/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:42:40,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:42:40,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:42:40,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:42:40,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:42:40,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:42:40,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:42:40,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:42:40,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:42:40,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:42:40,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:42:40,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:42:40,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:42:40,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:42:40,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:42:40,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:42:40,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:42:40,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:42:40,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:42:40,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:42:40,394 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:42:40,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:42:40,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:42:40,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:42:40,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:42:40,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 08:42:40,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 08:42:40,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 08:42:40,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 08:42:40,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 08:42:40,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 08:42:40,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 08:42:40,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 08:42:40,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 08:42:40,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 08:42:40,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 08:42:40,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 08:42:40,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 08:42:40,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 08:42:40,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:42:40,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:42:40,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:42:40,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:42:40,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:42:40,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:42:40,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:42:40,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:42:40,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:42:40,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:42:40,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:42:40,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:42:40,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:42:40,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:42:40,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:42:40,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:42:40,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:42:40,421 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:42:40,421 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:42:40,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:42:40,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:42:40,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:42:40,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:42:40,629 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:42:40,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-04-06 08:42:40,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342f90590/efddd0cf4024441583a0820d84339ffd/FLAGa57db3a7a [2022-04-06 08:42:41,090 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:42:41,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-04-06 08:42:41,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342f90590/efddd0cf4024441583a0820d84339ffd/FLAGa57db3a7a [2022-04-06 08:42:41,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342f90590/efddd0cf4024441583a0820d84339ffd [2022-04-06 08:42:41,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:42:41,416 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:42:41,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:42:41,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:42:41,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:42:41,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42647223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41, skipping insertion in model container [2022-04-06 08:42:41,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:42:41,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:42:41,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c[74416,74429] [2022-04-06 08:42:41,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:42:41,799 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:42:41,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c[74416,74429] [2022-04-06 08:42:41,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:42:41,870 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:42:41,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41 WrapperNode [2022-04-06 08:42:41,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:42:41,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:42:41,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:42:41,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:42:41,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:42:41,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:42:41,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:42:41,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:42:41,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (1/1) ... [2022-04-06 08:42:41,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:42:41,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:42:41,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 08:42:42,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 08:42:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:42:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:42:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:42:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 08:42:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 08:42:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:42:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 08:42:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 08:42:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 08:42:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 08:42:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:42:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:42:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:42:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:42:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 08:42:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 08:42:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:42:42,216 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:42:42,217 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:42:42,917 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:42:43,210 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 08:42:43,210 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 08:42:43,219 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:42:43,226 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:42:43,226 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:42:43,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:42:43 BoogieIcfgContainer [2022-04-06 08:42:43,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:42:43,229 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:42:43,229 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:42:43,229 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:42:43,231 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:42:43" (1/1) ... [2022-04-06 08:42:43,233 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:42:43,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:42:43 BasicIcfg [2022-04-06 08:42:43,268 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:42:43,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:42:43,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:42:43,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:42:43,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:42:41" (1/4) ... [2022-04-06 08:42:43,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc6e84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:42:43, skipping insertion in model container [2022-04-06 08:42:43,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:41" (2/4) ... [2022-04-06 08:42:43,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc6e84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:42:43, skipping insertion in model container [2022-04-06 08:42:43,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:42:43" (3/4) ... [2022-04-06 08:42:43,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc6e84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:42:43, skipping insertion in model container [2022-04-06 08:42:43,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:42:43" (4/4) ... [2022-04-06 08:42:43,275 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-2.cJordan [2022-04-06 08:42:43,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:42:43,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:42:43,316 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:42:43,322 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 08:42:43,323 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:42:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 08:42:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-06 08:42:43,353 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:43,354 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:43,354 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:43,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:43,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1558892099, now seen corresponding path program 1 times [2022-04-06 08:42:43,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:43,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592856602] [2022-04-06 08:42:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:43,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:43,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:43,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592856602] [2022-04-06 08:42:43,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592856602] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:43,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:43,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:43,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744854381] [2022-04-06 08:42:43,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:43,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:43,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:43,901 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:46,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:47,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:47,329 INFO L93 Difference]: Finished difference Result 286 states and 475 transitions. [2022-04-06 08:42:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:47,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-04-06 08:42:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:47,342 INFO L225 Difference]: With dead ends: 286 [2022-04-06 08:42:47,342 INFO L226 Difference]: Without dead ends: 260 [2022-04-06 08:42:47,343 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:42:47,347 INFO L913 BasicCegarLoop]: 158 mSDtfsCounter, 152 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:47,348 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 463 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:42:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-04-06 08:42:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 182. [2022-04-06 08:42:47,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.6045197740112995) internal successors, (284), 177 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) [2022-04-06 08:42:47,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-04-06 08:42:47,377 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 49 [2022-04-06 08:42:47,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:47,377 INFO L478 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-04-06 08:42:47,377 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:47,377 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-04-06 08:42:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-06 08:42:47,379 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:47,379 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:47,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:42:47,379 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1110443281, now seen corresponding path program 1 times [2022-04-06 08:42:47,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:47,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057513526] [2022-04-06 08:42:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:47,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:47,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057513526] [2022-04-06 08:42:47,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057513526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:47,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:47,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:47,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674298952] [2022-04-06 08:42:47,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:47,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:47,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:47,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:47,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:47,543 INFO L87 Difference]: Start difference. First operand 182 states and 288 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:50,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:52,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:53,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:53,260 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-04-06 08:42:53,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:53,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-06 08:42:53,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:53,262 INFO L225 Difference]: With dead ends: 210 [2022-04-06 08:42:53,262 INFO L226 Difference]: Without dead ends: 210 [2022-04-06 08:42:53,262 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:42:53,263 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:53,263 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:42:53,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-04-06 08:42:53,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-04-06 08:42:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 188 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-04-06 08:42:53,271 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 50 [2022-04-06 08:42:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:53,271 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-04-06 08:42:53,272 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-04-06 08:42:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 08:42:53,273 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:53,273 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:53,273 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:42:53,273 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:53,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1078266722, now seen corresponding path program 1 times [2022-04-06 08:42:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:53,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323925743] [2022-04-06 08:42:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:53,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:53,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:53,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:53,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323925743] [2022-04-06 08:42:53,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323925743] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:53,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:53,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:53,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795544312] [2022-04-06 08:42:53,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:53,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:53,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:53,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:53,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:53,389 INFO L87 Difference]: Start difference. First operand 193 states and 307 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:57,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:57,350 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-04-06 08:42:57,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:57,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 08:42:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:57,351 INFO L225 Difference]: With dead ends: 210 [2022-04-06 08:42:57,352 INFO L226 Difference]: Without dead ends: 210 [2022-04-06 08:42:57,352 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:42:57,353 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:57,353 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:42:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-04-06 08:42:57,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-04-06 08:42:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6063829787234043) internal successors, (302), 188 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-04-06 08:42:57,363 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 63 [2022-04-06 08:42:57,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:57,364 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-04-06 08:42:57,364 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-04-06 08:42:57,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 08:42:57,365 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:57,365 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:57,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:42:57,366 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:57,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:57,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1195451989, now seen corresponding path program 1 times [2022-04-06 08:42:57,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:57,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030599343] [2022-04-06 08:42:57,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:57,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:57,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:57,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:57,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030599343] [2022-04-06 08:42:57,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030599343] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:57,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:57,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:57,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499535321] [2022-04-06 08:42:57,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:57,516 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:57,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:57,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:57,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:57,517 INFO L87 Difference]: Start difference. First operand 193 states and 306 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:00,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:02,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:02,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:02,925 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2022-04-06 08:43:02,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:02,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 08:43:02,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:02,926 INFO L225 Difference]: With dead ends: 209 [2022-04-06 08:43:02,926 INFO L226 Difference]: Without dead ends: 209 [2022-04-06 08:43:02,926 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:02,927 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:02,927 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:43:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-04-06 08:43:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 193. [2022-04-06 08:43:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.601063829787234) internal successors, (301), 188 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:02,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-04-06 08:43:02,933 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 64 [2022-04-06 08:43:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:02,933 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-04-06 08:43:02,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-04-06 08:43:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 08:43:02,934 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:02,935 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:02,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:43:02,935 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:02,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1745068491, now seen corresponding path program 1 times [2022-04-06 08:43:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:02,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000662771] [2022-04-06 08:43:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:02,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:03,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:03,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:03,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000662771] [2022-04-06 08:43:03,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000662771] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:03,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:03,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:03,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606993834] [2022-04-06 08:43:03,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:03,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:03,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:03,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:03,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:03,023 INFO L87 Difference]: Start difference. First operand 193 states and 305 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:04,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:06,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:08,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:08,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:08,805 INFO L93 Difference]: Finished difference Result 310 states and 484 transitions. [2022-04-06 08:43:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:08,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 08:43:08,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:08,807 INFO L225 Difference]: With dead ends: 310 [2022-04-06 08:43:08,807 INFO L226 Difference]: Without dead ends: 310 [2022-04-06 08:43:08,807 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:08,808 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 147 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:08,808 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:43:08,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-04-06 08:43:08,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 205. [2022-04-06 08:43:08,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.585) internal successors, (317), 200 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 321 transitions. [2022-04-06 08:43:08,814 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 321 transitions. Word has length 64 [2022-04-06 08:43:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:08,814 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 321 transitions. [2022-04-06 08:43:08,815 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 321 transitions. [2022-04-06 08:43:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 08:43:08,816 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:08,816 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:08,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:43:08,817 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:08,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:08,817 INFO L85 PathProgramCache]: Analyzing trace with hash 687906315, now seen corresponding path program 1 times [2022-04-06 08:43:08,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:08,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915381058] [2022-04-06 08:43:08,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:08,935 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:08,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:08,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915381058] [2022-04-06 08:43:08,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915381058] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:08,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:08,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:08,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232246111] [2022-04-06 08:43:08,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:08,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:08,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:08,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:08,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:08,939 INFO L87 Difference]: Start difference. First operand 205 states and 321 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:10,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:11,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:14,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:14,020 INFO L93 Difference]: Finished difference Result 219 states and 338 transitions. [2022-04-06 08:43:14,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:14,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 08:43:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:14,022 INFO L225 Difference]: With dead ends: 219 [2022-04-06 08:43:14,022 INFO L226 Difference]: Without dead ends: 219 [2022-04-06 08:43:14,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:14,022 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:14,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 08:43:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-04-06 08:43:14,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 205. [2022-04-06 08:43:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.58) internal successors, (316), 200 states have internal predecessors, (316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 320 transitions. [2022-04-06 08:43:14,027 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 320 transitions. Word has length 64 [2022-04-06 08:43:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:14,027 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 320 transitions. [2022-04-06 08:43:14,027 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 320 transitions. [2022-04-06 08:43:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 08:43:14,028 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:14,028 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:14,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:43:14,028 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:14,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash -621355733, now seen corresponding path program 1 times [2022-04-06 08:43:14,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:14,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397125232] [2022-04-06 08:43:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:14,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:14,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397125232] [2022-04-06 08:43:14,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397125232] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:14,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:14,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:14,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936793012] [2022-04-06 08:43:14,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:14,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:14,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:14,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:14,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:14,149 INFO L87 Difference]: Start difference. First operand 205 states and 320 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:16,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:18,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:18,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:18,807 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-04-06 08:43:18,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:18,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 08:43:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:18,809 INFO L225 Difference]: With dead ends: 309 [2022-04-06 08:43:18,809 INFO L226 Difference]: Without dead ends: 309 [2022-04-06 08:43:18,809 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:18,810 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 140 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:18,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 08:43:18,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-06 08:43:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-04-06 08:43:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5776699029126213) internal successors, (325), 206 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 329 transitions. [2022-04-06 08:43:18,814 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 329 transitions. Word has length 64 [2022-04-06 08:43:18,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:18,815 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 329 transitions. [2022-04-06 08:43:18,815 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 329 transitions. [2022-04-06 08:43:18,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:43:18,820 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:18,820 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:18,820 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:43:18,820 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:18,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1526798082, now seen corresponding path program 1 times [2022-04-06 08:43:18,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:18,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842348390] [2022-04-06 08:43:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:18,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:18,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:18,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:18,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842348390] [2022-04-06 08:43:18,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842348390] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:18,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:18,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:18,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369587341] [2022-04-06 08:43:18,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:18,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:18,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:18,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:18,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:18,926 INFO L87 Difference]: Start difference. First operand 211 states and 329 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:21,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:23,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:24,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:24,134 INFO L93 Difference]: Finished difference Result 224 states and 345 transitions. [2022-04-06 08:43:24,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:24,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:43:24,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:24,136 INFO L225 Difference]: With dead ends: 224 [2022-04-06 08:43:24,136 INFO L226 Difference]: Without dead ends: 224 [2022-04-06 08:43:24,136 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:24,137 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:24,137 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 08:43:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-04-06 08:43:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 211. [2022-04-06 08:43:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5728155339805825) internal successors, (324), 206 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 328 transitions. [2022-04-06 08:43:24,141 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 328 transitions. Word has length 65 [2022-04-06 08:43:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:24,141 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 328 transitions. [2022-04-06 08:43:24,142 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 328 transitions. [2022-04-06 08:43:24,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 08:43:24,142 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:24,142 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:24,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:43:24,142 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1650794065, now seen corresponding path program 1 times [2022-04-06 08:43:24,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:24,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944883148] [2022-04-06 08:43:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:24,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:24,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:24,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:24,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944883148] [2022-04-06 08:43:24,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944883148] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:24,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:24,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:24,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697522392] [2022-04-06 08:43:24,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:24,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:24,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:24,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:24,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:24,226 INFO L87 Difference]: Start difference. First operand 211 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:26,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:27,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:29,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:30,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:30,022 INFO L93 Difference]: Finished difference Result 309 states and 475 transitions. [2022-04-06 08:43:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:30,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-06 08:43:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:30,024 INFO L225 Difference]: With dead ends: 309 [2022-04-06 08:43:30,024 INFO L226 Difference]: Without dead ends: 309 [2022-04-06 08:43:30,024 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:30,024 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 143 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:30,025 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:43:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-06 08:43:30,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-04-06 08:43:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.558252427184466) internal successors, (321), 206 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 325 transitions. [2022-04-06 08:43:30,029 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 325 transitions. Word has length 66 [2022-04-06 08:43:30,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:30,029 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 325 transitions. [2022-04-06 08:43:30,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:30,030 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 325 transitions. [2022-04-06 08:43:30,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 08:43:30,030 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:30,030 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:30,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:43:30,030 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:30,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:30,031 INFO L85 PathProgramCache]: Analyzing trace with hash 245948261, now seen corresponding path program 1 times [2022-04-06 08:43:30,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:30,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216126743] [2022-04-06 08:43:30,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:30,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:30,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:30,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216126743] [2022-04-06 08:43:30,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216126743] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:30,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:30,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:30,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162479839] [2022-04-06 08:43:30,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:30,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:30,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:30,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:30,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:30,135 INFO L87 Difference]: Start difference. First operand 211 states and 325 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:33,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:33,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:33,619 INFO L93 Difference]: Finished difference Result 309 states and 472 transitions. [2022-04-06 08:43:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:33,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-06 08:43:33,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:33,621 INFO L225 Difference]: With dead ends: 309 [2022-04-06 08:43:33,621 INFO L226 Difference]: Without dead ends: 309 [2022-04-06 08:43:33,621 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:33,622 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:33,622 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-06 08:43:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-06 08:43:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-04-06 08:43:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5436893203883495) internal successors, (318), 206 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:33,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 322 transitions. [2022-04-06 08:43:33,626 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 322 transitions. Word has length 67 [2022-04-06 08:43:33,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:33,626 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 322 transitions. [2022-04-06 08:43:33,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:33,626 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 322 transitions. [2022-04-06 08:43:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 08:43:33,627 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:33,627 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:33,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:43:33,627 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:33,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:33,628 INFO L85 PathProgramCache]: Analyzing trace with hash -96502252, now seen corresponding path program 1 times [2022-04-06 08:43:33,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:33,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981196772] [2022-04-06 08:43:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:33,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:33,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:33,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:33,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981196772] [2022-04-06 08:43:33,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981196772] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:33,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:33,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617640363] [2022-04-06 08:43:33,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:33,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:33,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:33,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:33,711 INFO L87 Difference]: Start difference. First operand 211 states and 322 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:36,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:38,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:40,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:40,697 INFO L93 Difference]: Finished difference Result 253 states and 382 transitions. [2022-04-06 08:43:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-06 08:43:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:40,699 INFO L225 Difference]: With dead ends: 253 [2022-04-06 08:43:40,699 INFO L226 Difference]: Without dead ends: 253 [2022-04-06 08:43:40,699 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:40,699 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 30 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:40,700 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-04-06 08:43:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-04-06 08:43:40,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 233. [2022-04-06 08:43:40,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.543859649122807) internal successors, (352), 228 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 356 transitions. [2022-04-06 08:43:40,703 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 356 transitions. Word has length 67 [2022-04-06 08:43:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:40,703 INFO L478 AbstractCegarLoop]: Abstraction has 233 states and 356 transitions. [2022-04-06 08:43:40,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 356 transitions. [2022-04-06 08:43:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-04-06 08:43:40,704 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:40,704 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:40,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:43:40,705 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:40,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:40,705 INFO L85 PathProgramCache]: Analyzing trace with hash -763654337, now seen corresponding path program 1 times [2022-04-06 08:43:40,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:40,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517178688] [2022-04-06 08:43:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:40,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:40,789 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:40,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:40,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517178688] [2022-04-06 08:43:40,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517178688] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:40,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:40,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:40,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591520307] [2022-04-06 08:43:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:40,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:40,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:40,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:40,791 INFO L87 Difference]: Start difference. First operand 233 states and 356 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) [2022-04-06 08:43:43,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:44,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:44,187 INFO L93 Difference]: Finished difference Result 370 states and 571 transitions. [2022-04-06 08:43:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:44,187 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 80 [2022-04-06 08:43:44,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:44,189 INFO L225 Difference]: With dead ends: 370 [2022-04-06 08:43:44,189 INFO L226 Difference]: Without dead ends: 370 [2022-04-06 08:43:44,189 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:44,189 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 140 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:44,189 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 578 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:43:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-04-06 08:43:44,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 249. [2022-04-06 08:43:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.528688524590164) internal successors, (373), 244 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2022-04-06 08:43:44,194 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 80 [2022-04-06 08:43:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:44,194 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2022-04-06 08:43:44,194 INFO L479 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) [2022-04-06 08:43:44,194 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2022-04-06 08:43:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-06 08:43:44,195 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:44,195 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:44,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:43:44,195 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:44,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:44,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1834537326, now seen corresponding path program 1 times [2022-04-06 08:43:44,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:44,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296213087] [2022-04-06 08:43:44,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:44,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:43:44,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:44,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296213087] [2022-04-06 08:43:44,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296213087] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:44,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:44,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:44,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860027453] [2022-04-06 08:43:44,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:44,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:44,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:44,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:44,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:44,296 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:45,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:46,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:48,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:50,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:51,055 INFO L93 Difference]: Finished difference Result 262 states and 392 transitions. [2022-04-06 08:43:51,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:51,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-04-06 08:43:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:51,057 INFO L225 Difference]: With dead ends: 262 [2022-04-06 08:43:51,057 INFO L226 Difference]: Without dead ends: 262 [2022-04-06 08:43:51,057 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:51,057 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 19 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:51,057 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 572 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 08:43:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-04-06 08:43:51,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 249. [2022-04-06 08:43:51,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.5245901639344261) internal successors, (372), 244 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 376 transitions. [2022-04-06 08:43:51,062 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 376 transitions. Word has length 81 [2022-04-06 08:43:51,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:51,062 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 376 transitions. [2022-04-06 08:43:51,062 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 376 transitions. [2022-04-06 08:43:51,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-06 08:43:51,063 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:51,063 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:51,063 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:43:51,063 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:51,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:51,064 INFO L85 PathProgramCache]: Analyzing trace with hash -577071666, now seen corresponding path program 1 times [2022-04-06 08:43:51,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:51,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880106386] [2022-04-06 08:43:51,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:51,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:51,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:51,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880106386] [2022-04-06 08:43:51,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880106386] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:51,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:51,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:51,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083001721] [2022-04-06 08:43:51,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:51,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:51,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:51,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:51,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:51,177 INFO L87 Difference]: Start difference. First operand 249 states and 376 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) [2022-04-06 08:43:52,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:54,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:56,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:58,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:58,798 INFO L93 Difference]: Finished difference Result 347 states and 523 transitions. [2022-04-06 08:43:58,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:58,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-04-06 08:43:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:58,800 INFO L225 Difference]: With dead ends: 347 [2022-04-06 08:43:58,800 INFO L226 Difference]: Without dead ends: 347 [2022-04-06 08:43:58,800 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:58,800 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:58,800 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-04-06 08:43:58,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-04-06 08:43:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 249. [2022-04-06 08:43:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.5122950819672132) internal successors, (369), 244 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 373 transitions. [2022-04-06 08:43:58,805 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 373 transitions. Word has length 81 [2022-04-06 08:43:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:58,805 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 373 transitions. [2022-04-06 08:43:58,805 INFO L479 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) [2022-04-06 08:43:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 373 transitions. [2022-04-06 08:43:58,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-06 08:43:58,806 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:58,806 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:58,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:43:58,806 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:58,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:58,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1618514662, now seen corresponding path program 1 times [2022-04-06 08:43:58,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:58,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220947635] [2022-04-06 08:43:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:58,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:58,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-06 08:43:58,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:58,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220947635] [2022-04-06 08:43:58,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220947635] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:58,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:58,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 08:43:58,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049694074] [2022-04-06 08:43:58,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:58,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 08:43:58,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 08:43:58,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:58,922 INFO L87 Difference]: Start difference. First operand 249 states and 373 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:02,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:03,428 INFO L93 Difference]: Finished difference Result 258 states and 384 transitions. [2022-04-06 08:44:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 08:44:03,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 82 [2022-04-06 08:44:03,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:03,429 INFO L225 Difference]: With dead ends: 258 [2022-04-06 08:44:03,429 INFO L226 Difference]: Without dead ends: 258 [2022-04-06 08:44:03,430 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:44:03,430 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:03,430 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-06 08:44:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-04-06 08:44:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-04-06 08:44:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5019762845849802) internal successors, (380), 253 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:03,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 384 transitions. [2022-04-06 08:44:03,443 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 384 transitions. Word has length 82 [2022-04-06 08:44:03,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:03,443 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 384 transitions. [2022-04-06 08:44:03,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:03,443 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 384 transitions. [2022-04-06 08:44:03,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 08:44:03,444 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:03,444 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:03,444 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:44:03,444 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1558375689, now seen corresponding path program 1 times [2022-04-06 08:44:03,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:03,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101171387] [2022-04-06 08:44:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:03,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:44:03,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:03,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101171387] [2022-04-06 08:44:03,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101171387] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:03,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:03,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:03,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043585688] [2022-04-06 08:44:03,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:03,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:03,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:03,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:03,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:03,537 INFO L87 Difference]: Start difference. First operand 258 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:06,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:08,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:09,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:09,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:09,875 INFO L93 Difference]: Finished difference Result 355 states and 528 transitions. [2022-04-06 08:44:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:09,875 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 [2022-04-06 08:44:09,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:09,876 INFO L225 Difference]: With dead ends: 355 [2022-04-06 08:44:09,876 INFO L226 Difference]: Without dead ends: 355 [2022-04-06 08:44:09,876 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:09,877 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 141 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:09,877 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 348 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 08:44:09,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-04-06 08:44:09,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 258. [2022-04-06 08:44:09,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4861660079051384) internal successors, (376), 253 states have internal predecessors, (376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:09,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 380 transitions. [2022-04-06 08:44:09,881 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 380 transitions. Word has length 83 [2022-04-06 08:44:09,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:09,881 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 380 transitions. [2022-04-06 08:44:09,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:09,881 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 380 transitions. [2022-04-06 08:44:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-06 08:44:09,882 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:09,882 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:09,882 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:44:09,882 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:09,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:09,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1133478069, now seen corresponding path program 1 times [2022-04-06 08:44:09,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:09,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4659840] [2022-04-06 08:44:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:09,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:10,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:10,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4659840] [2022-04-06 08:44:10,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4659840] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:10,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:10,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:10,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855911770] [2022-04-06 08:44:10,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:10,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:10,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:10,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:10,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:10,014 INFO L87 Difference]: Start difference. First operand 258 states and 380 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:12,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:14,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:16,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:16,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:16,885 INFO L93 Difference]: Finished difference Result 354 states and 522 transitions. [2022-04-06 08:44:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-04-06 08:44:16,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:16,886 INFO L225 Difference]: With dead ends: 354 [2022-04-06 08:44:16,886 INFO L226 Difference]: Without dead ends: 354 [2022-04-06 08:44:16,887 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:16,887 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 78 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:16,887 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 495 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 523 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 08:44:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-04-06 08:44:16,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 300. [2022-04-06 08:44:16,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.505084745762712) internal successors, (444), 295 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 448 transitions. [2022-04-06 08:44:16,891 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 448 transitions. Word has length 89 [2022-04-06 08:44:16,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:16,891 INFO L478 AbstractCegarLoop]: Abstraction has 300 states and 448 transitions. [2022-04-06 08:44:16,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 448 transitions. [2022-04-06 08:44:16,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-06 08:44:16,892 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:16,892 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:16,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:44:16,892 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:16,893 INFO L85 PathProgramCache]: Analyzing trace with hash -802182218, now seen corresponding path program 1 times [2022-04-06 08:44:16,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:16,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656743623] [2022-04-06 08:44:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:16,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:17,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656743623] [2022-04-06 08:44:17,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656743623] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:17,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:17,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602359704] [2022-04-06 08:44:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:17,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:17,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:17,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:17,013 INFO L87 Difference]: Start difference. First operand 300 states and 448 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:18,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:20,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:22,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:23,587 INFO L93 Difference]: Finished difference Result 397 states and 595 transitions. [2022-04-06 08:44:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-04-06 08:44:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:23,589 INFO L225 Difference]: With dead ends: 397 [2022-04-06 08:44:23,589 INFO L226 Difference]: Without dead ends: 397 [2022-04-06 08:44:23,589 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:23,590 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 113 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:23,590 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 366 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 08:44:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-04-06 08:44:23,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 280. [2022-04-06 08:44:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5236363636363637) internal successors, (419), 275 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 423 transitions. [2022-04-06 08:44:23,595 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 423 transitions. Word has length 89 [2022-04-06 08:44:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:23,596 INFO L478 AbstractCegarLoop]: Abstraction has 280 states and 423 transitions. [2022-04-06 08:44:23,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:23,596 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 423 transitions. [2022-04-06 08:44:23,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-06 08:44:23,597 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:23,597 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:23,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 08:44:23,597 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:23,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash -442897010, now seen corresponding path program 1 times [2022-04-06 08:44:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:23,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646409336] [2022-04-06 08:44:23,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:23,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:23,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646409336] [2022-04-06 08:44:23,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646409336] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:23,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:23,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:23,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779271998] [2022-04-06 08:44:23,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:23,752 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:23,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:23,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:23,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:23,753 INFO L87 Difference]: Start difference. First operand 280 states and 423 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:28,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:28,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:28,463 INFO L93 Difference]: Finished difference Result 373 states and 560 transitions. [2022-04-06 08:44:28,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:28,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-06 08:44:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:28,465 INFO L225 Difference]: With dead ends: 373 [2022-04-06 08:44:28,465 INFO L226 Difference]: Without dead ends: 373 [2022-04-06 08:44:28,465 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:28,466 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 84 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:28,466 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 501 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:44:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-04-06 08:44:28,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 314. [2022-04-06 08:44:28,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5275080906148868) internal successors, (472), 309 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:28,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 476 transitions. [2022-04-06 08:44:28,470 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 476 transitions. Word has length 117 [2022-04-06 08:44:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:28,470 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 476 transitions. [2022-04-06 08:44:28,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 476 transitions. [2022-04-06 08:44:28,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-06 08:44:28,471 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:28,471 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:28,472 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 08:44:28,472 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:28,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:28,472 INFO L85 PathProgramCache]: Analyzing trace with hash -689210097, now seen corresponding path program 1 times [2022-04-06 08:44:28,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:28,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884642447] [2022-04-06 08:44:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 08:44:28,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:28,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884642447] [2022-04-06 08:44:28,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884642447] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:28,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:28,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:28,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903221093] [2022-04-06 08:44:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:28,605 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:28,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:28,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:28,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:28,606 INFO L87 Difference]: Start difference. First operand 314 states and 476 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:30,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:31,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:31,992 INFO L93 Difference]: Finished difference Result 359 states and 538 transitions. [2022-04-06 08:44:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:31,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-06 08:44:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:31,993 INFO L225 Difference]: With dead ends: 359 [2022-04-06 08:44:31,993 INFO L226 Difference]: Without dead ends: 359 [2022-04-06 08:44:31,994 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:31,994 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 32 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:31,994 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 595 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:44:31,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-04-06 08:44:31,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 338. [2022-04-06 08:44:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5225225225225225) internal successors, (507), 333 states have internal predecessors, (507), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 511 transitions. [2022-04-06 08:44:31,998 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 511 transitions. Word has length 117 [2022-04-06 08:44:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:31,998 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 511 transitions. [2022-04-06 08:44:31,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 511 transitions. [2022-04-06 08:44:31,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 08:44:31,999 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:32,000 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:32,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 08:44:32,000 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:32,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:32,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1156244222, now seen corresponding path program 1 times [2022-04-06 08:44:32,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:32,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721114512] [2022-04-06 08:44:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:32,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:32,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-06 08:44:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:32,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721114512] [2022-04-06 08:44:32,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721114512] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:32,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:32,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:32,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804537219] [2022-04-06 08:44:32,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:32,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:32,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:32,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:32,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:32,093 INFO L87 Difference]: Start difference. First operand 338 states and 511 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:34,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:34,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:34,417 INFO L93 Difference]: Finished difference Result 345 states and 520 transitions. [2022-04-06 08:44:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:34,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 08:44:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:34,418 INFO L225 Difference]: With dead ends: 345 [2022-04-06 08:44:34,418 INFO L226 Difference]: Without dead ends: 345 [2022-04-06 08:44:34,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:34,419 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 30 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:34,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 525 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:44:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-04-06 08:44:34,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 338. [2022-04-06 08:44:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5195195195195195) internal successors, (506), 333 states have internal predecessors, (506), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:34,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 510 transitions. [2022-04-06 08:44:34,423 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 510 transitions. Word has length 122 [2022-04-06 08:44:34,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:34,423 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 510 transitions. [2022-04-06 08:44:34,423 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:34,423 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 510 transitions. [2022-04-06 08:44:34,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 08:44:34,424 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:34,424 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:34,424 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 08:44:34,424 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:34,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:34,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1770598714, now seen corresponding path program 1 times [2022-04-06 08:44:34,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:34,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242710280] [2022-04-06 08:44:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:34,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:34,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:34,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242710280] [2022-04-06 08:44:34,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242710280] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:34,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:34,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611959226] [2022-04-06 08:44:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:34,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:34,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:34,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:34,540 INFO L87 Difference]: Start difference. First operand 338 states and 510 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:35,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:37,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:38,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:40,360 INFO L93 Difference]: Finished difference Result 453 states and 678 transitions. [2022-04-06 08:44:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:40,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 08:44:40,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:40,362 INFO L225 Difference]: With dead ends: 453 [2022-04-06 08:44:40,362 INFO L226 Difference]: Without dead ends: 453 [2022-04-06 08:44:40,362 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:40,362 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:40,362 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:44:40,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-04-06 08:44:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 375. [2022-04-06 08:44:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.5297297297297296) internal successors, (566), 370 states have internal predecessors, (566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 570 transitions. [2022-04-06 08:44:40,367 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 570 transitions. Word has length 122 [2022-04-06 08:44:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:40,367 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 570 transitions. [2022-04-06 08:44:40,367 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 570 transitions. [2022-04-06 08:44:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 08:44:40,368 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:40,368 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:40,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 08:44:40,368 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:40,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:40,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1281634973, now seen corresponding path program 1 times [2022-04-06 08:44:40,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:40,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831801733] [2022-04-06 08:44:40,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:40,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:40,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:40,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831801733] [2022-04-06 08:44:40,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831801733] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:40,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:40,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066648900] [2022-04-06 08:44:40,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:40,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:40,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:40,456 INFO L87 Difference]: Start difference. First operand 375 states and 570 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:42,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:43,829 INFO L93 Difference]: Finished difference Result 432 states and 650 transitions. [2022-04-06 08:44:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:43,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 08:44:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:43,831 INFO L225 Difference]: With dead ends: 432 [2022-04-06 08:44:43,831 INFO L226 Difference]: Without dead ends: 432 [2022-04-06 08:44:43,831 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:43,831 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 75 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:43,831 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 477 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:44:43,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-04-06 08:44:43,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 381. [2022-04-06 08:44:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 376 states have (on average 1.5319148936170213) internal successors, (576), 376 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 580 transitions. [2022-04-06 08:44:43,836 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 580 transitions. Word has length 123 [2022-04-06 08:44:43,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:43,836 INFO L478 AbstractCegarLoop]: Abstraction has 381 states and 580 transitions. [2022-04-06 08:44:43,836 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 580 transitions. [2022-04-06 08:44:43,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 08:44:43,837 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:43,837 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:43,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 08:44:43,837 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:43,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:43,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1587884536, now seen corresponding path program 1 times [2022-04-06 08:44:43,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:43,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272079748] [2022-04-06 08:44:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:43,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:43,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:43,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:43,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272079748] [2022-04-06 08:44:43,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272079748] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:43,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:43,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:43,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045851542] [2022-04-06 08:44:43,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:43,927 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:43,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:43,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:43,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:43,928 INFO L87 Difference]: Start difference. First operand 381 states and 580 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:46,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:48,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:50,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:50,678 INFO L93 Difference]: Finished difference Result 424 states and 636 transitions. [2022-04-06 08:44:50,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:50,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 08:44:50,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:50,680 INFO L225 Difference]: With dead ends: 424 [2022-04-06 08:44:50,680 INFO L226 Difference]: Without dead ends: 424 [2022-04-06 08:44:50,680 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:50,680 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 59 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:50,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 483 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 08:44:50,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-04-06 08:44:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 384. [2022-04-06 08:44:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5277044854881265) internal successors, (579), 379 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 583 transitions. [2022-04-06 08:44:50,685 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 583 transitions. Word has length 131 [2022-04-06 08:44:50,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:50,685 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 583 transitions. [2022-04-06 08:44:50,685 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 583 transitions. [2022-04-06 08:44:50,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 08:44:50,686 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:50,686 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:50,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 08:44:50,686 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:50,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:50,687 INFO L85 PathProgramCache]: Analyzing trace with hash 361584944, now seen corresponding path program 1 times [2022-04-06 08:44:50,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:50,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058203254] [2022-04-06 08:44:50,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:50,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:44:50,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:50,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058203254] [2022-04-06 08:44:50,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058203254] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:50,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:50,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:50,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801739646] [2022-04-06 08:44:50,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:50,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:50,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:50,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:50,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:50,791 INFO L87 Difference]: Start difference. First operand 384 states and 583 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:51,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:53,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:56,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:56,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:56,416 INFO L93 Difference]: Finished difference Result 424 states and 635 transitions. [2022-04-06 08:44:56,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:56,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-06 08:44:56,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:56,418 INFO L225 Difference]: With dead ends: 424 [2022-04-06 08:44:56,418 INFO L226 Difference]: Without dead ends: 424 [2022-04-06 08:44:56,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:44:56,419 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 75 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:56,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 495 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:44:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-04-06 08:44:56,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 384. [2022-04-06 08:44:56,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.525065963060686) internal successors, (578), 379 states have internal predecessors, (578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 582 transitions. [2022-04-06 08:44:56,423 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 582 transitions. Word has length 139 [2022-04-06 08:44:56,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:56,423 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 582 transitions. [2022-04-06 08:44:56,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 582 transitions. [2022-04-06 08:44:56,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 08:44:56,424 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:56,424 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:56,424 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 08:44:56,425 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:56,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash -608706063, now seen corresponding path program 1 times [2022-04-06 08:44:56,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:56,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666936045] [2022-04-06 08:44:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:56,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:44:56,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:56,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666936045] [2022-04-06 08:44:56,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666936045] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:56,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:56,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889447282] [2022-04-06 08:44:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:56,516 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:56,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:56,516 INFO L87 Difference]: Start difference. First operand 384 states and 582 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:59,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:00,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:02,072 INFO L93 Difference]: Finished difference Result 535 states and 809 transitions. [2022-04-06 08:45:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-06 08:45:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:02,074 INFO L225 Difference]: With dead ends: 535 [2022-04-06 08:45:02,074 INFO L226 Difference]: Without dead ends: 535 [2022-04-06 08:45:02,074 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:02,074 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 119 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:02,074 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 378 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 08:45:02,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-04-06 08:45:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 448. [2022-04-06 08:45:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.5327313769751694) internal successors, (679), 443 states have internal predecessors, (679), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 683 transitions. [2022-04-06 08:45:02,080 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 683 transitions. Word has length 139 [2022-04-06 08:45:02,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:02,080 INFO L478 AbstractCegarLoop]: Abstraction has 448 states and 683 transitions. [2022-04-06 08:45:02,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 683 transitions. [2022-04-06 08:45:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 08:45:02,081 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:02,081 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:02,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 08:45:02,081 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -244662467, now seen corresponding path program 1 times [2022-04-06 08:45:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028544918] [2022-04-06 08:45:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 08:45:02,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:02,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028544918] [2022-04-06 08:45:02,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028544918] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:02,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:02,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:02,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730476912] [2022-04-06 08:45:02,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:02,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:02,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:02,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:02,290 INFO L87 Difference]: Start difference. First operand 448 states and 683 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:04,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:06,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:08,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:08,245 INFO L93 Difference]: Finished difference Result 513 states and 767 transitions. [2022-04-06 08:45:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:08,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 08:45:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:08,247 INFO L225 Difference]: With dead ends: 513 [2022-04-06 08:45:08,247 INFO L226 Difference]: Without dead ends: 513 [2022-04-06 08:45:08,248 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:08,248 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 135 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:08,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 08:45:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-04-06 08:45:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 448. [2022-04-06 08:45:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.5146726862302482) internal successors, (671), 443 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 675 transitions. [2022-04-06 08:45:08,253 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 675 transitions. Word has length 144 [2022-04-06 08:45:08,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:08,253 INFO L478 AbstractCegarLoop]: Abstraction has 448 states and 675 transitions. [2022-04-06 08:45:08,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:08,253 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 675 transitions. [2022-04-06 08:45:08,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 08:45:08,254 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:08,254 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:08,254 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 08:45:08,254 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:08,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:08,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2078608695, now seen corresponding path program 1 times [2022-04-06 08:45:08,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:08,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202480499] [2022-04-06 08:45:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:08,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:45:08,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:08,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202480499] [2022-04-06 08:45:08,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202480499] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:08,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:08,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:08,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782070132] [2022-04-06 08:45:08,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:08,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:08,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:08,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:08,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:08,347 INFO L87 Difference]: Start difference. First operand 448 states and 675 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:10,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:12,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:13,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:14,299 INFO L93 Difference]: Finished difference Result 553 states and 824 transitions. [2022-04-06 08:45:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:14,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 08:45:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:14,301 INFO L225 Difference]: With dead ends: 553 [2022-04-06 08:45:14,301 INFO L226 Difference]: Without dead ends: 553 [2022-04-06 08:45:14,302 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:14,302 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 115 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:14,302 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 386 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 08:45:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-04-06 08:45:14,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 478. [2022-04-06 08:45:14,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5052854122621564) internal successors, (712), 473 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:14,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 716 transitions. [2022-04-06 08:45:14,326 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 716 transitions. Word has length 144 [2022-04-06 08:45:14,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:14,326 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 716 transitions. [2022-04-06 08:45:14,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:14,326 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 716 transitions. [2022-04-06 08:45:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:45:14,327 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:14,327 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:14,327 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 08:45:14,327 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:14,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:14,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1171735351, now seen corresponding path program 1 times [2022-04-06 08:45:14,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:14,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407046674] [2022-04-06 08:45:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:14,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:45:14,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:14,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407046674] [2022-04-06 08:45:14,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407046674] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:14,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:14,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:14,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470055239] [2022-04-06 08:45:14,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:14,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:14,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:14,417 INFO L87 Difference]: Start difference. First operand 478 states and 716 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:15,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:16,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:19,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:19,508 INFO L93 Difference]: Finished difference Result 543 states and 802 transitions. [2022-04-06 08:45:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 08:45:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:19,510 INFO L225 Difference]: With dead ends: 543 [2022-04-06 08:45:19,510 INFO L226 Difference]: Without dead ends: 543 [2022-04-06 08:45:19,510 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:19,511 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 114 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:19,511 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 08:45:19,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-04-06 08:45:19,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-04-06 08:45:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.492600422832981) internal successors, (706), 473 states have internal predecessors, (706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 710 transitions. [2022-04-06 08:45:19,539 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 710 transitions. Word has length 145 [2022-04-06 08:45:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:19,539 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 710 transitions. [2022-04-06 08:45:19,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 710 transitions. [2022-04-06 08:45:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:45:19,540 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:19,541 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:19,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 08:45:19,541 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:19,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:19,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1581519040, now seen corresponding path program 1 times [2022-04-06 08:45:19,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:19,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166884318] [2022-04-06 08:45:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:19,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:45:19,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:19,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166884318] [2022-04-06 08:45:19,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166884318] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:19,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:19,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:19,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940589673] [2022-04-06 08:45:19,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:19,644 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:19,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:19,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:19,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:19,645 INFO L87 Difference]: Start difference. First operand 478 states and 710 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:20,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:22,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:25,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:25,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:25,840 INFO L93 Difference]: Finished difference Result 543 states and 800 transitions. [2022-04-06 08:45:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:25,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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 145 [2022-04-06 08:45:25,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:25,842 INFO L225 Difference]: With dead ends: 543 [2022-04-06 08:45:25,842 INFO L226 Difference]: Without dead ends: 543 [2022-04-06 08:45:25,842 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:25,842 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 106 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:25,843 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 386 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 08:45:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-04-06 08:45:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-04-06 08:45:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4883720930232558) internal successors, (704), 473 states have internal predecessors, (704), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:25,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 708 transitions. [2022-04-06 08:45:25,858 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 708 transitions. Word has length 145 [2022-04-06 08:45:25,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:25,858 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 708 transitions. [2022-04-06 08:45:25,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 708 transitions. [2022-04-06 08:45:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:45:25,859 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:25,859 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:25,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 08:45:25,859 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:25,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash 249107055, now seen corresponding path program 1 times [2022-04-06 08:45:25,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:25,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872189632] [2022-04-06 08:45:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:45:26,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:26,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872189632] [2022-04-06 08:45:26,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872189632] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:26,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:26,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:26,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885931059] [2022-04-06 08:45:26,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:26,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:26,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:26,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:26,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:26,030 INFO L87 Difference]: Start difference. First operand 478 states and 708 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:29,800 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 [] [2022-04-06 08:45:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:30,175 INFO L93 Difference]: Finished difference Result 506 states and 746 transitions. [2022-04-06 08:45:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:30,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:45:30,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:30,177 INFO L225 Difference]: With dead ends: 506 [2022-04-06 08:45:30,177 INFO L226 Difference]: Without dead ends: 506 [2022-04-06 08:45:30,177 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:30,177 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:30,178 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 511 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:45:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-04-06 08:45:30,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 478. [2022-04-06 08:45:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4862579281183932) internal successors, (703), 473 states have internal predecessors, (703), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 707 transitions. [2022-04-06 08:45:30,182 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 707 transitions. Word has length 147 [2022-04-06 08:45:30,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:30,182 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 707 transitions. [2022-04-06 08:45:30,183 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:30,183 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 707 transitions. [2022-04-06 08:45:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 08:45:30,183 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:30,184 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:30,184 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 08:45:30,184 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:30,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1898427519, now seen corresponding path program 1 times [2022-04-06 08:45:30,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:30,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259799492] [2022-04-06 08:45:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:30,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:45:30,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:30,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259799492] [2022-04-06 08:45:30,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259799492] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:30,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:30,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673667464] [2022-04-06 08:45:30,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:30,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:30,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:30,298 INFO L87 Difference]: Start difference. First operand 478 states and 707 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:32,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:35,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:36,153 INFO L93 Difference]: Finished difference Result 543 states and 792 transitions. [2022-04-06 08:45:36,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:36,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 08:45:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:36,155 INFO L225 Difference]: With dead ends: 543 [2022-04-06 08:45:36,155 INFO L226 Difference]: Without dead ends: 543 [2022-04-06 08:45:36,156 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:36,156 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 114 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:36,156 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:45:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-04-06 08:45:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-04-06 08:45:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4714587737843552) internal successors, (696), 473 states have internal predecessors, (696), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:36,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 700 transitions. [2022-04-06 08:45:36,161 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 700 transitions. Word has length 148 [2022-04-06 08:45:36,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:36,161 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 700 transitions. [2022-04-06 08:45:36,161 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 700 transitions. [2022-04-06 08:45:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-06 08:45:36,162 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:36,162 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:36,162 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 08:45:36,162 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:36,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:36,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1088275173, now seen corresponding path program 1 times [2022-04-06 08:45:36,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:36,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894414336] [2022-04-06 08:45:36,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:36,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 08:45:36,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:36,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894414336] [2022-04-06 08:45:36,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894414336] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:36,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:36,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:45:36,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961021487] [2022-04-06 08:45:36,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:36,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:45:36,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:36,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:45:36,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:36,255 INFO L87 Difference]: Start difference. First operand 478 states and 700 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:38,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:39,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:39,919 INFO L93 Difference]: Finished difference Result 922 states and 1351 transitions. [2022-04-06 08:45:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:45:39,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-04-06 08:45:39,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:39,922 INFO L225 Difference]: With dead ends: 922 [2022-04-06 08:45:39,922 INFO L226 Difference]: Without dead ends: 922 [2022-04-06 08:45:39,922 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:39,922 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 131 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:39,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 442 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 286 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:45:39,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-04-06 08:45:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 920. [2022-04-06 08:45:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 915 states have (on average 1.4710382513661202) internal successors, (1346), 915 states have internal predecessors, (1346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1350 transitions. [2022-04-06 08:45:39,932 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1350 transitions. Word has length 153 [2022-04-06 08:45:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:39,932 INFO L478 AbstractCegarLoop]: Abstraction has 920 states and 1350 transitions. [2022-04-06 08:45:39,932 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1350 transitions. [2022-04-06 08:45:39,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-06 08:45:39,934 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:39,934 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:39,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 08:45:39,934 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:39,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:39,934 INFO L85 PathProgramCache]: Analyzing trace with hash -11721764, now seen corresponding path program 1 times [2022-04-06 08:45:39,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:39,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354395330] [2022-04-06 08:45:39,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:39,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-06 08:45:40,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:40,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354395330] [2022-04-06 08:45:40,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354395330] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:40,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:40,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:45:40,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875226243] [2022-04-06 08:45:40,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:40,015 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:45:40,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:40,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:45:40,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:40,016 INFO L87 Difference]: Start difference. First operand 920 states and 1350 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:42,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:44,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:44,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:44,767 INFO L93 Difference]: Finished difference Result 947 states and 1385 transitions. [2022-04-06 08:45:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:45:44,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-04-06 08:45:44,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:44,770 INFO L225 Difference]: With dead ends: 947 [2022-04-06 08:45:44,771 INFO L226 Difference]: Without dead ends: 947 [2022-04-06 08:45:44,771 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:44,771 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:44,772 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:45:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-04-06 08:45:44,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2022-04-06 08:45:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 942 states have (on average 1.4660297239915074) internal successors, (1381), 942 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1385 transitions. [2022-04-06 08:45:44,782 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1385 transitions. Word has length 153 [2022-04-06 08:45:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:44,783 INFO L478 AbstractCegarLoop]: Abstraction has 947 states and 1385 transitions. [2022-04-06 08:45:44,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1385 transitions. [2022-04-06 08:45:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-06 08:45:44,785 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:44,785 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:44,785 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 08:45:44,785 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:44,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1918509085, now seen corresponding path program 1 times [2022-04-06 08:45:44,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:44,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139974855] [2022-04-06 08:45:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:44,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-04-06 08:45:44,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:44,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139974855] [2022-04-06 08:45:44,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139974855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:44,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:44,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:45:44,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322754519] [2022-04-06 08:45:44,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:44,881 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:45:44,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:44,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:45:44,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:44,881 INFO L87 Difference]: Start difference. First operand 947 states and 1385 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:46,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:48,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:50,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:51,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:51,037 INFO L93 Difference]: Finished difference Result 949 states and 1387 transitions. [2022-04-06 08:45:51,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:45:51,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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 153 [2022-04-06 08:45:51,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:51,040 INFO L225 Difference]: With dead ends: 949 [2022-04-06 08:45:51,040 INFO L226 Difference]: Without dead ends: 949 [2022-04-06 08:45:51,040 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:51,041 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:51,041 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 08:45:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-04-06 08:45:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2022-04-06 08:45:51,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.465042372881356) internal successors, (1383), 944 states have internal predecessors, (1383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1387 transitions. [2022-04-06 08:45:51,049 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1387 transitions. Word has length 153 [2022-04-06 08:45:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:51,049 INFO L478 AbstractCegarLoop]: Abstraction has 949 states and 1387 transitions. [2022-04-06 08:45:51,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1387 transitions. [2022-04-06 08:45:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-06 08:45:51,050 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:51,050 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:51,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 08:45:51,051 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:51,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1516319031, now seen corresponding path program 1 times [2022-04-06 08:45:51,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:51,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722348451] [2022-04-06 08:45:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:51,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 08:45:51,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:51,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722348451] [2022-04-06 08:45:51,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722348451] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:51,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:51,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:51,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825005617] [2022-04-06 08:45:51,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:51,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:51,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:51,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:51,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:51,141 INFO L87 Difference]: Start difference. First operand 949 states and 1387 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:53,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:55,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:57,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:58,086 INFO L93 Difference]: Finished difference Result 990 states and 1436 transitions. [2022-04-06 08:45:58,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:58,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-06 08:45:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:58,089 INFO L225 Difference]: With dead ends: 990 [2022-04-06 08:45:58,089 INFO L226 Difference]: Without dead ends: 990 [2022-04-06 08:45:58,089 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:58,089 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 42 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:58,090 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 527 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 08:45:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-04-06 08:45:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 949. [2022-04-06 08:45:58,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.4629237288135593) internal successors, (1381), 944 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1385 transitions. [2022-04-06 08:45:58,098 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1385 transitions. Word has length 154 [2022-04-06 08:45:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:58,098 INFO L478 AbstractCegarLoop]: Abstraction has 949 states and 1385 transitions. [2022-04-06 08:45:58,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1385 transitions. [2022-04-06 08:45:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 08:45:58,099 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:58,099 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:58,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 08:45:58,100 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1851421981, now seen corresponding path program 1 times [2022-04-06 08:45:58,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:58,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960261535] [2022-04-06 08:45:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:58,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 08:45:58,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:58,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960261535] [2022-04-06 08:45:58,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960261535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:58,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:58,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:58,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753870580] [2022-04-06 08:45:58,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:58,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:58,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:58,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:58,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:58,215 INFO L87 Difference]: Start difference. First operand 949 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:01,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:02,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:03,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:04,067 INFO L93 Difference]: Finished difference Result 986 states and 1430 transitions. [2022-04-06 08:46:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:04,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 08:46:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:04,070 INFO L225 Difference]: With dead ends: 986 [2022-04-06 08:46:04,070 INFO L226 Difference]: Without dead ends: 986 [2022-04-06 08:46:04,070 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:04,070 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 39 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:04,070 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 529 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:46:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-04-06 08:46:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 949. [2022-04-06 08:46:04,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.4608050847457628) internal successors, (1379), 944 states have internal predecessors, (1379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1383 transitions. [2022-04-06 08:46:04,079 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1383 transitions. Word has length 155 [2022-04-06 08:46:04,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:04,079 INFO L478 AbstractCegarLoop]: Abstraction has 949 states and 1383 transitions. [2022-04-06 08:46:04,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1383 transitions. [2022-04-06 08:46:04,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 08:46:04,081 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:04,081 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:04,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 08:46:04,081 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:04,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:04,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2103039724, now seen corresponding path program 1 times [2022-04-06 08:46:04,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:04,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308197855] [2022-04-06 08:46:04,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:04,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-04-06 08:46:04,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:04,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308197855] [2022-04-06 08:46:04,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308197855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:04,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:04,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:04,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355506899] [2022-04-06 08:46:04,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:04,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:04,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:04,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:04,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:04,173 INFO L87 Difference]: Start difference. First operand 949 states and 1383 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:06,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:08,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:10,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:12,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:12,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:12,544 INFO L93 Difference]: Finished difference Result 1028 states and 1494 transitions. [2022-04-06 08:46:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:12,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 08:46:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:12,547 INFO L225 Difference]: With dead ends: 1028 [2022-04-06 08:46:12,547 INFO L226 Difference]: Without dead ends: 1028 [2022-04-06 08:46:12,547 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:12,547 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 28 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:12,547 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 587 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-04-06 08:46:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-04-06 08:46:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1001. [2022-04-06 08:46:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4608433734939759) internal successors, (1455), 996 states have internal predecessors, (1455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1459 transitions. [2022-04-06 08:46:12,556 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1459 transitions. Word has length 155 [2022-04-06 08:46:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:12,556 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1459 transitions. [2022-04-06 08:46:12,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:12,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1459 transitions. [2022-04-06 08:46:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-04-06 08:46:12,558 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:12,558 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-04-06 08:46:12,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 08:46:12,558 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:12,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:12,558 INFO L85 PathProgramCache]: Analyzing trace with hash -127001634, now seen corresponding path program 1 times [2022-04-06 08:46:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:12,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000649332] [2022-04-06 08:46:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:12,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:46:12,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:12,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000649332] [2022-04-06 08:46:12,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000649332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:12,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:12,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:12,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261102891] [2022-04-06 08:46:12,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:12,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:12,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:12,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:12,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:12,671 INFO L87 Difference]: Start difference. First operand 1001 states and 1459 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:14,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:16,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:17,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:17,019 INFO L93 Difference]: Finished difference Result 1038 states and 1504 transitions. [2022-04-06 08:46:17,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:17,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-04-06 08:46:17,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:17,021 INFO L225 Difference]: With dead ends: 1038 [2022-04-06 08:46:17,021 INFO L226 Difference]: Without dead ends: 1038 [2022-04-06 08:46:17,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:17,022 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 48 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:17,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 529 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:46:17,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-04-06 08:46:17,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1001. [2022-04-06 08:46:17,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4588353413654618) internal successors, (1453), 996 states have internal predecessors, (1453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1457 transitions. [2022-04-06 08:46:17,036 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1457 transitions. Word has length 161 [2022-04-06 08:46:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:17,036 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1457 transitions. [2022-04-06 08:46:17,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1457 transitions. [2022-04-06 08:46:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-04-06 08:46:17,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:17,038 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-04-06 08:46:17,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 08:46:17,038 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:17,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:17,039 INFO L85 PathProgramCache]: Analyzing trace with hash 760045934, now seen corresponding path program 1 times [2022-04-06 08:46:17,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:17,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460367205] [2022-04-06 08:46:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:17,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:46:17,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:17,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460367205] [2022-04-06 08:46:17,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460367205] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:17,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:17,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:17,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092319460] [2022-04-06 08:46:17,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:17,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:17,180 INFO L87 Difference]: Start difference. First operand 1001 states and 1457 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:18,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:21,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:23,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:23,733 INFO L93 Difference]: Finished difference Result 1128 states and 1617 transitions. [2022-04-06 08:46:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:23,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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 162 [2022-04-06 08:46:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:23,736 INFO L225 Difference]: With dead ends: 1128 [2022-04-06 08:46:23,737 INFO L226 Difference]: Without dead ends: 1128 [2022-04-06 08:46:23,737 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:23,737 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:23,737 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 08:46:23,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-04-06 08:46:23,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1001. [2022-04-06 08:46:23,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4447791164658634) internal successors, (1439), 996 states have internal predecessors, (1439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:23,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1443 transitions. [2022-04-06 08:46:23,749 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1443 transitions. Word has length 162 [2022-04-06 08:46:23,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:23,750 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1443 transitions. [2022-04-06 08:46:23,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:23,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1443 transitions. [2022-04-06 08:46:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-06 08:46:23,752 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:23,752 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:23,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 08:46:23,752 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:23,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:23,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1459412900, now seen corresponding path program 1 times [2022-04-06 08:46:23,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:23,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703410120] [2022-04-06 08:46:23,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:23,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:23,884 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:46:23,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:23,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703410120] [2022-04-06 08:46:23,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703410120] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:23,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:23,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:23,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484709234] [2022-04-06 08:46:23,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:23,885 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:23,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:23,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:23,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:23,888 INFO L87 Difference]: Start difference. First operand 1001 states and 1443 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:26,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:28,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:29,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:29,127 INFO L93 Difference]: Finished difference Result 1034 states and 1482 transitions. [2022-04-06 08:46:29,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:29,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-04-06 08:46:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:29,129 INFO L225 Difference]: With dead ends: 1034 [2022-04-06 08:46:29,129 INFO L226 Difference]: Without dead ends: 1034 [2022-04-06 08:46:29,130 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:29,130 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 38 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:29,130 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 535 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 08:46:29,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2022-04-06 08:46:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1001. [2022-04-06 08:46:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4427710843373494) internal successors, (1437), 996 states have internal predecessors, (1437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1441 transitions. [2022-04-06 08:46:29,137 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1441 transitions. Word has length 164 [2022-04-06 08:46:29,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:29,138 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1441 transitions. [2022-04-06 08:46:29,138 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:29,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1441 transitions. [2022-04-06 08:46:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-04-06 08:46:29,139 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:29,139 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:29,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 08:46:29,140 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1551372169, now seen corresponding path program 1 times [2022-04-06 08:46:29,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:29,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524565799] [2022-04-06 08:46:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:29,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:46:29,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:29,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524565799] [2022-04-06 08:46:29,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524565799] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:29,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:29,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:29,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236386452] [2022-04-06 08:46:29,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:29,235 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:29,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:29,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:29,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:29,235 INFO L87 Difference]: Start difference. First operand 1001 states and 1441 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:32,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:33,508 INFO L93 Difference]: Finished difference Result 1026 states and 1470 transitions. [2022-04-06 08:46:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:33,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-04-06 08:46:33,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:33,511 INFO L225 Difference]: With dead ends: 1026 [2022-04-06 08:46:33,511 INFO L226 Difference]: Without dead ends: 1026 [2022-04-06 08:46:33,511 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:33,511 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 33 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:33,511 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 539 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:46:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2022-04-06 08:46:33,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1001. [2022-04-06 08:46:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4407630522088353) internal successors, (1435), 996 states have internal predecessors, (1435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1439 transitions. [2022-04-06 08:46:33,520 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1439 transitions. Word has length 165 [2022-04-06 08:46:33,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:33,520 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1439 transitions. [2022-04-06 08:46:33,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:33,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1439 transitions. [2022-04-06 08:46:33,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 08:46:33,522 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:33,522 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:33,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 08:46:33,522 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1131694392, now seen corresponding path program 1 times [2022-04-06 08:46:33,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:33,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368693650] [2022-04-06 08:46:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:33,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-06 08:46:33,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:33,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368693650] [2022-04-06 08:46:33,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368693650] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:33,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:33,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:46:33,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774410657] [2022-04-06 08:46:33,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:33,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:46:33,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:33,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:46:33,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:46:33,636 INFO L87 Difference]: Start difference. First operand 1001 states and 1439 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:34,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:36,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:38,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:39,255 INFO L93 Difference]: Finished difference Result 1472 states and 2118 transitions. [2022-04-06 08:46:39,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:46:39,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-06 08:46:39,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:39,260 INFO L225 Difference]: With dead ends: 1472 [2022-04-06 08:46:39,260 INFO L226 Difference]: Without dead ends: 1472 [2022-04-06 08:46:39,261 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:46:39,261 INFO L913 BasicCegarLoop]: 376 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:39,261 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 570 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 415 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:46:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-04-06 08:46:39,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-04-06 08:46:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1467 states have (on average 1.4410361281526927) internal successors, (2114), 1467 states have internal predecessors, (2114), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2118 transitions. [2022-04-06 08:46:39,276 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2118 transitions. Word has length 172 [2022-04-06 08:46:39,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:39,278 INFO L478 AbstractCegarLoop]: Abstraction has 1472 states and 2118 transitions. [2022-04-06 08:46:39,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:39,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2118 transitions. [2022-04-06 08:46:39,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 08:46:39,280 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:39,280 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:39,280 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 08:46:39,281 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:39,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:39,281 INFO L85 PathProgramCache]: Analyzing trace with hash 57013455, now seen corresponding path program 1 times [2022-04-06 08:46:39,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:39,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914593289] [2022-04-06 08:46:39,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:39,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:46:39,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:39,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914593289] [2022-04-06 08:46:39,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914593289] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:39,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:39,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:46:39,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081988826] [2022-04-06 08:46:39,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:39,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:46:39,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:39,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:46:39,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:46:39,395 INFO L87 Difference]: Start difference. First operand 1472 states and 2118 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:42,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:43,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:44,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:44,150 INFO L93 Difference]: Finished difference Result 1908 states and 2745 transitions. [2022-04-06 08:46:44,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:46:44,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 08:46:44,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:44,156 INFO L225 Difference]: With dead ends: 1908 [2022-04-06 08:46:44,156 INFO L226 Difference]: Without dead ends: 1908 [2022-04-06 08:46:44,156 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:46:44,156 INFO L913 BasicCegarLoop]: 300 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:44,157 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 494 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:46:44,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-04-06 08:46:44,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1903. [2022-04-06 08:46:44,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1898 states have (on average 1.4420442571127503) internal successors, (2737), 1898 states have internal predecessors, (2737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2741 transitions. [2022-04-06 08:46:44,170 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2741 transitions. Word has length 173 [2022-04-06 08:46:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:44,171 INFO L478 AbstractCegarLoop]: Abstraction has 1903 states and 2741 transitions. [2022-04-06 08:46:44,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2741 transitions. [2022-04-06 08:46:44,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-04-06 08:46:44,172 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:44,172 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:44,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 08:46:44,173 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:44,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash -57063487, now seen corresponding path program 1 times [2022-04-06 08:46:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:44,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446884094] [2022-04-06 08:46:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:44,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:44,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-04-06 08:46:44,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:44,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446884094] [2022-04-06 08:46:44,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446884094] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:44,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:44,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:44,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466050603] [2022-04-06 08:46:44,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:44,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:44,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:44,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:44,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:44,271 INFO L87 Difference]: Start difference. First operand 1903 states and 2741 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:45,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:47,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:48,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:48,300 INFO L93 Difference]: Finished difference Result 2100 states and 3024 transitions. [2022-04-06 08:46:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:48,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2022-04-06 08:46:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:48,304 INFO L225 Difference]: With dead ends: 2100 [2022-04-06 08:46:48,304 INFO L226 Difference]: Without dead ends: 2100 [2022-04-06 08:46:48,304 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:48,305 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 38 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:48,305 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 08:46:48,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-04-06 08:46:48,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2015. [2022-04-06 08:46:48,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4432835820895522) internal successors, (2901), 2010 states have internal predecessors, (2901), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2905 transitions. [2022-04-06 08:46:48,323 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2905 transitions. Word has length 183 [2022-04-06 08:46:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:48,323 INFO L478 AbstractCegarLoop]: Abstraction has 2015 states and 2905 transitions. [2022-04-06 08:46:48,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2905 transitions. [2022-04-06 08:46:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-04-06 08:46:48,348 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:48,348 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:46:48,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 08:46:48,348 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:48,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:48,348 INFO L85 PathProgramCache]: Analyzing trace with hash 20707135, now seen corresponding path program 1 times [2022-04-06 08:46:48,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:48,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769445001] [2022-04-06 08:46:48,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:48,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:48,451 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-06 08:46:48,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:48,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769445001] [2022-04-06 08:46:48,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769445001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:48,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:48,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:48,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109623120] [2022-04-06 08:46:48,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:48,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:48,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:48,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:48,452 INFO L87 Difference]: Start difference. First operand 2015 states and 2905 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:49,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:51,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:53,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:55,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:56,394 INFO L93 Difference]: Finished difference Result 2222 states and 3190 transitions. [2022-04-06 08:46:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:56,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-04-06 08:46:56,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:56,398 INFO L225 Difference]: With dead ends: 2222 [2022-04-06 08:46:56,398 INFO L226 Difference]: Without dead ends: 2222 [2022-04-06 08:46:56,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:56,398 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 63 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:56,398 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 586 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 507 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-04-06 08:46:56,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-04-06 08:46:56,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2099. [2022-04-06 08:46:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 2094 states have (on average 1.4441260744985673) internal successors, (3024), 2094 states have internal predecessors, (3024), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 3028 transitions. [2022-04-06 08:46:56,419 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 3028 transitions. Word has length 188 [2022-04-06 08:46:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:56,419 INFO L478 AbstractCegarLoop]: Abstraction has 2099 states and 3028 transitions. [2022-04-06 08:46:56,419 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:56,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 3028 transitions. [2022-04-06 08:46:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-04-06 08:46:56,421 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:56,421 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:56,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 08:46:56,421 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:56,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:56,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1813520391, now seen corresponding path program 1 times [2022-04-06 08:46:56,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:56,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182787526] [2022-04-06 08:46:56,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:56,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-06 08:46:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:56,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182787526] [2022-04-06 08:46:56,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182787526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:56,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:56,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962181390] [2022-04-06 08:46:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:56,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:56,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:56,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:56,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:56,543 INFO L87 Difference]: Start difference. First operand 2099 states and 3028 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) [2022-04-06 08:46:58,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:00,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:02,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:02,043 INFO L93 Difference]: Finished difference Result 2222 states and 3187 transitions. [2022-04-06 08:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:02,044 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 195 [2022-04-06 08:47:02,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:02,046 INFO L225 Difference]: With dead ends: 2222 [2022-04-06 08:47:02,047 INFO L226 Difference]: Without dead ends: 2222 [2022-04-06 08:47:02,047 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:02,047 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 55 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:02,047 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 586 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 08:47:02,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-04-06 08:47:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2120. [2022-04-06 08:47:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4425531914893617) internal successors, (3051), 2115 states have internal predecessors, (3051), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3055 transitions. [2022-04-06 08:47:02,095 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3055 transitions. Word has length 195 [2022-04-06 08:47:02,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:02,096 INFO L478 AbstractCegarLoop]: Abstraction has 2120 states and 3055 transitions. [2022-04-06 08:47:02,096 INFO L479 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) [2022-04-06 08:47:02,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3055 transitions. [2022-04-06 08:47:02,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-06 08:47:02,099 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:02,099 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:02,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 08:47:02,099 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:02,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:02,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1820237747, now seen corresponding path program 1 times [2022-04-06 08:47:02,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:02,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441946502] [2022-04-06 08:47:02,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:02,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:02,308 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-06 08:47:02,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:02,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441946502] [2022-04-06 08:47:02,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441946502] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:02,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:02,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:02,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918504508] [2022-04-06 08:47:02,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:02,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:02,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:02,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:02,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:02,310 INFO L87 Difference]: Start difference. First operand 2120 states and 3055 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:04,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:06,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:07,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:08,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:08,062 INFO L93 Difference]: Finished difference Result 2362 states and 3372 transitions. [2022-04-06 08:47:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:08,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-04-06 08:47:08,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:08,065 INFO L225 Difference]: With dead ends: 2362 [2022-04-06 08:47:08,065 INFO L226 Difference]: Without dead ends: 2362 [2022-04-06 08:47:08,066 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:08,067 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 104 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:08,067 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 372 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:47:08,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-04-06 08:47:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2120. [2022-04-06 08:47:08,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4368794326241134) internal successors, (3039), 2115 states have internal predecessors, (3039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:08,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3043 transitions. [2022-04-06 08:47:08,082 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3043 transitions. Word has length 196 [2022-04-06 08:47:08,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:08,083 INFO L478 AbstractCegarLoop]: Abstraction has 2120 states and 3043 transitions. [2022-04-06 08:47:08,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:08,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3043 transitions. [2022-04-06 08:47:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-04-06 08:47:08,085 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:08,085 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:08,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 08:47:08,085 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:08,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:08,086 INFO L85 PathProgramCache]: Analyzing trace with hash 763814783, now seen corresponding path program 1 times [2022-04-06 08:47:08,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:08,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568633472] [2022-04-06 08:47:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:08,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-04-06 08:47:08,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:08,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568633472] [2022-04-06 08:47:08,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568633472] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:08,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:08,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 08:47:08,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376839318] [2022-04-06 08:47:08,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:08,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:47:08,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:08,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:47:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:47:08,522 INFO L87 Difference]: Start difference. First operand 2120 states and 3043 transitions. Second operand has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:09,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:11,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:12,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:14,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:16,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:17,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:17,269 INFO L93 Difference]: Finished difference Result 2128 states and 3053 transitions. [2022-04-06 08:47:17,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 08:47:17,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-04-06 08:47:17,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:17,272 INFO L225 Difference]: With dead ends: 2128 [2022-04-06 08:47:17,272 INFO L226 Difference]: Without dead ends: 2120 [2022-04-06 08:47:17,272 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-06 08:47:17,272 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:17,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 841 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-04-06 08:47:17,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2022-04-06 08:47:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2120. [2022-04-06 08:47:17,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4364066193853429) internal successors, (3038), 2115 states have internal predecessors, (3038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:17,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3042 transitions. [2022-04-06 08:47:17,286 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3042 transitions. Word has length 197 [2022-04-06 08:47:17,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:17,286 INFO L478 AbstractCegarLoop]: Abstraction has 2120 states and 3042 transitions. [2022-04-06 08:47:17,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3042 transitions. [2022-04-06 08:47:17,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-04-06 08:47:17,289 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:17,289 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:17,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 08:47:17,289 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:17,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:17,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2018596800, now seen corresponding path program 1 times [2022-04-06 08:47:17,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:17,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148436426] [2022-04-06 08:47:17,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:17,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 08:47:18,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:18,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148436426] [2022-04-06 08:47:18,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148436426] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:47:18,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823844419] [2022-04-06 08:47:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:18,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:47:18,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:47:18,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:47:18,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 08:47:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:19,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 145 conjunts are in the unsatisfiable core [2022-04-06 08:47:19,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:47:19,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:47:19,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:47:19,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:47:20,076 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-04-06 08:47:20,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 11624174 treesize of output 2465911 [2022-04-06 08:47:31,372 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-04-06 08:47:31,374 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-04-06 08:47:31,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-04-06 08:47:31,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 08:47:31,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-04-06 08:47:31,575 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:197) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) ... 56 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 74 more [2022-04-06 08:47:31,582 INFO L158 Benchmark]: Toolchain (without parser) took 290165.46ms. Allocated memory was 187.7MB in the beginning and 992.0MB in the end (delta: 804.3MB). Free memory was 136.0MB in the beginning and 333.8MB in the end (delta: -197.8MB). Peak memory consumption was 705.0MB. Max. memory is 8.0GB. [2022-04-06 08:47:31,582 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 08:47:31,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.47ms. Allocated memory is still 187.7MB. Free memory was 135.8MB in the beginning and 142.8MB in the end (delta: -7.0MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-04-06 08:47:31,582 INFO L158 Benchmark]: Boogie Preprocessor took 93.85ms. Allocated memory is still 187.7MB. Free memory was 142.8MB in the beginning and 134.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-04-06 08:47:31,582 INFO L158 Benchmark]: RCFGBuilder took 1262.02ms. Allocated memory was 187.7MB in the beginning and 242.2MB in the end (delta: 54.5MB). Free memory was 134.9MB in the beginning and 170.1MB in the end (delta: -35.2MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. [2022-04-06 08:47:31,582 INFO L158 Benchmark]: IcfgTransformer took 39.78ms. Allocated memory is still 242.2MB. Free memory was 170.1MB in the beginning and 164.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-04-06 08:47:31,582 INFO L158 Benchmark]: TraceAbstraction took 288310.94ms. Allocated memory was 242.2MB in the beginning and 992.0MB in the end (delta: 749.7MB). Free memory was 164.3MB in the beginning and 333.8MB in the end (delta: -169.5MB). Peak memory consumption was 678.8MB. Max. memory is 8.0GB. [2022-04-06 08:47:31,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 453.47ms. Allocated memory is still 187.7MB. Free memory was 135.8MB in the beginning and 142.8MB in the end (delta: -7.0MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.85ms. Allocated memory is still 187.7MB. Free memory was 142.8MB in the beginning and 134.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1262.02ms. Allocated memory was 187.7MB in the beginning and 242.2MB in the end (delta: 54.5MB). Free memory was 134.9MB in the beginning and 170.1MB in the end (delta: -35.2MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. * IcfgTransformer took 39.78ms. Allocated memory is still 242.2MB. Free memory was 170.1MB in the beginning and 164.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * TraceAbstraction took 288310.94ms. Allocated memory was 242.2MB in the beginning and 992.0MB in the end (delta: 749.7MB). Free memory was 164.3MB in the beginning and 333.8MB in the end (delta: -169.5MB). Peak memory consumption was 678.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...