-02-23 20:15:42,180 INFO L471 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) [2022-02-23 20:15:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 360 transitions. [2022-02-23 20:15:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 20:15:42,181 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:42,183 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:42,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 20:15:42,184 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:42,184 INFO L85 PathProgramCache]: Analyzing trace with hash 381885929, now seen corresponding path program 1 times [2022-02-23 20:15:42,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:42,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939556217] [2022-02-23 20:15:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:42,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:42,300 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:42,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:42,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939556217] [2022-02-23 20:15:42,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939556217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:42,300 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:42,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:42,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500568787] [2022-02-23 20:15:42,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:42,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:42,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:42,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:42,302 INFO L87 Difference]: Start difference. First operand 234 states and 360 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:43,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:45,296 INFO L93 Difference]: Finished difference Result 276 states and 420 transitions. [2022-02-23 20:15:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:45,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-23 20:15:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:45,298 INFO L225 Difference]: With dead ends: 276 [2022-02-23 20:15:45,298 INFO L226 Difference]: Without dead ends: 276 [2022-02-23 20:15:45,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:45,298 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 30 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:45,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 559 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-23 20:15:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-02-23 20:15:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 256. [2022-02-23 20:15:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5537848605577689) internal successors, (390), 251 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 394 transitions. [2022-02-23 20:15:45,303 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 394 transitions. Word has length 69 [2022-02-23 20:15:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:45,303 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 394 transitions. [2022-02-23 20:15:45,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 394 transitions. [2022-02-23 20:15:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-23 20:15:45,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:45,304 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:45,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 20:15:45,304 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:45,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:45,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2053364893, now seen corresponding path program 1 times [2022-02-23 20:15:45,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:45,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412566566] [2022-02-23 20:15:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:45,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:45,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:45,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412566566] [2022-02-23 20:15:45,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412566566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:45,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:45,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:45,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578541726] [2022-02-23 20:15:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:45,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:45,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:45,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:45,418 INFO L87 Difference]: Start difference. First operand 256 states and 394 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:49,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:51,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:51,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:51,561 INFO L93 Difference]: Finished difference Result 365 states and 563 transitions. [2022-02-23 20:15:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:51,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-23 20:15:51,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:51,563 INFO L225 Difference]: With dead ends: 365 [2022-02-23 20:15:51,563 INFO L226 Difference]: Without dead ends: 365 [2022-02-23 20:15:51,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:51,563 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 158 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:51,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-23 20:15:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-02-23 20:15:51,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 257. [2022-02-23 20:15:51,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 252 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 393 transitions. [2022-02-23 20:15:51,568 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 393 transitions. Word has length 83 [2022-02-23 20:15:51,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:51,568 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 393 transitions. [2022-02-23 20:15:51,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:51,568 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 393 transitions. [2022-02-23 20:15:51,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-23 20:15:51,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:51,569 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:51,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 20:15:51,569 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1828775293, now seen corresponding path program 1 times [2022-02-23 20:15:51,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:51,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711073681] [2022-02-23 20:15:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:51,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:51,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:51,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:51,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711073681] [2022-02-23 20:15:51,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711073681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:51,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:51,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:51,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398488520] [2022-02-23 20:15:51,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:51,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:51,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:51,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:51,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:51,651 INFO L87 Difference]: Start difference. First operand 257 states and 393 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:55,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:57,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:57,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:57,620 INFO L93 Difference]: Finished difference Result 364 states and 559 transitions. [2022-02-23 20:15:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-23 20:15:57,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:57,622 INFO L225 Difference]: With dead ends: 364 [2022-02-23 20:15:57,622 INFO L226 Difference]: Without dead ends: 364 [2022-02-23 20:15:57,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:57,623 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 156 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:57,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 402 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:15:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-02-23 20:15:57,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 258. [2022-02-23 20:15:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.533596837944664) internal successors, (388), 253 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 392 transitions. [2022-02-23 20:15:57,627 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 392 transitions. Word has length 83 [2022-02-23 20:15:57,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:57,627 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 392 transitions. [2022-02-23 20:15:57,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 392 transitions. [2022-02-23 20:15:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-23 20:15:57,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:57,628 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:57,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 20:15:57,628 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:57,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:57,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1507291911, now seen corresponding path program 1 times [2022-02-23 20:15:57,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:57,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672877025] [2022-02-23 20:15:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-23 20:15:57,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:57,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672877025] [2022-02-23 20:15:57,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672877025] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:57,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:57,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:57,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538927956] [2022-02-23 20:15:57,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:57,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:57,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:57,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:57,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:57,717 INFO L87 Difference]: Start difference. First operand 258 states and 392 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:00,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:02,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:02,651 INFO L93 Difference]: Finished difference Result 270 states and 406 transitions. [2022-02-23 20:16:02,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:02,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-23 20:16:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:02,653 INFO L225 Difference]: With dead ends: 270 [2022-02-23 20:16:02,653 INFO L226 Difference]: Without dead ends: 270 [2022-02-23 20:16:02,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:02,653 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 19 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:02,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 622 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:16:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-23 20:16:02,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 258. [2022-02-23 20:16:02,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5296442687747036) internal successors, (387), 253 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 391 transitions. [2022-02-23 20:16:02,657 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 391 transitions. Word has length 85 [2022-02-23 20:16:02,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:02,658 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 391 transitions. [2022-02-23 20:16:02,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 391 transitions. [2022-02-23 20:16:02,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-23 20:16:02,658 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:02,658 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:02,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 20:16:02,659 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:02,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:02,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1916846855, now seen corresponding path program 1 times [2022-02-23 20:16:02,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:02,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407124223] [2022-02-23 20:16:02,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:02,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:16:02,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:02,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407124223] [2022-02-23 20:16:02,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407124223] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:02,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:02,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:02,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860102354] [2022-02-23 20:16:02,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:02,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:02,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:02,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:02,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:02,744 INFO L87 Difference]: Start difference. First operand 258 states and 391 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:04,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:06,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:08,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:09,287 INFO L93 Difference]: Finished difference Result 364 states and 554 transitions. [2022-02-23 20:16:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:09,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-02-23 20:16:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:09,289 INFO L225 Difference]: With dead ends: 364 [2022-02-23 20:16:09,289 INFO L226 Difference]: Without dead ends: 364 [2022-02-23 20:16:09,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:09,289 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 159 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:09,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 402 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-02-23 20:16:09,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-02-23 20:16:09,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 258. [2022-02-23 20:16:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5138339920948616) internal successors, (383), 253 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 387 transitions. [2022-02-23 20:16:09,293 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 387 transitions. Word has length 86 [2022-02-23 20:16:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:09,294 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 387 transitions. [2022-02-23 20:16:09,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 387 transitions. [2022-02-23 20:16:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-23 20:16:09,294 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:09,294 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:09,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 20:16:09,295 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:09,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:09,295 INFO L85 PathProgramCache]: Analyzing trace with hash 397807451, now seen corresponding path program 1 times [2022-02-23 20:16:09,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:09,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794457578] [2022-02-23 20:16:09,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:09,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:09,437 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:16:09,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:09,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794457578] [2022-02-23 20:16:09,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794457578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:09,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:09,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:09,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901431898] [2022-02-23 20:16:09,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:09,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:09,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:09,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:09,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:09,440 INFO L87 Difference]: Start difference. First operand 258 states and 387 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) [2022-02-23 20:16:11,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:13,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:14,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:14,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:14,905 INFO L93 Difference]: Finished difference Result 354 states and 537 transitions. [2022-02-23 20:16:14,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:14,905 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 87 [2022-02-23 20:16:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:14,907 INFO L225 Difference]: With dead ends: 354 [2022-02-23 20:16:14,907 INFO L226 Difference]: Without dead ends: 354 [2022-02-23 20:16:14,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:14,907 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 150 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:14,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 422 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-23 20:16:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-02-23 20:16:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 258. [2022-02-23 20:16:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4980237154150198) internal successors, (379), 253 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 383 transitions. [2022-02-23 20:16:14,911 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 383 transitions. Word has length 87 [2022-02-23 20:16:14,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:14,911 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 383 transitions. [2022-02-23 20:16:14,912 INFO L471 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) [2022-02-23 20:16:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 383 transitions. [2022-02-23 20:16:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-23 20:16:14,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:14,912 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:14,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 20:16:14,912 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash -903497846, now seen corresponding path program 1 times [2022-02-23 20:16:14,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:14,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980912545] [2022-02-23 20:16:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:15,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:15,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980912545] [2022-02-23 20:16:15,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980912545] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:15,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:15,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:15,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418883919] [2022-02-23 20:16:15,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:15,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:15,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:15,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:15,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:15,067 INFO L87 Difference]: Start difference. First operand 258 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:16,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:19,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:21,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:21,688 INFO L93 Difference]: Finished difference Result 349 states and 522 transitions. [2022-02-23 20:16:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:21,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-02-23 20:16:21,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:21,690 INFO L225 Difference]: With dead ends: 349 [2022-02-23 20:16:21,690 INFO L226 Difference]: Without dead ends: 349 [2022-02-23 20:16:21,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:21,690 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 81 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:21,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 537 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 513 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-23 20:16:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-02-23 20:16:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 300. [2022-02-23 20:16:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.511864406779661) internal successors, (446), 295 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 450 transitions. [2022-02-23 20:16:21,695 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 450 transitions. Word has length 91 [2022-02-23 20:16:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:21,695 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 450 transitions. [2022-02-23 20:16:21,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 450 transitions. [2022-02-23 20:16:21,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-23 20:16:21,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:21,695 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:21,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 20:16:21,696 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:21,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1352194485, now seen corresponding path program 1 times [2022-02-23 20:16:21,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:21,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390200401] [2022-02-23 20:16:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:21,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:21,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390200401] [2022-02-23 20:16:21,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390200401] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:21,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:21,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:21,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564367791] [2022-02-23 20:16:21,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:21,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:21,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:21,857 INFO L87 Difference]: Start difference. First operand 300 states and 450 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:23,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:25,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:27,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:28,510 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 [] [2022-02-23 20:16:28,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:28,962 INFO L93 Difference]: Finished difference Result 396 states and 603 transitions. [2022-02-23 20:16:28,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:28,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-02-23 20:16:28,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:28,964 INFO L225 Difference]: With dead ends: 396 [2022-02-23 20:16:28,964 INFO L226 Difference]: Without dead ends: 396 [2022-02-23 20:16:28,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:28,964 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 124 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:28,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 448 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-02-23 20:16:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-02-23 20:16:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 280. [2022-02-23 20:16:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5345454545454544) internal successors, (422), 275 states have internal predecessors, (422), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 426 transitions. [2022-02-23 20:16:28,968 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 426 transitions. Word has length 91 [2022-02-23 20:16:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:28,969 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 426 transitions. [2022-02-23 20:16:28,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:28,969 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 426 transitions. [2022-02-23 20:16:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-23 20:16:28,969 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:28,969 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:28,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 20:16:28,970 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:28,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1815101343, now seen corresponding path program 1 times [2022-02-23 20:16:28,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:28,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970065466] [2022-02-23 20:16:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:28,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:29,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:29,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970065466] [2022-02-23 20:16:29,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970065466] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:29,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:29,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:29,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786118228] [2022-02-23 20:16:29,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:29,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:29,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:29,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:29,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:29,069 INFO L87 Difference]: Start difference. First operand 280 states and 426 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) [2022-02-23 20:16:31,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:32,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:32,561 INFO L93 Difference]: Finished difference Result 430 states and 660 transitions. [2022-02-23 20:16:32,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:32,561 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 119 [2022-02-23 20:16:32,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:32,563 INFO L225 Difference]: With dead ends: 430 [2022-02-23 20:16:32,563 INFO L226 Difference]: Without dead ends: 430 [2022-02-23 20:16:32,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:32,563 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 130 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:32,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 432 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-23 20:16:32,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-23 20:16:32,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 344. [2022-02-23 20:16:32,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.5398230088495575) internal successors, (522), 339 states have internal predecessors, (522), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 526 transitions. [2022-02-23 20:16:32,568 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 526 transitions. Word has length 119 [2022-02-23 20:16:32,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:32,568 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 526 transitions. [2022-02-23 20:16:32,568 INFO L471 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) [2022-02-23 20:16:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 526 transitions. [2022-02-23 20:16:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-23 20:16:32,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:32,569 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:32,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 20:16:32,570 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1973991093, now seen corresponding path program 1 times [2022-02-23 20:16:32,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:32,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318218085] [2022-02-23 20:16:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:32,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:32,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:32,707 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:32,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:32,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318218085] [2022-02-23 20:16:32,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318218085] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:32,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:32,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:32,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228238940] [2022-02-23 20:16:32,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:32,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:32,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:32,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:32,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:32,709 INFO L87 Difference]: Start difference. First operand 344 states and 526 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) [2022-02-23 20:16:35,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:37,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:38,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:38,094 INFO L93 Difference]: Finished difference Result 432 states and 659 transitions. [2022-02-23 20:16:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:38,094 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 [2022-02-23 20:16:38,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:38,095 INFO L225 Difference]: With dead ends: 432 [2022-02-23 20:16:38,095 INFO L226 Difference]: Without dead ends: 432 [2022-02-23 20:16:38,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:38,096 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 81 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:38,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 551 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 512 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-02-23 20:16:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-02-23 20:16:38,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 383. [2022-02-23 20:16:38,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5423280423280423) internal successors, (583), 378 states have internal predecessors, (583), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:38,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 587 transitions. [2022-02-23 20:16:38,101 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 587 transitions. Word has length 125 [2022-02-23 20:16:38,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:38,101 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 587 transitions. [2022-02-23 20:16:38,101 INFO L471 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) [2022-02-23 20:16:38,102 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 587 transitions. [2022-02-23 20:16:38,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-23 20:16:38,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:38,102 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:38,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 20:16:38,103 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:38,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1987523894, now seen corresponding path program 1 times [2022-02-23 20:16:38,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:38,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938479571] [2022-02-23 20:16:38,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:38,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:38,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-23 20:16:38,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:38,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938479571] [2022-02-23 20:16:38,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938479571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:38,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:38,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:38,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443085351] [2022-02-23 20:16:38,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:38,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:38,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:38,197 INFO L87 Difference]: Start difference. First operand 383 states and 587 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:39,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:41,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:43,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:44,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:45,225 INFO L93 Difference]: Finished difference Result 419 states and 638 transitions. [2022-02-23 20:16:45,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:45,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-23 20:16:45,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:45,227 INFO L225 Difference]: With dead ends: 419 [2022-02-23 20:16:45,227 INFO L226 Difference]: Without dead ends: 419 [2022-02-23 20:16:45,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:45,227 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 27 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:45,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 641 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 443 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-23 20:16:45,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-02-23 20:16:45,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 407. [2022-02-23 20:16:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 402 states have (on average 1.5348258706467661) internal successors, (617), 402 states have internal predecessors, (617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 621 transitions. [2022-02-23 20:16:45,232 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 621 transitions. Word has length 125 [2022-02-23 20:16:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:45,233 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 621 transitions. [2022-02-23 20:16:45,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 621 transitions. [2022-02-23 20:16:45,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-23 20:16:45,234 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:45,234 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:45,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 20:16:45,234 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:45,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:45,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1106583750, now seen corresponding path program 1 times [2022-02-23 20:16:45,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:45,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323058599] [2022-02-23 20:16:45,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:45,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:45,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:45,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:45,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323058599] [2022-02-23 20:16:45,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323058599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:45,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:45,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:45,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401378335] [2022-02-23 20:16:45,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:45,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:45,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:45,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:45,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:45,374 INFO L87 Difference]: Start difference. First operand 407 states and 621 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:46,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:48,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:50,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:52,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:52,065 INFO L93 Difference]: Finished difference Result 481 states and 729 transitions. [2022-02-23 20:16:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:52,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-02-23 20:16:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:52,067 INFO L225 Difference]: With dead ends: 481 [2022-02-23 20:16:52,067 INFO L226 Difference]: Without dead ends: 481 [2022-02-23 20:16:52,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:52,068 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 125 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:52,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 420 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-23 20:16:52,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-23 20:16:52,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 407. [2022-02-23 20:16:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 402 states have (on average 1.5298507462686568) internal successors, (615), 402 states have internal predecessors, (615), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:52,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 619 transitions. [2022-02-23 20:16:52,074 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 619 transitions. Word has length 126 [2022-02-23 20:16:52,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:52,074 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 619 transitions. [2022-02-23 20:16:52,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 619 transitions. [2022-02-23 20:16:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-23 20:16:52,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:52,075 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:52,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 20:16:52,075 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:52,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:52,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1496750099, now seen corresponding path program 1 times [2022-02-23 20:16:52,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:52,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058174056] [2022-02-23 20:16:52,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:52,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:52,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:52,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058174056] [2022-02-23 20:16:52,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058174056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:52,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:52,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:52,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982939773] [2022-02-23 20:16:52,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:52,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:52,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:52,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:52,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:52,172 INFO L87 Difference]: Start difference. First operand 407 states and 619 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 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) [2022-02-23 20:16:54,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:55,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:57,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:57,904 INFO L93 Difference]: Finished difference Result 521 states and 791 transitions. [2022-02-23 20:16:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:57,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 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 133 [2022-02-23 20:16:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:57,906 INFO L225 Difference]: With dead ends: 521 [2022-02-23 20:16:57,906 INFO L226 Difference]: Without dead ends: 521 [2022-02-23 20:16:57,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:57,907 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 118 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:57,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 421 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-02-23 20:16:57,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-02-23 20:16:57,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 450. [2022-02-23 20:16:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 445 states have (on average 1.5348314606741573) internal successors, (683), 445 states have internal predecessors, (683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 687 transitions. [2022-02-23 20:16:57,912 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 687 transitions. Word has length 133 [2022-02-23 20:16:57,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:57,912 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 687 transitions. [2022-02-23 20:16:57,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 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) [2022-02-23 20:16:57,913 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 687 transitions. [2022-02-23 20:16:57,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-23 20:16:57,913 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:57,914 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:57,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 20:16:57,914 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:57,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1613379998, now seen corresponding path program 1 times [2022-02-23 20:16:57,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:57,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603118793] [2022-02-23 20:16:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:57,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:58,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:58,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603118793] [2022-02-23 20:16:58,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603118793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:58,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:58,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:58,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521699122] [2022-02-23 20:16:58,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:58,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:58,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:58,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:58,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:58,033 INFO L87 Difference]: Start difference. First operand 450 states and 687 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:00,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:03,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:03,487 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2022-02-23 20:17:03,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:03,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-02-23 20:17:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:03,489 INFO L225 Difference]: With dead ends: 488 [2022-02-23 20:17:03,489 INFO L226 Difference]: Without dead ends: 488 [2022-02-23 20:17:03,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:03,489 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 60 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:03,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 551 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-23 20:17:03,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-02-23 20:17:03,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 454. [2022-02-23 20:17:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.530066815144766) internal successors, (687), 449 states have internal predecessors, (687), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 691 transitions. [2022-02-23 20:17:03,494 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 691 transitions. Word has length 134 [2022-02-23 20:17:03,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:03,495 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 691 transitions. [2022-02-23 20:17:03,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 691 transitions. [2022-02-23 20:17:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-23 20:17:03,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:03,496 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:03,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 20:17:03,496 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash -237089050, now seen corresponding path program 1 times [2022-02-23 20:17:03,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:03,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823869989] [2022-02-23 20:17:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:17:03,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:03,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823869989] [2022-02-23 20:17:03,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823869989] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:03,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:03,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:03,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416551383] [2022-02-23 20:17:03,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:03,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:03,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:03,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:03,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:03,595 INFO L87 Difference]: Start difference. First operand 454 states and 691 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) [2022-02-23 20:17:04,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:06,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:08,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:10,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:11,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:11,224 INFO L93 Difference]: Finished difference Result 571 states and 863 transitions. [2022-02-23 20:17:11,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:11,224 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 [2022-02-23 20:17:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:11,226 INFO L225 Difference]: With dead ends: 571 [2022-02-23 20:17:11,226 INFO L226 Difference]: Without dead ends: 571 [2022-02-23 20:17:11,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:11,226 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 132 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:11,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 448 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 494 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-23 20:17:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-02-23 20:17:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 484. [2022-02-23 20:17:11,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5198329853862214) internal successors, (728), 479 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:11,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 732 transitions. [2022-02-23 20:17:11,248 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 732 transitions. Word has length 146 [2022-02-23 20:17:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:11,249 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 732 transitions. [2022-02-23 20:17:11,249 INFO L471 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) [2022-02-23 20:17:11,249 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 732 transitions. [2022-02-23 20:17:11,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:17:11,250 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:11,250 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:11,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 20:17:11,250 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:11,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:11,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1919103288, now seen corresponding path program 1 times [2022-02-23 20:17:11,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:11,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288788582] [2022-02-23 20:17:11,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:11,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:11,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:11,341 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:17:11,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:11,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288788582] [2022-02-23 20:17:11,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288788582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:11,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:11,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:11,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732886527] [2022-02-23 20:17:11,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:11,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:11,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:11,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:11,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:11,343 INFO L87 Difference]: Start difference. First operand 484 states and 732 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:12,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:14,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:16,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:17,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:18,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:18,063 INFO L93 Difference]: Finished difference Result 516 states and 778 transitions. [2022-02-23 20:17:18,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:18,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:17:18,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:18,065 INFO L225 Difference]: With dead ends: 516 [2022-02-23 20:17:18,065 INFO L226 Difference]: Without dead ends: 516 [2022-02-23 20:17:18,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:18,065 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 67 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:18,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 555 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-23 20:17:18,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-02-23 20:17:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-02-23 20:17:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5177453027139876) internal successors, (727), 479 states have internal predecessors, (727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:18,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 731 transitions. [2022-02-23 20:17:18,084 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 731 transitions. Word has length 147 [2022-02-23 20:17:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:18,084 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 731 transitions. [2022-02-23 20:17:18,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 731 transitions. [2022-02-23 20:17:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:17:18,085 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:18,086 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:18,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 20:17:18,086 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1108517993, now seen corresponding path program 1 times [2022-02-23 20:17:18,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:18,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041487297] [2022-02-23 20:17:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-23 20:17:18,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:18,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041487297] [2022-02-23 20:17:18,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041487297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:18,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:18,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:18,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797257717] [2022-02-23 20:17:18,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:18,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:18,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:18,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:18,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:18,226 INFO L87 Difference]: Start difference. First operand 484 states and 731 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:20,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:22,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:22,251 INFO L93 Difference]: Finished difference Result 516 states and 777 transitions. [2022-02-23 20:17:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:22,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:17:22,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:22,253 INFO L225 Difference]: With dead ends: 516 [2022-02-23 20:17:22,253 INFO L226 Difference]: Without dead ends: 516 [2022-02-23 20:17:22,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:22,254 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 73 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:22,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 569 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:17:22,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-02-23 20:17:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-02-23 20:17:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5156576200417538) internal successors, (726), 479 states have internal predecessors, (726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2022-02-23 20:17:22,259 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 147 [2022-02-23 20:17:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:22,259 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2022-02-23 20:17:22,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:22,259 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2022-02-23 20:17:22,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:17:22,260 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:22,260 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:22,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 20:17:22,261 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:22,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:22,261 INFO L85 PathProgramCache]: Analyzing trace with hash -592997544, now seen corresponding path program 1 times [2022-02-23 20:17:22,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:22,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662785959] [2022-02-23 20:17:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:22,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:22,354 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-23 20:17:22,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:22,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662785959] [2022-02-23 20:17:22,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662785959] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:22,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:22,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:22,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764888854] [2022-02-23 20:17:22,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:22,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:22,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:22,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:22,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:22,356 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:24,357 INFO L93 Difference]: Finished difference Result 939 states and 1409 transitions. [2022-02-23 20:17:24,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:24,358 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 [2022-02-23 20:17:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:24,360 INFO L225 Difference]: With dead ends: 939 [2022-02-23 20:17:24,360 INFO L226 Difference]: Without dead ends: 939 [2022-02-23 20:17:24,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:24,361 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:24,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 451 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-23 20:17:24,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-02-23 20:17:24,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-02-23 20:17:24,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.5042826552462527) internal successors, (1405), 934 states have internal predecessors, (1405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:24,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1409 transitions. [2022-02-23 20:17:24,370 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1409 transitions. Word has length 147 [2022-02-23 20:17:24,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:24,370 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1409 transitions. [2022-02-23 20:17:24,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:24,370 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1409 transitions. [2022-02-23 20:17:24,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:17:24,372 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:24,372 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:24,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 20:17:24,372 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash 900914905, now seen corresponding path program 1 times [2022-02-23 20:17:24,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:24,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107893682] [2022-02-23 20:17:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:24,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-23 20:17:24,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:24,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107893682] [2022-02-23 20:17:24,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107893682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:24,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:24,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:24,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174409203] [2022-02-23 20:17:24,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:24,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:24,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:24,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:24,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:24,455 INFO L87 Difference]: Start difference. First operand 939 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:25,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:27,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:28,126 INFO L93 Difference]: Finished difference Result 966 states and 1444 transitions. [2022-02-23 20:17:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:28,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:17:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:28,128 INFO L225 Difference]: With dead ends: 966 [2022-02-23 20:17:28,128 INFO L226 Difference]: Without dead ends: 966 [2022-02-23 20:17:28,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:28,129 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:28,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-23 20:17:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-02-23 20:17:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-02-23 20:17:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4984391259105099) internal successors, (1440), 961 states have internal predecessors, (1440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:28,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1444 transitions. [2022-02-23 20:17:28,138 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1444 transitions. Word has length 147 [2022-02-23 20:17:28,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:28,138 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1444 transitions. [2022-02-23 20:17:28,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:28,138 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1444 transitions. [2022-02-23 20:17:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:17:28,140 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:28,140 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:28,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 20:17:28,140 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:28,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:28,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1002545190, now seen corresponding path program 1 times [2022-02-23 20:17:28,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:28,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254747048] [2022-02-23 20:17:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:28,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-23 20:17:28,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:28,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254747048] [2022-02-23 20:17:28,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254747048] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:28,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:28,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:28,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401157387] [2022-02-23 20:17:28,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:28,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:28,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:28,217 INFO L87 Difference]: Start difference. First operand 966 states and 1444 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:29,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:31,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:32,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:32,031 INFO L93 Difference]: Finished difference Result 968 states and 1446 transitions. [2022-02-23 20:17:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:32,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:17:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:32,033 INFO L225 Difference]: With dead ends: 968 [2022-02-23 20:17:32,033 INFO L226 Difference]: Without dead ends: 968 [2022-02-23 20:17:32,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:32,034 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:32,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-02-23 20:17:32,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-02-23 20:17:32,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-02-23 20:17:32,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.497403946002077) internal successors, (1442), 963 states have internal predecessors, (1442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1446 transitions. [2022-02-23 20:17:32,052 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1446 transitions. Word has length 147 [2022-02-23 20:17:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:32,053 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1446 transitions. [2022-02-23 20:17:32,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1446 transitions. [2022-02-23 20:17:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-23 20:17:32,054 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:32,054 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:32,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 20:17:32,055 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:32,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:32,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2123088927, now seen corresponding path program 1 times [2022-02-23 20:17:32,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:32,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532795303] [2022-02-23 20:17:32,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:32,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:17:32,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:32,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532795303] [2022-02-23 20:17:32,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532795303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:32,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:32,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:32,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331692040] [2022-02-23 20:17:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:32,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:32,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:32,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:32,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:32,145 INFO L87 Difference]: Start difference. First operand 968 states and 1446 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) [2022-02-23 20:17:34,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:36,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:36,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:36,875 INFO L93 Difference]: Finished difference Result 1423 states and 2125 transitions. [2022-02-23 20:17:36,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:36,876 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 [2022-02-23 20:17:36,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:36,879 INFO L225 Difference]: With dead ends: 1423 [2022-02-23 20:17:36,879 INFO L226 Difference]: Without dead ends: 1423 [2022-02-23 20:17:36,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:36,880 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 157 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:36,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 595 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-23 20:17:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-02-23 20:17:36,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-02-23 20:17:36,890 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) [2022-02-23 20:17:36,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2125 transitions. [2022-02-23 20:17:36,892 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2125 transitions. Word has length 149 [2022-02-23 20:17:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:36,892 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 2125 transitions. [2022-02-23 20:17:36,893 INFO L471 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) [2022-02-23 20:17:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2125 transitions. [2022-02-23 20:17:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-02-23 20:17:36,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:36,895 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:36,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 20:17:36,895 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:36,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1724469547, now seen corresponding path program 1 times [2022-02-23 20:17:36,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:36,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823950911] [2022-02-23 20:17:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:36,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:37,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-23 20:17:37,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:37,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823950911] [2022-02-23 20:17:37,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823950911] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:37,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:37,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:37,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791396220] [2022-02-23 20:17:37,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:37,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:37,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:37,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:37,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:37,018 INFO L87 Difference]: Start difference. First operand 1423 states and 2125 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:38,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:39,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:41,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:43,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:44,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:44,221 INFO L93 Difference]: Finished difference Result 1760 states and 2602 transitions. [2022-02-23 20:17:44,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:44,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-02-23 20:17:44,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:44,226 INFO L225 Difference]: With dead ends: 1760 [2022-02-23 20:17:44,226 INFO L226 Difference]: Without dead ends: 1760 [2022-02-23 20:17:44,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:44,227 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 122 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:44,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 440 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-23 20:17:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2022-02-23 20:17:44,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1534. [2022-02-23 20:17:44,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1529 states have (on average 1.4970568999345977) internal successors, (2289), 1529 states have internal predecessors, (2289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:44,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2293 transitions. [2022-02-23 20:17:44,271 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2293 transitions. Word has length 178 [2022-02-23 20:17:44,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:44,271 INFO L470 AbstractCegarLoop]: Abstraction has 1534 states and 2293 transitions. [2022-02-23 20:17:44,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:44,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2293 transitions. [2022-02-23 20:17:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-02-23 20:17:44,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:44,287 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:44,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 20:17:44,287 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:44,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:44,288 INFO L85 PathProgramCache]: Analyzing trace with hash -642977214, now seen corresponding path program 1 times [2022-02-23 20:17:44,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:44,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125162714] [2022-02-23 20:17:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:44,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:44,404 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-02-23 20:17:44,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:44,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125162714] [2022-02-23 20:17:44,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125162714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:44,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:44,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:44,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366295782] [2022-02-23 20:17:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:44,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:44,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:44,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:44,405 INFO L87 Difference]: Start difference. First operand 1534 states and 2293 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:46,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:48,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:50,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:50,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:50,468 INFO L93 Difference]: Finished difference Result 1684 states and 2512 transitions. [2022-02-23 20:17:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:50,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2022-02-23 20:17:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:50,472 INFO L225 Difference]: With dead ends: 1684 [2022-02-23 20:17:50,472 INFO L226 Difference]: Without dead ends: 1684 [2022-02-23 20:17:50,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:50,483 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 41 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:50,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 657 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:17:50,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2022-02-23 20:17:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1618. [2022-02-23 20:17:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1613 states have (on average 1.4972101673899565) internal successors, (2415), 1613 states have internal predecessors, (2415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2419 transitions. [2022-02-23 20:17:50,510 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2419 transitions. Word has length 187 [2022-02-23 20:17:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:50,510 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2419 transitions. [2022-02-23 20:17:50,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2419 transitions. [2022-02-23 20:17:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-02-23 20:17:50,520 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:50,520 INFO L514 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, 1] [2022-02-23 20:17:50,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 20:17:50,520 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:50,521 INFO L85 PathProgramCache]: Analyzing trace with hash 711480470, now seen corresponding path program 1 times [2022-02-23 20:17:50,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:50,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9243049] [2022-02-23 20:17:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:50,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:50,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-02-23 20:17:50,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:50,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9243049] [2022-02-23 20:17:50,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9243049] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:50,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:50,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:50,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608372499] [2022-02-23 20:17:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:50,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:50,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:50,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:50,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:50,688 INFO L87 Difference]: Start difference. First operand 1618 states and 2419 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:52,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:52,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:52,978 INFO L93 Difference]: Finished difference Result 2139 states and 3203 transitions. [2022-02-23 20:17:52,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:52,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-02-23 20:17:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:52,984 INFO L225 Difference]: With dead ends: 2139 [2022-02-23 20:17:52,984 INFO L226 Difference]: Without dead ends: 2139 [2022-02-23 20:17:52,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:52,985 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:52,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 288 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:17:52,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-02-23 20:17:53,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2022-02-23 20:17:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4990627928772258) internal successors, (3199), 2134 states have internal predecessors, (3199), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:53,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3203 transitions. [2022-02-23 20:17:53,011 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3203 transitions. Word has length 203 [2022-02-23 20:17:53,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:53,011 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3203 transitions. [2022-02-23 20:17:53,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3203 transitions. [2022-02-23 20:17:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-02-23 20:17:53,015 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:53,016 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:53,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 20:17:53,016 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:53,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1184547134, now seen corresponding path program 1 times [2022-02-23 20:17:53,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:53,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532600080] [2022-02-23 20:17:53,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:53,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-02-23 20:17:53,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:53,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532600080] [2022-02-23 20:17:53,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532600080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:53,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:53,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:53,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138493931] [2022-02-23 20:17:53,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:53,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:53,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:53,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:53,147 INFO L87 Difference]: Start difference. First operand 2139 states and 3203 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:55,427 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 [] [2022-02-23 20:17:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:56,255 INFO L93 Difference]: Finished difference Result 2428 states and 3557 transitions. [2022-02-23 20:17:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:56,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-02-23 20:17:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:56,261 INFO L225 Difference]: With dead ends: 2428 [2022-02-23 20:17:56,261 INFO L226 Difference]: Without dead ends: 2428 [2022-02-23 20:17:56,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:56,262 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 140 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:56,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 485 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-23 20:17:56,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-02-23 20:17:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2139. [2022-02-23 20:17:56,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4803186504217432) internal successors, (3159), 2134 states have internal predecessors, (3159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3163 transitions. [2022-02-23 20:17:56,280 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3163 transitions. Word has length 241 [2022-02-23 20:17:56,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:56,281 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3163 transitions. [2022-02-23 20:17:56,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:56,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3163 transitions. [2022-02-23 20:17:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-02-23 20:17:56,287 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:56,287 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:56,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 20:17:56,287 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:56,288 INFO L85 PathProgramCache]: Analyzing trace with hash 829865666, now seen corresponding path program 1 times [2022-02-23 20:17:56,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:56,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821677591] [2022-02-23 20:17:56,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:56,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:56,405 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-02-23 20:17:56,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:56,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821677591] [2022-02-23 20:17:56,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821677591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:56,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:56,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:56,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824465786] [2022-02-23 20:17:56,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:56,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:56,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:56,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:56,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:56,407 INFO L87 Difference]: Start difference. First operand 2139 states and 3163 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:00,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:00,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:00,451 INFO L93 Difference]: Finished difference Result 2227 states and 3285 transitions. [2022-02-23 20:18:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:18:00,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-02-23 20:18:00,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:00,460 INFO L225 Difference]: With dead ends: 2227 [2022-02-23 20:18:00,460 INFO L226 Difference]: Without dead ends: 2227 [2022-02-23 20:18:00,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:18:00,461 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 43 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:00,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 655 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:18:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2022-02-23 20:18:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2139. [2022-02-23 20:18:00,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.478444236176195) internal successors, (3155), 2134 states have internal predecessors, (3155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3159 transitions. [2022-02-23 20:18:00,519 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3159 transitions. Word has length 241 [2022-02-23 20:18:00,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:00,519 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3159 transitions. [2022-02-23 20:18:00,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:00,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3159 transitions. [2022-02-23 20:18:00,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-02-23 20:18:00,522 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:00,522 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:00,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 20:18:00,522 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:00,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:00,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2131789788, now seen corresponding path program 1 times [2022-02-23 20:18:00,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:00,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429201715] [2022-02-23 20:18:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:00,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:00,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-02-23 20:18:00,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:00,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429201715] [2022-02-23 20:18:00,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429201715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:00,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:00,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:18:00,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245239040] [2022-02-23 20:18:00,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:00,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:18:00,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:18:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:18:00,659 INFO L87 Difference]: Start difference. First operand 2139 states and 3159 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:01,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:04,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:05,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:06,343 INFO L93 Difference]: Finished difference Result 2211 states and 3259 transitions. [2022-02-23 20:18:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:18:06,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-02-23 20:18:06,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:06,347 INFO L225 Difference]: With dead ends: 2211 [2022-02-23 20:18:06,347 INFO L226 Difference]: Without dead ends: 2211 [2022-02-23 20:18:06,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:18:06,348 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 39 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:06,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 647 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-23 20:18:06,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2022-02-23 20:18:06,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2139. [2022-02-23 20:18:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4765698219306467) internal successors, (3151), 2134 states have internal predecessors, (3151), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:06,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3155 transitions. [2022-02-23 20:18:06,365 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3155 transitions. Word has length 242 [2022-02-23 20:18:06,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:06,365 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3155 transitions. [2022-02-23 20:18:06,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:06,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3155 transitions. [2022-02-23 20:18:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-02-23 20:18:06,368 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:06,368 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:06,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 20:18:06,368 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:06,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:06,368 INFO L85 PathProgramCache]: Analyzing trace with hash 762659973, now seen corresponding path program 1 times [2022-02-23 20:18:06,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:06,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473633702] [2022-02-23 20:18:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:06,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-02-23 20:18:06,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:06,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473633702] [2022-02-23 20:18:06,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473633702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:06,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:06,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:18:06,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586379480] [2022-02-23 20:18:06,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:06,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:18:06,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:06,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:18:06,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:18:06,513 INFO L87 Difference]: Start difference. First operand 2139 states and 3155 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:08,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:10,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:11,999 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 [] [2022-02-23 20:18:12,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:12,432 INFO L93 Difference]: Finished difference Result 2428 states and 3513 transitions. [2022-02-23 20:18:12,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:18:12,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-02-23 20:18:12,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:12,436 INFO L225 Difference]: With dead ends: 2428 [2022-02-23 20:18:12,436 INFO L226 Difference]: Without dead ends: 2428 [2022-02-23 20:18:12,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:18:12,436 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 137 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:12,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 438 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-23 20:18:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-02-23 20:18:12,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2139. [2022-02-23 20:18:12,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4597000937207123) internal successors, (3115), 2134 states have internal predecessors, (3115), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:12,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3119 transitions. [2022-02-23 20:18:12,491 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3119 transitions. Word has length 242 [2022-02-23 20:18:12,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:12,491 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3119 transitions. [2022-02-23 20:18:12,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:12,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3119 transitions. [2022-02-23 20:18:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-02-23 20:18:12,495 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:12,495 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:12,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 20:18:12,495 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:12,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash 258878258, now seen corresponding path program 1 times [2022-02-23 20:18:12,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:12,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738302645] [2022-02-23 20:18:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-02-23 20:18:12,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:12,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738302645] [2022-02-23 20:18:12,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738302645] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:12,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:12,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:12,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853137262] [2022-02-23 20:18:12,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:12,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:12,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:12,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:12,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:12,648 INFO L87 Difference]: Start difference. First operand 2139 states and 3119 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) [2022-02-23 20:18:13,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:16,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:16,835 INFO L93 Difference]: Finished difference Result 2659 states and 3875 transitions. [2022-02-23 20:18:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:16,837 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 244 [2022-02-23 20:18:16,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:16,841 INFO L225 Difference]: With dead ends: 2659 [2022-02-23 20:18:16,841 INFO L226 Difference]: Without dead ends: 2659 [2022-02-23 20:18:16,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:16,841 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:16,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-23 20:18:16,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2022-02-23 20:18:16,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2659. [2022-02-23 20:18:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2654 states have (on average 1.458553127354936) internal successors, (3871), 2654 states have internal predecessors, (3871), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:16,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3875 transitions. [2022-02-23 20:18:16,879 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3875 transitions. Word has length 244 [2022-02-23 20:18:16,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:16,879 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 3875 transitions. [2022-02-23 20:18:16,879 INFO L471 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) [2022-02-23 20:18:16,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3875 transitions. [2022-02-23 20:18:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-23 20:18:16,882 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:16,883 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:16,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 20:18:16,883 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:16,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:16,883 INFO L85 PathProgramCache]: Analyzing trace with hash 454431661, now seen corresponding path program 1 times [2022-02-23 20:18:16,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:16,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345590798] [2022-02-23 20:18:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:16,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:17,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:17,092 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-02-23 20:18:17,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:17,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345590798] [2022-02-23 20:18:17,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345590798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:17,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:17,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:17,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098049014] [2022-02-23 20:18:17,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:17,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:17,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:17,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:17,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:17,093 INFO L87 Difference]: Start difference. First operand 2659 states and 3875 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:19,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:21,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:22,210 INFO L93 Difference]: Finished difference Result 3180 states and 4639 transitions. [2022-02-23 20:18:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-02-23 20:18:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:22,215 INFO L225 Difference]: With dead ends: 3180 [2022-02-23 20:18:22,215 INFO L226 Difference]: Without dead ends: 3180 [2022-02-23 20:18:22,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:22,216 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:22,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-02-23 20:18:22,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2022-02-23 20:18:22,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3180. [2022-02-23 20:18:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 3175 states have (on average 1.4598425196850393) internal successors, (4635), 3175 states have internal predecessors, (4635), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4639 transitions. [2022-02-23 20:18:22,240 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4639 transitions. Word has length 250 [2022-02-23 20:18:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:22,241 INFO L470 AbstractCegarLoop]: Abstraction has 3180 states and 4639 transitions. [2022-02-23 20:18:22,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4639 transitions. [2022-02-23 20:18:22,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-02-23 20:18:22,245 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:22,245 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:22,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-23 20:18:22,245 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:22,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:22,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1734798122, now seen corresponding path program 1 times [2022-02-23 20:18:22,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:22,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193856815] [2022-02-23 20:18:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:22,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-02-23 20:18:22,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:22,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193856815] [2022-02-23 20:18:22,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193856815] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:22,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:22,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:22,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682717087] [2022-02-23 20:18:22,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:22,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:22,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:22,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:22,396 INFO L87 Difference]: Start difference. First operand 3180 states and 4639 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) [2022-02-23 20:18:25,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:25,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:25,452 INFO L93 Difference]: Finished difference Result 3701 states and 5404 transitions. [2022-02-23 20:18:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:25,452 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 252 [2022-02-23 20:18:25,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:25,458 INFO L225 Difference]: With dead ends: 3701 [2022-02-23 20:18:25,458 INFO L226 Difference]: Without dead ends: 3701 [2022-02-23 20:18:25,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:25,458 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:25,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 388 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-23 20:18:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2022-02-23 20:18:25,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3701. [2022-02-23 20:18:25,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 3696 states have (on average 1.4610389610389611) internal successors, (5400), 3696 states have internal predecessors, (5400), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 5404 transitions. [2022-02-23 20:18:25,485 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 5404 transitions. Word has length 252 [2022-02-23 20:18:25,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:25,486 INFO L470 AbstractCegarLoop]: Abstraction has 3701 states and 5404 transitions. [2022-02-23 20:18:25,486 INFO L471 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) [2022-02-23 20:18:25,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 5404 transitions. [2022-02-23 20:18:25,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-02-23 20:18:25,490 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:25,490 INFO L514 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, 1] [2022-02-23 20:18:25,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 20:18:25,491 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:25,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1277534805, now seen corresponding path program 1 times [2022-02-23 20:18:25,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:25,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322849488] [2022-02-23 20:18:25,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:25,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-02-23 20:18:25,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:25,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322849488] [2022-02-23 20:18:25,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322849488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:25,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:25,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:25,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616420703] [2022-02-23 20:18:25,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:25,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:25,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:25,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:25,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:25,704 INFO L87 Difference]: Start difference. First operand 3701 states and 5404 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:26,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:27,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:29,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:29,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:29,833 INFO L93 Difference]: Finished difference Result 4215 states and 6153 transitions. [2022-02-23 20:18:29,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:29,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-02-23 20:18:29,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:29,839 INFO L225 Difference]: With dead ends: 4215 [2022-02-23 20:18:29,839 INFO L226 Difference]: Without dead ends: 4215 [2022-02-23 20:18:29,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:29,839 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:29,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:18:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4215 states. [2022-02-23 20:18:29,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4215 to 4215. [2022-02-23 20:18:29,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4215 states, 4210 states have (on average 1.4605700712589074) internal successors, (6149), 4210 states have internal predecessors, (6149), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 6153 transitions. [2022-02-23 20:18:29,886 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 6153 transitions. Word has length 276 [2022-02-23 20:18:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:29,887 INFO L470 AbstractCegarLoop]: Abstraction has 4215 states and 6153 transitions. [2022-02-23 20:18:29,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 6153 transitions. [2022-02-23 20:18:29,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-02-23 20:18:29,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:29,894 INFO L514 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, 1] [2022-02-23 20:18:29,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 20:18:29,894 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:29,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1401608052, now seen corresponding path program 1 times [2022-02-23 20:18:29,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:29,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983346206] [2022-02-23 20:18:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:29,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:30,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-02-23 20:18:30,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:30,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983346206] [2022-02-23 20:18:30,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983346206] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:30,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:30,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:30,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797223172] [2022-02-23 20:18:30,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:30,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:30,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:30,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:30,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:30,084 INFO L87 Difference]: Start difference. First operand 4215 states and 6153 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:31,337 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 [] [2022-02-23 20:18:33,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:34,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:34,678 INFO L93 Difference]: Finished difference Result 4703 states and 6862 transitions. [2022-02-23 20:18:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:34,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-02-23 20:18:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:34,685 INFO L225 Difference]: With dead ends: 4703 [2022-02-23 20:18:34,685 INFO L226 Difference]: Without dead ends: 4703 [2022-02-23 20:18:34,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:34,686 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:34,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:18:34,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states. [2022-02-23 20:18:34,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 4703. [2022-02-23 20:18:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4703 states, 4698 states have (on average 1.4597701149425288) internal successors, (6858), 4698 states have internal predecessors, (6858), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4703 states to 4703 states and 6862 transitions. [2022-02-23 20:18:34,785 INFO L78 Accepts]: Start accepts. Automaton has 4703 states and 6862 transitions. Word has length 276 [2022-02-23 20:18:34,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:34,786 INFO L470 AbstractCegarLoop]: Abstraction has 4703 states and 6862 transitions. [2022-02-23 20:18:34,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:34,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4703 states and 6862 transitions. [2022-02-23 20:18:34,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-02-23 20:18:34,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:34,804 INFO L514 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:34,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 20:18:34,804 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:34,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash -70707793, now seen corresponding path program 1 times [2022-02-23 20:18:34,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:34,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231344989] [2022-02-23 20:18:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:34,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2022-02-23 20:18:34,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:34,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231344989] [2022-02-23 20:18:34,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231344989] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:34,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:34,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:34,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468608822] [2022-02-23 20:18:34,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:34,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:34,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:34,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:34,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:34,969 INFO L87 Difference]: Start difference. First operand 4703 states and 6862 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:36,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:37,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:37,719 INFO L93 Difference]: Finished difference Result 5224 states and 7630 transitions. [2022-02-23 20:18:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:37,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 359 [2022-02-23 20:18:37,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:37,726 INFO L225 Difference]: With dead ends: 5224 [2022-02-23 20:18:37,727 INFO L226 Difference]: Without dead ends: 5224 [2022-02-23 20:18:37,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:37,727 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:37,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-23 20:18:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5224 states. [2022-02-23 20:18:37,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5224 to 5224. [2022-02-23 20:18:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5219 states have (on average 1.4611994634987546) internal successors, (7626), 5219 states have internal predecessors, (7626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 7630 transitions. [2022-02-23 20:18:37,769 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 7630 transitions. Word has length 359 [2022-02-23 20:18:37,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:37,769 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 7630 transitions. [2022-02-23 20:18:37,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 7630 transitions. [2022-02-23 20:18:37,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-02-23 20:18:37,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:37,776 INFO L514 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, 1] [2022-02-23 20:18:37,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-23 20:18:37,776 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:37,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:37,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1935497870, now seen corresponding path program 1 times [2022-02-23 20:18:37,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:37,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009754971] [2022-02-23 20:18:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:37,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-02-23 20:18:37,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:37,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009754971] [2022-02-23 20:18:37,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009754971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:37,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:37,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:37,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372433188] [2022-02-23 20:18:37,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:37,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:37,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:37,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:37,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:37,963 INFO L87 Difference]: Start difference. First operand 5224 states and 7630 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:39,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:41,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:42,017 INFO L93 Difference]: Finished difference Result 5739 states and 8380 transitions. [2022-02-23 20:18:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:42,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-02-23 20:18:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:42,064 INFO L225 Difference]: With dead ends: 5739 [2022-02-23 20:18:42,065 INFO L226 Difference]: Without dead ends: 5739 [2022-02-23 20:18:42,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:42,065 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:42,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:18:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5739 states. [2022-02-23 20:18:42,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5739 to 5739. [2022-02-23 20:18:42,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 5734 states have (on average 1.4607603767003836) internal successors, (8376), 5734 states have internal predecessors, (8376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:42,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 8380 transitions. [2022-02-23 20:18:42,109 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 8380 transitions. Word has length 399 [2022-02-23 20:18:42,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:42,109 INFO L470 AbstractCegarLoop]: Abstraction has 5739 states and 8380 transitions. [2022-02-23 20:18:42,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 8380 transitions. [2022-02-23 20:18:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-02-23 20:18:42,116 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:42,116 INFO L514 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, 1, 1] [2022-02-23 20:18:42,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-23 20:18:42,116 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:42,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:42,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1383950275, now seen corresponding path program 1 times [2022-02-23 20:18:42,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:42,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744889999] [2022-02-23 20:18:42,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:42,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-02-23 20:18:42,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:42,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744889999] [2022-02-23 20:18:42,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744889999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:42,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:42,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:42,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231888692] [2022-02-23 20:18:42,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:42,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:42,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:42,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:42,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:42,308 INFO L87 Difference]: Start difference. First operand 5739 states and 8380 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:44,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:44,164 INFO L93 Difference]: Finished difference Result 6222 states and 9082 transitions. [2022-02-23 20:18:44,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:44,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 400 [2022-02-23 20:18:44,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:44,210 INFO L225 Difference]: With dead ends: 6222 [2022-02-23 20:18:44,210 INFO L226 Difference]: Without dead ends: 6222 [2022-02-23 20:18:44,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:44,211 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:44,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 20:18:44,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2022-02-23 20:18:44,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 6222. [2022-02-23 20:18:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6222 states, 6217 states have (on average 1.4601898021553803) internal successors, (9078), 6217 states have internal predecessors, (9078), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 9082 transitions. [2022-02-23 20:18:44,274 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 9082 transitions. Word has length 400 [2022-02-23 20:18:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:44,274 INFO L470 AbstractCegarLoop]: Abstraction has 6222 states and 9082 transitions. [2022-02-23 20:18:44,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 9082 transitions. [2022-02-23 20:18:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-23 20:18:44,284 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:44,284 INFO L514 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, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:44,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-23 20:18:44,284 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1926651641, now seen corresponding path program 1 times [2022-02-23 20:18:44,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:44,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114756752] [2022-02-23 20:18:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:44,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:44,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2132 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-02-23 20:18:44,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:44,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114756752] [2022-02-23 20:18:44,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114756752] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:44,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:44,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:44,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742039508] [2022-02-23 20:18:44,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:44,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:44,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:44,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:44,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:44,552 INFO L87 Difference]: Start difference. First operand 6222 states and 9082 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 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) [2022-02-23 20:18:45,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:47,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:49,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:49,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:49,453 INFO L93 Difference]: Finished difference Result 6743 states and 9853 transitions. [2022-02-23 20:18:49,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:49,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 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 484 [2022-02-23 20:18:49,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:49,465 INFO L225 Difference]: With dead ends: 6743 [2022-02-23 20:18:49,465 INFO L226 Difference]: Without dead ends: 6743 [2022-02-23 20:18:49,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:49,465 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:49,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 382 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:18:49,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6743 states. [2022-02-23 20:18:49,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6743 to 6743. [2022-02-23 20:18:49,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6738 states have (on average 1.4617097061442565) internal successors, (9849), 6738 states have internal predecessors, (9849), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 9853 transitions. [2022-02-23 20:18:49,570 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 9853 transitions. Word has length 484 [2022-02-23 20:18:49,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:49,570 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 9853 transitions. [2022-02-23 20:18:49,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 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) [2022-02-23 20:18:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 9853 transitions. [2022-02-23 20:18:49,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-02-23 20:18:49,592 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:49,592 INFO L514 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, 1] [2022-02-23 20:18:49,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-23 20:18:49,593 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1218320683, now seen corresponding path program 1 times [2022-02-23 20:18:49,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:49,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089296867] [2022-02-23 20:18:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:49,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-02-23 20:18:49,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:49,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089296867] [2022-02-23 20:18:49,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089296867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:49,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:49,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:18:49,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057112592] [2022-02-23 20:18:49,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:49,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:18:49,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:49,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:18:49,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:18:49,933 INFO L87 Difference]: Start difference. First operand 6743 states and 9853 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) [2022-02-23 20:18:51,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:53,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:55,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:57,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:57,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:57,637 INFO L93 Difference]: Finished difference Result 7819 states and 11343 transitions. [2022-02-23 20:18:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:18:57,638 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 525 [2022-02-23 20:18:57,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:57,652 INFO L225 Difference]: With dead ends: 7819 [2022-02-23 20:18:57,653 INFO L226 Difference]: Without dead ends: 7819 [2022-02-23 20:18:57,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:18:57,653 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 68 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:57,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 705 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 597 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-23 20:18:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7819 states. [2022-02-23 20:18:57,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7819 to 7276. [2022-02-23 20:18:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7276 states, 7271 states have (on average 1.4618346857378628) internal successors, (10629), 7271 states have internal predecessors, (10629), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7276 states to 7276 states and 10633 transitions. [2022-02-23 20:18:57,721 INFO L78 Accepts]: Start accepts. Automaton has 7276 states and 10633 transitions. Word has length 525 [2022-02-23 20:18:57,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:57,721 INFO L470 AbstractCegarLoop]: Abstraction has 7276 states and 10633 transitions. [2022-02-23 20:18:57,721 INFO L471 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) [2022-02-23 20:18:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7276 states and 10633 transitions. [2022-02-23 20:18:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-02-23 20:18:57,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:57,731 INFO L514 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, 1] [2022-02-23 20:18:57,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-23 20:18:57,731 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:57,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:57,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1646733805, now seen corresponding path program 1 times [2022-02-23 20:18:57,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:57,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561992129] [2022-02-23 20:18:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:57,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-02-23 20:18:57,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:57,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561992129] [2022-02-23 20:18:57,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561992129] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:57,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:57,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:57,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435066768] [2022-02-23 20:18:57,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:57,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:57,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:57,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:57,993 INFO L87 Difference]: Start difference. First operand 7276 states and 10633 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:59,678 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 [] [2022-02-23 20:19:01,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:02,960 INFO L93 Difference]: Finished difference Result 7833 states and 11444 transitions. [2022-02-23 20:19:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:19:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-02-23 20:19:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:02,967 INFO L225 Difference]: With dead ends: 7833 [2022-02-23 20:19:02,967 INFO L226 Difference]: Without dead ends: 7833 [2022-02-23 20:19:02,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:19:02,968 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:02,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:19:02,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-02-23 20:19:03,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7833. [2022-02-23 20:19:03,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7833 states, 7828 states have (on average 1.4614205416453756) internal successors, (11440), 7828 states have internal predecessors, (11440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7833 states to 7833 states and 11444 transitions. [2022-02-23 20:19:03,049 INFO L78 Accepts]: Start accepts. Automaton has 7833 states and 11444 transitions. Word has length 525 [2022-02-23 20:19:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:03,050 INFO L470 AbstractCegarLoop]: Abstraction has 7833 states and 11444 transitions. [2022-02-23 20:19:03,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 7833 states and 11444 transitions. [2022-02-23 20:19:03,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-23 20:19:03,086 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:03,086 INFO L514 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, 1, 1] [2022-02-23 20:19:03,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-23 20:19:03,086 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:03,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:03,087 INFO L85 PathProgramCache]: Analyzing trace with hash -107494532, now seen corresponding path program 1 times [2022-02-23 20:19:03,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:03,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086685922] [2022-02-23 20:19:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:03,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:03,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-02-23 20:19:03,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:03,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086685922] [2022-02-23 20:19:03,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086685922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:03,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:03,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:19:03,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344155122] [2022-02-23 20:19:03,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:03,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:19:03,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:03,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:19:03,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:19:03,356 INFO L87 Difference]: Start difference. First operand 7833 states and 11444 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:06,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:06,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:06,834 INFO L93 Difference]: Finished difference Result 8358 states and 12207 transitions. [2022-02-23 20:19:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:19:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 526 [2022-02-23 20:19:06,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:06,841 INFO L225 Difference]: With dead ends: 8358 [2022-02-23 20:19:06,842 INFO L226 Difference]: Without dead ends: 8358 [2022-02-23 20:19:06,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:19:06,842 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:06,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-23 20:19:06,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8358 states. [2022-02-23 20:19:06,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8358 to 8358. [2022-02-23 20:19:06,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8358 states, 8353 states have (on average 1.4609122470968514) internal successors, (12203), 8353 states have internal predecessors, (12203), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:06,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8358 states to 8358 states and 12207 transitions. [2022-02-23 20:19:06,943 INFO L78 Accepts]: Start accepts. Automaton has 8358 states and 12207 transitions. Word has length 526 [2022-02-23 20:19:06,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:06,944 INFO L470 AbstractCegarLoop]: Abstraction has 8358 states and 12207 transitions. [2022-02-23 20:19:06,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:06,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8358 states and 12207 transitions. [2022-02-23 20:19:06,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-02-23 20:19:06,955 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:06,955 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:06,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-23 20:19:06,955 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:06,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:06,955 INFO L85 PathProgramCache]: Analyzing trace with hash -591823516, now seen corresponding path program 1 times [2022-02-23 20:19:06,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:06,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121028083] [2022-02-23 20:19:06,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:06,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3438 backedges. 910 proven. 0 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2022-02-23 20:19:07,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:07,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121028083] [2022-02-23 20:19:07,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121028083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:07,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:07,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:19:07,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996513970] [2022-02-23 20:19:07,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:07,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:19:07,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:07,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:19:07,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:19:07,316 INFO L87 Difference]: Start difference. First operand 8358 states and 12207 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 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) [2022-02-23 20:19:08,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:10,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:11,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:11,726 INFO L93 Difference]: Finished difference Result 8920 states and 13041 transitions. [2022-02-23 20:19:11,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:19:11,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 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 612 [2022-02-23 20:19:11,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:11,735 INFO L225 Difference]: With dead ends: 8920 [2022-02-23 20:19:11,735 INFO L226 Difference]: Without dead ends: 8920 [2022-02-23 20:19:11,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:19:11,739 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:11,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-23 20:19:11,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8920 states. [2022-02-23 20:19:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8920 to 8920. [2022-02-23 20:19:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 8915 states have (on average 1.462366797532249) internal successors, (13037), 8915 states have internal predecessors, (13037), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 13041 transitions. [2022-02-23 20:19:11,859 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 13041 transitions. Word has length 612 [2022-02-23 20:19:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:11,859 INFO L470 AbstractCegarLoop]: Abstraction has 8920 states and 13041 transitions. [2022-02-23 20:19:11,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 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) [2022-02-23 20:19:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 13041 transitions. [2022-02-23 20:19:11,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2022-02-23 20:19:11,893 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:11,893 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:11,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-23 20:19:11,894 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:11,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:11,895 INFO L85 PathProgramCache]: Analyzing trace with hash 331960158, now seen corresponding path program 1 times [2022-02-23 20:19:11,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:11,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402903439] [2022-02-23 20:19:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:11,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1710 proven. 48 refuted. 0 times theorem prover too weak. 2188 trivial. 0 not checked. [2022-02-23 20:19:12,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:12,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402903439] [2022-02-23 20:19:12,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402903439] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:12,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283892017] [2022-02-23 20:19:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:12,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:12,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:12,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:12,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 20:19:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:13,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-23 20:19:13,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:19:14,072 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:14,073 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 [2022-02-23 20:19:14,118 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:19:14,118 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 [2022-02-23 20:19:14,377 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 [2022-02-23 20:19:14,637 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 [2022-02-23 20:19:14,659 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 [2022-02-23 20:19:14,662 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 [2022-02-23 20:19:14,689 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-23 20:19:14,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-02-23 20:19:14,740 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:19:14,740 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 34 treesize of output 36 [2022-02-23 20:19:14,936 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:19:14,936 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 [2022-02-23 20:19:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1705 proven. 256 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked. [2022-02-23 20:19:15,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:19:15,379 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 [2022-02-23 20:19:15,381 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 [2022-02-23 20:19:17,072 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 190 treesize of output 172 [2022-02-23 20:19:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 2240 trivial. 0 not checked. [2022-02-23 20:19:17,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283892017] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:17,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:19:17,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 11] total 17 [2022-02-23 20:19:17,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696752962] [2022-02-23 20:19:17,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:17,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:19:17,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:17,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:19:17,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-02-23 20:19:17,515 INFO L87 Difference]: Start difference. First operand 8920 states and 13041 transitions. Second operand has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:19,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:21,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:26,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:26,302 INFO L93 Difference]: Finished difference Result 15864 states and 23195 transitions. [2022-02-23 20:19:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:19:26,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 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 654 [2022-02-23 20:19:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:26,320 INFO L225 Difference]: With dead ends: 15864 [2022-02-23 20:19:26,320 INFO L226 Difference]: Without dead ends: 15864 [2022-02-23 20:19:26,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1326 GetRequests, 1307 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2022-02-23 20:19:26,321 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 278 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 79 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:26,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 1152 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 632 Invalid, 1 Unknown, 114 Unchecked, 4.6s Time] [2022-02-23 20:19:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15864 states. [2022-02-23 20:19:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15864 to 13715. [2022-02-23 20:19:26,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13715 states, 13710 states have (on average 1.47490882567469) internal successors, (20221), 13710 states have internal predecessors, (20221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13715 states to 13715 states and 20225 transitions. [2022-02-23 20:19:26,453 INFO L78 Accepts]: Start accepts. Automaton has 13715 states and 20225 transitions. Word has length 654 [2022-02-23 20:19:26,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:26,453 INFO L470 AbstractCegarLoop]: Abstraction has 13715 states and 20225 transitions. [2022-02-23 20:19:26,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13715 states and 20225 transitions. [2022-02-23 20:19:26,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-02-23 20:19:26,470 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:26,470 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:26,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-23 20:19:26,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:26,676 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:26,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2044655492, now seen corresponding path program 1 times [2022-02-23 20:19:26,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:26,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436212447] [2022-02-23 20:19:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:26,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2022-02-23 20:19:27,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:27,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436212447] [2022-02-23 20:19:27,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436212447] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:27,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:27,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:27,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241941219] [2022-02-23 20:19:27,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:27,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:27,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:27,009 INFO L87 Difference]: Start difference. First operand 13715 states and 20225 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:28,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:30,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:32,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:34,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:35,243 INFO L93 Difference]: Finished difference Result 14762 states and 21608 transitions. [2022-02-23 20:19:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:35,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 656 [2022-02-23 20:19:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:35,260 INFO L225 Difference]: With dead ends: 14762 [2022-02-23 20:19:35,260 INFO L226 Difference]: Without dead ends: 14762 [2022-02-23 20:19:35,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:35,261 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 66 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:35,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 703 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 592 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-23 20:19:35,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14762 states. [2022-02-23 20:19:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14762 to 13731. [2022-02-23 20:19:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13731 states, 13726 states have (on average 1.4743552382340084) internal successors, (20237), 13726 states have internal predecessors, (20237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:35,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13731 states to 13731 states and 20241 transitions. [2022-02-23 20:19:35,439 INFO L78 Accepts]: Start accepts. Automaton has 13731 states and 20241 transitions. Word has length 656 [2022-02-23 20:19:35,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:35,439 INFO L470 AbstractCegarLoop]: Abstraction has 13731 states and 20241 transitions. [2022-02-23 20:19:35,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:35,440 INFO L276 IsEmpty]: Start isEmpty. Operand 13731 states and 20241 transitions. [2022-02-23 20:19:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-02-23 20:19:35,460 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:35,461 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:35,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-23 20:19:35,461 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:35,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:35,461 INFO L85 PathProgramCache]: Analyzing trace with hash 88451326, now seen corresponding path program 1 times [2022-02-23 20:19:35,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:35,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489678702] [2022-02-23 20:19:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:35,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2542 proven. 46 refuted. 0 times theorem prover too weak. 2050 trivial. 0 not checked. [2022-02-23 20:19:35,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:35,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489678702] [2022-02-23 20:19:35,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489678702] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:35,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746854044] [2022-02-23 20:19:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:35,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:35,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:35,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:35,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 20:19:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:37,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 3117 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-23 20:19:37,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:19:37,252 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:37,252 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 [2022-02-23 20:19:37,302 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:19:37,302 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 [2022-02-23 20:19:37,632 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 [2022-02-23 20:19:37,771 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:37,772 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 [2022-02-23 20:19:37,880 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 [2022-02-23 20:19:38,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2537 proven. 238 refuted. 0 times theorem prover too weak. 1863 trivial. 0 not checked. [2022-02-23 20:19:38,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:19:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2022-02-23 20:19:38,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746854044] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:38,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:19:38,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-23 20:19:38,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464870371] [2022-02-23 20:19:38,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:38,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:19:38,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:38,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:19:38,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 20:19:38,668 INFO L87 Difference]: Start difference. First operand 13731 states and 20241 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:40,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:40,892 INFO L93 Difference]: Finished difference Result 15570 states and 22723 transitions. [2022-02-23 20:19:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:19:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 698 [2022-02-23 20:19:40,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:40,910 INFO L225 Difference]: With dead ends: 15570 [2022-02-23 20:19:40,910 INFO L226 Difference]: Without dead ends: 15570 [2022-02-23 20:19:40,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1406 GetRequests, 1396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 20:19:40,927 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 120 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:40,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 597 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 20:19:40,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15570 states. [2022-02-23 20:19:41,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15570 to 13747. [2022-02-23 20:19:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13747 states, 13742 states have (on average 1.4726386261097366) internal successors, (20237), 13742 states have internal predecessors, (20237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13747 states to 13747 states and 20241 transitions. [2022-02-23 20:19:41,076 INFO L78 Accepts]: Start accepts. Automaton has 13747 states and 20241 transitions. Word has length 698 [2022-02-23 20:19:41,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:41,076 INFO L470 AbstractCegarLoop]: Abstraction has 13747 states and 20241 transitions. [2022-02-23 20:19:41,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:41,082 INFO L276 IsEmpty]: Start isEmpty. Operand 13747 states and 20241 transitions. [2022-02-23 20:19:41,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-02-23 20:19:41,100 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:41,100 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:41,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 20:19:41,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-02-23 20:19:41,324 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1005383334, now seen corresponding path program 1 times [2022-02-23 20:19:41,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:41,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677742058] [2022-02-23 20:19:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:41,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:41,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4611 backedges. 2511 proven. 0 refuted. 0 times theorem prover too weak. 2100 trivial. 0 not checked. [2022-02-23 20:19:41,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:41,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677742058] [2022-02-23 20:19:41,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677742058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:41,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:41,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:41,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284324577] [2022-02-23 20:19:41,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:41,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:41,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:41,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:41,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:41,652 INFO L87 Difference]: Start difference. First operand 13747 states and 20241 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) [2022-02-23 20:19:43,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:45,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:47,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:48,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:48,159 INFO L93 Difference]: Finished difference Result 14666 states and 21426 transitions. [2022-02-23 20:19:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:48,159 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 700 [2022-02-23 20:19:48,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:48,171 INFO L225 Difference]: With dead ends: 14666 [2022-02-23 20:19:48,171 INFO L226 Difference]: Without dead ends: 14666 [2022-02-23 20:19:48,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:48,172 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 80 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:48,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 695 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 579 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-02-23 20:19:48,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-02-23 20:19:48,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 13747. [2022-02-23 20:19:48,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13747 states, 13742 states have (on average 1.470601076990249) internal successors, (20209), 13742 states have internal predecessors, (20209), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13747 states to 13747 states and 20213 transitions. [2022-02-23 20:19:48,274 INFO L78 Accepts]: Start accepts. Automaton has 13747 states and 20213 transitions. Word has length 700 [2022-02-23 20:19:48,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:48,274 INFO L470 AbstractCegarLoop]: Abstraction has 13747 states and 20213 transitions. [2022-02-23 20:19:48,274 INFO L471 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) [2022-02-23 20:19:48,274 INFO L276 IsEmpty]: Start isEmpty. Operand 13747 states and 20213 transitions. [2022-02-23 20:19:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-02-23 20:19:48,331 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:48,331 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:48,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-23 20:19:48,331 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:48,332 INFO L85 PathProgramCache]: Analyzing trace with hash -539237120, now seen corresponding path program 1 times [2022-02-23 20:19:48,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:48,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137745141] [2022-02-23 20:19:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:48,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:48,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4645 backedges. 2441 proven. 0 refuted. 0 times theorem prover too weak. 2204 trivial. 0 not checked. [2022-02-23 20:19:48,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:48,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137745141] [2022-02-23 20:19:48,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137745141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:48,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:48,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:48,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755258048] [2022-02-23 20:19:48,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:48,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:48,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:48,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:48,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:48,556 INFO L87 Difference]: Start difference. First operand 13747 states and 20213 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:50,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:52,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:54,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:55,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:55,415 INFO L93 Difference]: Finished difference Result 14867 states and 21739 transitions. [2022-02-23 20:19:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:55,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 700 [2022-02-23 20:19:55,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:55,433 INFO L225 Difference]: With dead ends: 14867 [2022-02-23 20:19:55,433 INFO L226 Difference]: Without dead ends: 14867 [2022-02-23 20:19:55,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:55,434 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 28 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:55,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 639 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-23 20:19:55,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14867 states. [2022-02-23 20:19:55,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14867 to 14475. [2022-02-23 20:19:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14475 states, 14470 states have (on average 1.4662750518313752) internal successors, (21217), 14470 states have internal predecessors, (21217), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:55,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14475 states to 14475 states and 21221 transitions. [2022-02-23 20:19:55,603 INFO L78 Accepts]: Start accepts. Automaton has 14475 states and 21221 transitions. Word has length 700 [2022-02-23 20:19:55,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:55,603 INFO L470 AbstractCegarLoop]: Abstraction has 14475 states and 21221 transitions. [2022-02-23 20:19:55,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 14475 states and 21221 transitions. [2022-02-23 20:19:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-02-23 20:19:55,621 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:55,621 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:55,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-23 20:19:55,622 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:55,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:55,622 INFO L85 PathProgramCache]: Analyzing trace with hash 876144030, now seen corresponding path program 1 times [2022-02-23 20:19:55,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:55,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865440958] [2022-02-23 20:19:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:55,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 2525 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2022-02-23 20:19:55,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:55,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865440958] [2022-02-23 20:19:55,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865440958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:55,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:55,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:55,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603633279] [2022-02-23 20:19:55,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:55,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:55,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:55,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:55,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:55,873 INFO L87 Difference]: Start difference. First operand 14475 states and 21221 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:57,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:58,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:58,386 INFO L93 Difference]: Finished difference Result 14859 states and 21738 transitions. [2022-02-23 20:19:58,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:58,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 706 [2022-02-23 20:19:58,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:58,401 INFO L225 Difference]: With dead ends: 14859 [2022-02-23 20:19:58,401 INFO L226 Difference]: Without dead ends: 14859 [2022-02-23 20:19:58,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:58,402 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 42 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:58,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 654 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:19:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14859 states. [2022-02-23 20:19:58,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14859 to 14475. [2022-02-23 20:19:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14475 states, 14470 states have (on average 1.4651693158258465) internal successors, (21201), 14470 states have internal predecessors, (21201), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14475 states to 14475 states and 21205 transitions. [2022-02-23 20:19:58,529 INFO L78 Accepts]: Start accepts. Automaton has 14475 states and 21205 transitions. Word has length 706 [2022-02-23 20:19:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:58,529 INFO L470 AbstractCegarLoop]: Abstraction has 14475 states and 21205 transitions. [2022-02-23 20:19:58,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 14475 states and 21205 transitions. [2022-02-23 20:19:58,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-02-23 20:19:58,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:58,546 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:58,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-23 20:19:58,547 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:58,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:58,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1995830594, now seen corresponding path program 1 times [2022-02-23 20:19:58,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:58,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366880426] [2022-02-23 20:19:58,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:58,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2052 proven. 363 refuted. 0 times theorem prover too weak. 2444 trivial. 0 not checked. [2022-02-23 20:19:59,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:59,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366880426] [2022-02-23 20:19:59,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366880426] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:59,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065140701] [2022-02-23 20:19:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:59,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:59,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:59,452 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:59,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 20:20:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:00,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 3123 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-23 20:20:00,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:20:00,906 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:20:00,906 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 [2022-02-23 20:20:01,180 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:20:01,180 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 [2022-02-23 20:20:01,267 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:20:01,267 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 [2022-02-23 20:20:01,422 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 [2022-02-23 20:20:01,442 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 [2022-02-23 20:20:01,444 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 [2022-02-23 20:20:01,457 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-23 20:20:01,457 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 24 treesize of output 33 [2022-02-23 20:20:01,541 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-23 20:20:01,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-02-23 20:20:01,616 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:20:01,617 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 24 treesize of output 23 [2022-02-23 20:20:01,684 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 [2022-02-23 20:20:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2445 proven. 215 refuted. 0 times theorem prover too weak. 2199 trivial. 0 not checked. [2022-02-23 20:20:01,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:20:02,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-23 20:20:02,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-23 20:20:02,956 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 74 treesize of output 72 [2022-02-23 20:20:02,959 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 74 treesize of output 70 [2022-02-23 20:20:02,960 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 80 treesize of output 64 [2022-02-23 20:20:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2258 proven. 0 refuted. 0 times theorem prover too weak. 2601 trivial. 0 not checked. [2022-02-23 20:20:03,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065140701] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:20:03,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:20:03,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16, 9] total 24 [2022-02-23 20:20:03,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643407949] [2022-02-23 20:20:03,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:03,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:20:03,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:03,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:20:03,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2022-02-23 20:20:03,383 INFO L87 Difference]: Start difference. First operand 14475 states and 21205 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:03,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:03,532 INFO L93 Difference]: Finished difference Result 16425 states and 24140 transitions. [2022-02-23 20:20:03,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:20:03,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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 712 [2022-02-23 20:20:03,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:03,550 INFO L225 Difference]: With dead ends: 16425 [2022-02-23 20:20:03,551 INFO L226 Difference]: Without dead ends: 16425 [2022-02-23 20:20:03,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1448 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-02-23 20:20:03,552 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 228 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:03,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 757 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 124 Unchecked, 0.1s Time] [2022-02-23 20:20:03,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16425 states. [2022-02-23 20:20:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16425 to 15499. [2022-02-23 20:20:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15499 states, 15494 states have (on average 1.4775396927843036) internal successors, (22893), 15494 states have internal predecessors, (22893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:03,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15499 states to 15499 states and 22897 transitions. [2022-02-23 20:20:03,735 INFO L78 Accepts]: Start accepts. Automaton has 15499 states and 22897 transitions. Word has length 712 [2022-02-23 20:20:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:03,736 INFO L470 AbstractCegarLoop]: Abstraction has 15499 states and 22897 transitions. [2022-02-23 20:20:03,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 15499 states and 22897 transitions. [2022-02-23 20:20:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-02-23 20:20:03,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:03,754 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:03,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-23 20:20:03,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:20:03,964 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 196231374, now seen corresponding path program 1 times [2022-02-23 20:20:03,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:03,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141975296] [2022-02-23 20:20:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:03,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4839 backedges. 2578 proven. 0 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2022-02-23 20:20:04,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:04,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141975296] [2022-02-23 20:20:04,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141975296] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:20:04,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:20:04,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:20:04,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101054124] [2022-02-23 20:20:04,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:04,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:20:04,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:20:04,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:20:04,219 INFO L87 Difference]: Start difference. First operand 15499 states and 22897 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:06,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:08,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:09,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:09,228 INFO L93 Difference]: Finished difference Result 17119 states and 25215 transitions. [2022-02-23 20:20:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:20:09,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-02-23 20:20:09,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:09,246 INFO L225 Difference]: With dead ends: 17119 [2022-02-23 20:20:09,246 INFO L226 Difference]: Without dead ends: 17119 [2022-02-23 20:20:09,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:20:09,247 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 44 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:09,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 659 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 534 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-23 20:20:09,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17119 states. [2022-02-23 20:20:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17119 to 16363. [2022-02-23 20:20:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16363 states, 16358 states have (on average 1.4770143049272528) internal successors, (24161), 16358 states have internal predecessors, (24161), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:09,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16363 states to 16363 states and 24165 transitions. [2022-02-23 20:20:09,386 INFO L78 Accepts]: Start accepts. Automaton has 16363 states and 24165 transitions. Word has length 712 [2022-02-23 20:20:09,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:09,386 INFO L470 AbstractCegarLoop]: Abstraction has 16363 states and 24165 transitions. [2022-02-23 20:20:09,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 16363 states and 24165 transitions. [2022-02-23 20:20:09,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-02-23 20:20:09,404 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:09,404 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:09,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-23 20:20:09,405 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:09,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:09,405 INFO L85 PathProgramCache]: Analyzing trace with hash 773050850, now seen corresponding path program 1 times [2022-02-23 20:20:09,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:09,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566181005] [2022-02-23 20:20:09,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:09,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:11,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1548 proven. 3036 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-02-23 20:20:11,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:11,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566181005] [2022-02-23 20:20:11,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566181005] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:20:11,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845532509] [2022-02-23 20:20:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:11,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:20:11,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:20:12,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:20:12,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 20:20:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:13,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 93 conjunts are in the unsatisfiable core [2022-02-23 20:20:13,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:20:13,545 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:20:13,545 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 [2022-02-23 20:20:13,669 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:20:13,669 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 [2022-02-23 20:20:13,926 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 [2022-02-23 20:20:14,158 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 [2022-02-23 20:20:14,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:14,225 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 [2022-02-23 20:20:14,248 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-23 20:20:14,248 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 [2022-02-23 20:20:14,256 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:20:14,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-23 20:20:14,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:14,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-23 20:20:14,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:14,820 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-23 20:20:14,820 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 [2022-02-23 20:20:14,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:14,825 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 [2022-02-23 20:20:14,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:14,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:20:14,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:14,881 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 [2022-02-23 20:20:14,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:14,896 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:20:14,897 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 [2022-02-23 20:20:15,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:15,527 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-23 20:20:15,528 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 [2022-02-23 20:20:15,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:15,560 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-23 20:20:15,560 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 [2022-02-23 20:20:15,610 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-02-23 20:20:15,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-02-23 20:20:27,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,440 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 194 treesize of output 176 [2022-02-23 20:20:27,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,453 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 194 treesize of output 176 [2022-02-23 20:20:27,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:27,491 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-02-23 20:20:27,491 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 194 treesize of output 204 [2022-02-23 20:20:34,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-02-23 20:20:34,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-02-23 20:20:34,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,411 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-23 20:20:34,411 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 383 treesize of output 374 [2022-02-23 20:20:34,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-02-23 20:20:34,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:34,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-02-23 20:20:34,882 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-02-23 20:20:34,882 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 116 treesize of output 144 [2022-02-23 20:20:34,979 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:20:34,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-23 20:20:35,165 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:20:35,165 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 [2022-02-23 20:20:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1764 proven. 573 refuted. 0 times theorem prover too weak. 2522 trivial. 0 not checked. [2022-02-23 20:20:35,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:20:37,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:20:37,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:20:37,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-02-23 20:20:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1895 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-02-23 20:20:38,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845532509] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:20:38,669 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:20:38,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 20, 13] total 54 [2022-02-23 20:20:38,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077091797] [2022-02-23 20:20:38,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:20:38,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-23 20:20:38,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:38,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-23 20:20:38,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=2530, Unknown=0, NotChecked=0, Total=2862 [2022-02-23 20:20:38,671 INFO L87 Difference]: Start difference. First operand 16363 states and 24165 transitions. Second operand has 54 states, 54 states have (on average 16.555555555555557) internal successors, (894), 53 states have internal predecessors, (894), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:40,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:42,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:44,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:46,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:48,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:49,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:51,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:54,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:56,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:58,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:01,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:03,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:05,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:23:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:23:45,566 INFO L93 Difference]: Finished difference Result 523006 states and 756480 transitions. [2022-02-23 20:23:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 941 states. [2022-02-23 20:23:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 16.555555555555557) internal successors, (894), 53 states have internal predecessors, (894), 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 712 [2022-02-23 20:23:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:23:46,824 INFO L225 Difference]: With dead ends: 523006 [2022-02-23 20:23:46,824 INFO L226 Difference]: Without dead ends: 522925 [2022-02-23 20:23:46,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2996 GetRequests, 1978 SyntacticMatches, 43 SemanticMatches, 975 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448951 ImplicationChecksByTransitivity, 85.2s TimeCoverageRelationStatistics Valid=64160, Invalid=889392, Unknown=0, NotChecked=0, Total=953552 [2022-02-23 20:23:46,949 INFO L933 BasicCegarLoop]: 2490 mSDtfsCounter, 13003 mSDsluCounter, 57865 mSDsCounter, 0 mSdLazyCounter, 58555 mSolverCounterSat, 2740 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13003 SdHoareTripleChecker+Valid, 60355 SdHoareTripleChecker+Invalid, 77582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2740 IncrementalHoareTripleChecker+Valid, 58555 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 16278 IncrementalHoareTripleChecker+Unchecked, 92.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:23:46,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13003 Valid, 60355 Invalid, 77582 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2740 Valid, 58555 Invalid, 9 Unknown, 16278 Unchecked, 92.6s Time] [2022-02-23 20:23:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522925 states. [2022-02-23 20:23:52,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522925 to 318372. [2022-02-23 20:23:52,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318372 states, 318367 states have (on average 1.481127126869305) internal successors, (471542), 318367 states have internal predecessors, (471542), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:23:53,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318372 states to 318372 states and 471546 transitions. [2022-02-23 20:23:53,497 INFO L78 Accepts]: Start accepts. Automaton has 318372 states and 471546 transitions. Word has length 712 [2022-02-23 20:23:53,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:23:53,498 INFO L470 AbstractCegarLoop]: Abstraction has 318372 states and 471546 transitions. [2022-02-23 20:23:53,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 16.555555555555557) internal successors, (894), 53 states have internal predecessors, (894), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:23:53,498 INFO L276 IsEmpty]: Start isEmpty. Operand 318372 states and 471546 transitions. [2022-02-23 20:23:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2022-02-23 20:23:54,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:23:54,052 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:23:54,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-23 20:23:54,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-02-23 20:23:54,268 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:23:54,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:23:54,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1043097478, now seen corresponding path program 1 times [2022-02-23 20:23:54,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:23:54,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574778462] [2022-02-23 20:23:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:23:54,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:23:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:23:54,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:23:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:23:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 3051 proven. 0 refuted. 0 times theorem prover too weak. 1808 trivial. 0 not checked. [2022-02-23 20:23:54,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:23:54,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574778462] [2022-02-23 20:23:54,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574778462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:23:54,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:23:54,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:23:54,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943478147] [2022-02-23 20:23:54,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:23:54,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:23:54,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:23:54,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:23:54,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:23:54,733 INFO L87 Difference]: Start difference. First operand 318372 states and 471546 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:23:55,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:23:57,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:23:58,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:00,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:24:00,543 INFO L93 Difference]: Finished difference Result 521836 states and 765214 transitions. [2022-02-23 20:24:00,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:24:00,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 717 [2022-02-23 20:24:00,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:24:01,732 INFO L225 Difference]: With dead ends: 521836 [2022-02-23 20:24:01,732 INFO L226 Difference]: Without dead ends: 521836 [2022-02-23 20:24:01,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:24:01,733 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 151 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:24:01,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 625 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-23 20:24:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521836 states. [2022-02-23 20:24:07,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521836 to 519589. [2022-02-23 20:24:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519589 states, 519584 states have (on average 1.4666617909712385) internal successors, (762054), 519584 states have internal predecessors, (762054), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:24:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519589 states to 519589 states and 762058 transitions. [2022-02-23 20:24:09,805 INFO L78 Accepts]: Start accepts. Automaton has 519589 states and 762058 transitions. Word has length 717 [2022-02-23 20:24:09,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:24:09,806 INFO L470 AbstractCegarLoop]: Abstraction has 519589 states and 762058 transitions. [2022-02-23 20:24:09,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:24:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand 519589 states and 762058 transitions. [2022-02-23 20:24:10,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2022-02-23 20:24:10,701 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:24:10,701 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:24:10,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-23 20:24:10,701 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:24:10,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:24:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1539916742, now seen corresponding path program 1 times [2022-02-23 20:24:10,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:24:10,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722675607] [2022-02-23 20:24:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:24:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:24:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:24:12,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:24:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:24:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 1539 proven. 3107 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-02-23 20:24:12,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:24:12,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722675607] [2022-02-23 20:24:12,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722675607] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:24:12,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338836060] [2022-02-23 20:24:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:24:12,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:24:12,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:24:12,688 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:24:12,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 20:24:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:24:14,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 3161 conjuncts, 101 conjunts are in the unsatisfiable core [2022-02-23 20:24:14,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:24:14,537 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:24:14,537 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 [2022-02-23 20:24:14,641 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:24:14,641 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 [2022-02-23 20:24:14,851 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 [2022-02-23 20:24:14,993 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 [2022-02-23 20:24:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:15,033 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 [2022-02-23 20:24:15,051 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-23 20:24:15,052 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 [2022-02-23 20:24:15,056 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:24:15,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-23 20:24:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:15,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-23 20:24:15,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:15,462 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-23 20:24:15,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:15,473 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-23 20:24:15,474 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 [2022-02-23 20:24:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:15,571 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:24:15,571 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 [2022-02-23 20:24:15,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:15,574 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 [2022-02-23 20:24:15,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:15,577 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 [2022-02-23 20:24:16,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:16,157 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-23 20:24:16,157 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 [2022-02-23 20:24:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:16,182 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-23 20:24:16,182 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 [2022-02-23 20:24:16,218 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-02-23 20:24:16,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-02-23 20:24:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,051 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 348 treesize of output 288 [2022-02-23 20:24:17,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:17,059 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 348 treesize of output 270 [2022-02-23 20:24:17,103 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-02-23 20:24:17,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 348 treesize of output 367 [2022-02-23 20:24:20,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,484 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 329 treesize of output 271 [2022-02-23 20:24:20,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,492 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 329 treesize of output 253 [2022-02-23 20:24:20,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,517 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-23 20:24:20,517 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 338 treesize of output 329 [2022-02-23 20:24:20,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,876 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 196 treesize of output 136 [2022-02-23 20:24:20,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:24:20,878 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 136 treesize of output 82 [2022-02-23 20:24:20,928 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-02-23 20:24:20,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 110 treesize of output 138 [2022-02-23 20:24:20,993 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:24:20,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-23 20:24:21,014 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-02-23 20:24:21,015 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 39 treesize of output 26 [2022-02-23 20:24:21,087 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:24:21,087 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 [2022-02-23 20:24:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 1768 proven. 575 refuted. 0 times theorem prover too weak. 2522 trivial. 0 not checked. [2022-02-23 20:24:21,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:24:23,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:24:23,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:24:23,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-02-23 20:24:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 1865 proven. 177 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-02-23 20:24:24,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338836060] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:24:24,545 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:24:24,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 13] total 51 [2022-02-23 20:24:24,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299183433] [2022-02-23 20:24:24,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:24:24,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-23 20:24:24,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:24:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-23 20:24:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=2228, Unknown=0, NotChecked=0, Total=2550 [2022-02-23 20:24:24,548 INFO L87 Difference]: Start difference. First operand 519589 states and 762058 transitions. Second operand has 51 states, 51 states have (on average 18.294117647058822) internal successors, (933), 50 states have internal predecessors, (933), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:24:27,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:29,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:31,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:33,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:36,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:37,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:38,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:40,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:42,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:44,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:46,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:47,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:49,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:51,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:53,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:55,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:24:56,885 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 []