/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.15.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:14:15,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:14:15,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:14:15,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:14:15,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:14:15,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:14:15,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:14:15,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:14:15,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:14:15,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:14:15,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:14:15,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:14:15,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:14:15,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:14:15,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:14:15,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:14:15,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:14:15,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:14:15,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:14:16,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:14:16,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:14:16,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:14:16,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:14:16,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:14:16,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 20:14:16,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 20:14:16,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 20:14:16,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 20:14:16,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 20:14:16,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 20:14:16,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 20:14:16,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 20:14:16,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 20:14:16,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 20:14:16,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 20:14:16,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 20:14:16,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 20:14:16,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 20:14:16,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:14:16,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:14:16,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:14:16,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 20:14:16,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:14:16,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:14:16,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:14:16,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 20:14:16,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:14:16,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 20:14:16,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:14:16,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:14:16,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:14:16,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:14:16,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 20:14:16,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:14:16,028 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:14:16,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:14:16,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:14:16,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:14:16,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 20:14:16,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:14:16,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:14:16,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:14:16,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:14:16,030 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:14:16,030 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:14:16,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:14:16,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:14:16,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:14:16,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:14:16,247 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:14:16,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-02-23 20:14:16,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669d1b99/1b5253f394d24da7b6482cf0a36b7b16/FLAGc87f4cb4e [2022-02-23 20:14:16,880 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:14:16,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-02-23 20:14:16,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669d1b99/1b5253f394d24da7b6482cf0a36b7b16/FLAGc87f4cb4e [2022-02-23 20:14:17,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669d1b99/1b5253f394d24da7b6482cf0a36b7b16 [2022-02-23 20:14:17,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:14:17,289 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:14:17,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:14:17,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:14:17,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:14:17,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1891284f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17, skipping insertion in model container [2022-02-23 20:14:17,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:14:17,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:14:17,669 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.15.i.cil-2.c[75833,75846] [2022-02-23 20:14:17,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:14:17,686 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:14:17,783 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.15.i.cil-2.c[75833,75846] [2022-02-23 20:14:17,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:14:17,812 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:14:17,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17 WrapperNode [2022-02-23 20:14:17,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:14:17,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:14:17,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:14:17,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:14:17,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:14:17,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:14:17,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:14:17,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:14:17,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (1/1) ... [2022-02-23 20:14:17,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:14:17,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:14:17,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 20:14:18,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 20:14:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:14:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:14:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:14:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-23 20:14:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-23 20:14:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:14:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 20:14:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 20:14:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 20:14:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 20:14:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:14:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:14:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:14:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:14:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 20:14:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 20:14:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 20:14:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:14:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:14:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 20:14:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 20:14:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 20:14:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 20:14:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:14:18,170 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:14:18,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:14:18,913 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 20:14:19,358 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-23 20:14:19,358 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-23 20:14:19,370 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:14:19,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:14:19,382 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 20:14:19,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:19 BoogieIcfgContainer [2022-02-23 20:14:19,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:14:19,385 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:14:19,385 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:14:19,386 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:14:19,389 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:19" (1/1) ... [2022-02-23 20:14:19,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:14:19 BasicIcfg [2022-02-23 20:14:19,453 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:14:19,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:14:19,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:14:19,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:14:19,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:14:17" (1/4) ... [2022-02-23 20:14:19,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f58be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:14:19, skipping insertion in model container [2022-02-23 20:14:19,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:17" (2/4) ... [2022-02-23 20:14:19,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f58be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:14:19, skipping insertion in model container [2022-02-23 20:14:19,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:19" (3/4) ... [2022-02-23 20:14:19,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f58be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:14:19, skipping insertion in model container [2022-02-23 20:14:19,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:14:19" (4/4) ... [2022-02-23 20:14:19,462 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.cJordan [2022-02-23 20:14:19,470 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:14:19,470 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:14:19,520 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:14:19,528 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 20:14:19,528 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:14:19,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 20:14:19,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-23 20:14:19,554 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:19,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:19,554 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:19,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:19,558 INFO L85 PathProgramCache]: Analyzing trace with hash -6184136, now seen corresponding path program 1 times [2022-02-23 20:14:19,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:19,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116889221] [2022-02-23 20:14:19,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:19,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:20,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:20,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:20,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116889221] [2022-02-23 20:14:20,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116889221] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:20,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:20,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:20,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547295820] [2022-02-23 20:14:20,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:20,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:20,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:20,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:20,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:20,153 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:22,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:23,308 INFO L93 Difference]: Finished difference Result 195 states and 320 transitions. [2022-02-23 20:14:23,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-02-23 20:14:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:23,318 INFO L225 Difference]: With dead ends: 195 [2022-02-23 20:14:23,318 INFO L226 Difference]: Without dead ends: 174 [2022-02-23 20:14:23,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:23,322 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:23,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 631 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-23 20:14:23,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-02-23 20:14:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-02-23 20:14:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5657894736842106) internal successors, (238), 152 states have internal predecessors, (238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 242 transitions. [2022-02-23 20:14:23,375 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 242 transitions. Word has length 51 [2022-02-23 20:14:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:23,376 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 242 transitions. [2022-02-23 20:14:23,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 242 transitions. [2022-02-23 20:14:23,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:14:23,378 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:23,378 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:23,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:14:23,379 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:23,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2076241697, now seen corresponding path program 1 times [2022-02-23 20:14:23,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:23,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243460682] [2022-02-23 20:14:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:23,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:23,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243460682] [2022-02-23 20:14:23,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243460682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:23,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:23,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:23,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913285915] [2022-02-23 20:14:23,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:23,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:23,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:23,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:23,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:23,623 INFO L87 Difference]: Start difference. First operand 157 states and 242 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:25,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:26,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:28,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:28,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:28,894 INFO L93 Difference]: Finished difference Result 174 states and 262 transitions. [2022-02-23 20:14:28,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:28,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-23 20:14:28,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:28,897 INFO L225 Difference]: With dead ends: 174 [2022-02-23 20:14:28,897 INFO L226 Difference]: Without dead ends: 174 [2022-02-23 20:14:28,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:28,898 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 24 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:28,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 507 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-23 20:14:28,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-02-23 20:14:28,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-02-23 20:14:28,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5592105263157894) internal successors, (237), 152 states have internal predecessors, (237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 241 transitions. [2022-02-23 20:14:28,917 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 241 transitions. Word has length 64 [2022-02-23 20:14:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:28,917 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 241 transitions. [2022-02-23 20:14:28,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:28,917 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 241 transitions. [2022-02-23 20:14:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:14:28,919 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:28,919 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:28,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 20:14:28,920 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:28,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2005235870, now seen corresponding path program 1 times [2022-02-23 20:14:28,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:28,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442365581] [2022-02-23 20:14:28,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:28,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:29,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:29,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442365581] [2022-02-23 20:14:29,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442365581] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:29,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:29,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:29,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625428544] [2022-02-23 20:14:29,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:29,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:29,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:29,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:29,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:29,100 INFO L87 Difference]: Start difference. First operand 157 states and 241 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:30,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:32,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:34,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:35,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:35,654 INFO L93 Difference]: Finished difference Result 173 states and 260 transitions. [2022-02-23 20:14:35,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:35,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:14:35,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:35,656 INFO L225 Difference]: With dead ends: 173 [2022-02-23 20:14:35,656 INFO L226 Difference]: Without dead ends: 173 [2022-02-23 20:14:35,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:35,657 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 28 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:35,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-23 20:14:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-02-23 20:14:35,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2022-02-23 20:14:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5526315789473684) internal successors, (236), 152 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 240 transitions. [2022-02-23 20:14:35,666 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 240 transitions. Word has length 65 [2022-02-23 20:14:35,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:35,666 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 240 transitions. [2022-02-23 20:14:35,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:35,667 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 240 transitions. [2022-02-23 20:14:35,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:14:35,668 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:35,668 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:35,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 20:14:35,669 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:35,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:35,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1327909762, now seen corresponding path program 1 times [2022-02-23 20:14:35,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:35,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679468007] [2022-02-23 20:14:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:35,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:35,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:35,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:35,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679468007] [2022-02-23 20:14:35,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679468007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:35,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:35,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:35,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037587856] [2022-02-23 20:14:35,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:35,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:35,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:35,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:35,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:35,823 INFO L87 Difference]: Start difference. First operand 157 states and 240 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:38,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:39,062 INFO L93 Difference]: Finished difference Result 173 states and 259 transitions. [2022-02-23 20:14:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:39,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:14:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:39,063 INFO L225 Difference]: With dead ends: 173 [2022-02-23 20:14:39,064 INFO L226 Difference]: Without dead ends: 173 [2022-02-23 20:14:39,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:39,065 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:39,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:14:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-02-23 20:14:39,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2022-02-23 20:14:39,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5460526315789473) internal successors, (235), 152 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 239 transitions. [2022-02-23 20:14:39,080 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 239 transitions. Word has length 65 [2022-02-23 20:14:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:39,080 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 239 transitions. [2022-02-23 20:14:39,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 239 transitions. [2022-02-23 20:14:39,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:14:39,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:39,082 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:39,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 20:14:39,082 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:39,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:39,083 INFO L85 PathProgramCache]: Analyzing trace with hash 259801150, now seen corresponding path program 1 times [2022-02-23 20:14:39,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:39,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514334286] [2022-02-23 20:14:39,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:39,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:39,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:39,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:39,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514334286] [2022-02-23 20:14:39,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514334286] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:39,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:39,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:39,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417943332] [2022-02-23 20:14:39,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:39,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:39,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:39,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:39,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:39,247 INFO L87 Difference]: Start difference. First operand 157 states and 239 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:40,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:42,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:44,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:44,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:44,809 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2022-02-23 20:14:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:44,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:14:44,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:44,811 INFO L225 Difference]: With dead ends: 171 [2022-02-23 20:14:44,811 INFO L226 Difference]: Without dead ends: 171 [2022-02-23 20:14:44,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:44,812 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 20 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:44,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 513 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:14:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-02-23 20:14:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 157. [2022-02-23 20:14:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5394736842105263) internal successors, (234), 152 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:44,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 238 transitions. [2022-02-23 20:14:44,819 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 238 transitions. Word has length 65 [2022-02-23 20:14:44,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:44,819 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 238 transitions. [2022-02-23 20:14:44,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:44,819 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 238 transitions. [2022-02-23 20:14:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:14:44,820 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:44,821 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:44,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 20:14:44,821 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:44,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:44,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1672616674, now seen corresponding path program 1 times [2022-02-23 20:14:44,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:44,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217332847] [2022-02-23 20:14:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:44,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:44,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:44,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217332847] [2022-02-23 20:14:44,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217332847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:44,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:44,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:44,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221894043] [2022-02-23 20:14:44,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:44,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:44,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:44,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:44,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:44,941 INFO L87 Difference]: Start difference. First operand 157 states and 238 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:46,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:48,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:50,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:52,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:53,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:53,158 INFO L93 Difference]: Finished difference Result 170 states and 254 transitions. [2022-02-23 20:14:53,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:53,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:14:53,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:53,160 INFO L225 Difference]: With dead ends: 170 [2022-02-23 20:14:53,160 INFO L226 Difference]: Without dead ends: 170 [2022-02-23 20:14:53,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:53,161 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 18 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:53,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 515 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-23 20:14:53,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-23 20:14:53,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 157. [2022-02-23 20:14:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5328947368421053) internal successors, (233), 152 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 237 transitions. [2022-02-23 20:14:53,166 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 237 transitions. Word has length 65 [2022-02-23 20:14:53,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:53,166 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 237 transitions. [2022-02-23 20:14:53,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:53,166 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 237 transitions. [2022-02-23 20:14:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 20:14:53,179 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:53,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:53,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 20:14:53,180 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:53,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1494756417, now seen corresponding path program 1 times [2022-02-23 20:14:53,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:53,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091787490] [2022-02-23 20:14:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:53,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:53,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:53,343 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:53,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:53,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091787490] [2022-02-23 20:14:53,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091787490] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:53,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:53,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:53,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706931480] [2022-02-23 20:14:53,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:53,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:53,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:53,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:53,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:53,346 INFO L87 Difference]: Start difference. First operand 157 states and 237 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:55,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:55,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:55,940 INFO L93 Difference]: Finished difference Result 277 states and 423 transitions. [2022-02-23 20:14:55,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:55,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-23 20:14:55,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:55,942 INFO L225 Difference]: With dead ends: 277 [2022-02-23 20:14:55,942 INFO L226 Difference]: Without dead ends: 277 [2022-02-23 20:14:55,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:55,943 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 152 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:55,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 366 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-23 20:14:55,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-02-23 20:14:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 170. [2022-02-23 20:14:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5272727272727273) internal successors, (252), 165 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 256 transitions. [2022-02-23 20:14:55,949 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 256 transitions. Word has length 66 [2022-02-23 20:14:55,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:55,949 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 256 transitions. [2022-02-23 20:14:55,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 256 transitions. [2022-02-23 20:14:55,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:14:55,950 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:55,950 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:55,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 20:14:55,950 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:55,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1613548454, now seen corresponding path program 1 times [2022-02-23 20:14:55,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:55,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399345290] [2022-02-23 20:14:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:55,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:56,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:14:56,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:56,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399345290] [2022-02-23 20:14:56,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399345290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:56,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:56,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:56,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933844999] [2022-02-23 20:14:56,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:56,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:56,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:56,082 INFO L87 Difference]: Start difference. First operand 170 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:59,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:01,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:02,058 INFO L93 Difference]: Finished difference Result 277 states and 421 transitions. [2022-02-23 20:15:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:02,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-23 20:15:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:02,060 INFO L225 Difference]: With dead ends: 277 [2022-02-23 20:15:02,060 INFO L226 Difference]: Without dead ends: 277 [2022-02-23 20:15:02,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:02,061 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:02,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:15:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-02-23 20:15:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 171. [2022-02-23 20:15:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5180722891566265) internal successors, (252), 166 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 256 transitions. [2022-02-23 20:15:02,066 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 256 transitions. Word has length 67 [2022-02-23 20:15:02,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:02,066 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 256 transitions. [2022-02-23 20:15:02,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:02,066 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 256 transitions. [2022-02-23 20:15:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:15:02,067 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:02,073 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:02,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 20:15:02,073 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:02,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:02,073 INFO L85 PathProgramCache]: Analyzing trace with hash -572975874, now seen corresponding path program 1 times [2022-02-23 20:15:02,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:02,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827046501] [2022-02-23 20:15:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:02,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:02,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:02,195 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:02,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:02,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827046501] [2022-02-23 20:15:02,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827046501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:02,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:02,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:02,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511084804] [2022-02-23 20:15:02,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:02,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:02,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:02,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:02,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:02,198 INFO L87 Difference]: Start difference. First operand 171 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:05,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:07,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:07,699 INFO L93 Difference]: Finished difference Result 277 states and 419 transitions. [2022-02-23 20:15:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:07,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-23 20:15:07,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:07,701 INFO L225 Difference]: With dead ends: 277 [2022-02-23 20:15:07,701 INFO L226 Difference]: Without dead ends: 277 [2022-02-23 20:15:07,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:07,702 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 148 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:07,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:15:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-02-23 20:15:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 172. [2022-02-23 20:15:07,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5089820359281436) internal successors, (252), 167 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:07,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 256 transitions. [2022-02-23 20:15:07,707 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 256 transitions. Word has length 68 [2022-02-23 20:15:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:07,707 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 256 transitions. [2022-02-23 20:15:07,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:07,707 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 256 transitions. [2022-02-23 20:15:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:15:07,710 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:07,710 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:07,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 20:15:07,711 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:07,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1695960111, now seen corresponding path program 1 times [2022-02-23 20:15:07,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:07,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78465717] [2022-02-23 20:15:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:07,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:07,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:07,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78465717] [2022-02-23 20:15:07,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78465717] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:07,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:07,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:07,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967102240] [2022-02-23 20:15:07,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:07,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:07,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:07,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:07,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:07,857 INFO L87 Difference]: Start difference. First operand 172 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:09,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:11,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:13,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:15,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:15,609 INFO L93 Difference]: Finished difference Result 293 states and 441 transitions. [2022-02-23 20:15:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-23 20:15:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:15,611 INFO L225 Difference]: With dead ends: 293 [2022-02-23 20:15:15,611 INFO L226 Difference]: Without dead ends: 293 [2022-02-23 20:15:15,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:15,612 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 124 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:15,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 368 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-02-23 20:15:15,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-02-23 20:15:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 212. [2022-02-23 20:15:15,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 207 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:15,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 326 transitions. [2022-02-23 20:15:15,618 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 326 transitions. Word has length 68 [2022-02-23 20:15:15,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:15,618 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 326 transitions. [2022-02-23 20:15:15,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:15,618 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 326 transitions. [2022-02-23 20:15:15,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 20:15:15,619 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:15,619 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:15,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 20:15:15,619 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:15,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:15,620 INFO L85 PathProgramCache]: Analyzing trace with hash -749768695, now seen corresponding path program 1 times [2022-02-23 20:15:15,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:15,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477481810] [2022-02-23 20:15:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:15,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:15,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:15,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477481810] [2022-02-23 20:15:15,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477481810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:15,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:15,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:15,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035766820] [2022-02-23 20:15:15,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:15,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:15,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:15,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:15,736 INFO L87 Difference]: Start difference. First operand 212 states and 326 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:17,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:19,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:21,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:21,601 INFO L93 Difference]: Finished difference Result 317 states and 488 transitions. [2022-02-23 20:15:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:21,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-23 20:15:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:21,603 INFO L225 Difference]: With dead ends: 317 [2022-02-23 20:15:21,603 INFO L226 Difference]: Without dead ends: 317 [2022-02-23 20:15:21,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:21,604 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:21,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 394 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-23 20:15:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-02-23 20:15:21,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 237. [2022-02-23 20:15:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5991379310344827) internal successors, (371), 232 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 375 transitions. [2022-02-23 20:15:21,611 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 375 transitions. Word has length 69 [2022-02-23 20:15:21,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:21,611 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 375 transitions. [2022-02-23 20:15:21,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:21,611 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 375 transitions. [2022-02-23 20:15:21,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-23 20:15:21,612 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:21,612 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:21,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 20:15:21,612 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:21,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash -270896222, now seen corresponding path program 1 times [2022-02-23 20:15:21,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:21,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630161708] [2022-02-23 20:15:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:21,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:21,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:21,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:21,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630161708] [2022-02-23 20:15:21,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630161708] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:21,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:21,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:21,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926290969] [2022-02-23 20:15:21,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:21,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:21,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:21,729 INFO L87 Difference]: Start difference. First operand 237 states and 375 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:23,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:25,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:27,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:28,513 INFO L93 Difference]: Finished difference Result 393 states and 622 transitions. [2022-02-23 20:15:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:28,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-02-23 20:15:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:28,516 INFO L225 Difference]: With dead ends: 393 [2022-02-23 20:15:28,516 INFO L226 Difference]: Without dead ends: 393 [2022-02-23 20:15:28,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:28,516 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:28,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 378 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-23 20:15:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-02-23 20:15:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 301. [2022-02-23 20:15:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.625) internal successors, (481), 296 states have internal predecessors, (481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 485 transitions. [2022-02-23 20:15:28,523 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 485 transitions. Word has length 97 [2022-02-23 20:15:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:28,524 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 485 transitions. [2022-02-23 20:15:28,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:28,524 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 485 transitions. [2022-02-23 20:15:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-02-23 20:15:28,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:28,525 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:28,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 20:15:28,525 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:28,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:28,526 INFO L85 PathProgramCache]: Analyzing trace with hash 856203158, now seen corresponding path program 1 times [2022-02-23 20:15:28,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:28,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620596916] [2022-02-23 20:15:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:28,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:28,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:28,642 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:15:28,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:28,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620596916] [2022-02-23 20:15:28,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620596916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:28,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:28,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:28,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667220470] [2022-02-23 20:15:28,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:28,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:28,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:28,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:28,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:28,644 INFO L87 Difference]: Start difference. First operand 301 states and 485 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:30,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:31,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:33,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:35,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:36,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:36,200 INFO L93 Difference]: Finished difference Result 421 states and 665 transitions. [2022-02-23 20:15:36,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:36,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-02-23 20:15:36,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:36,202 INFO L225 Difference]: With dead ends: 421 [2022-02-23 20:15:36,202 INFO L226 Difference]: Without dead ends: 421 [2022-02-23 20:15:36,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:36,203 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 125 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:36,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 366 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-02-23 20:15:36,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-23 20:15:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 338. [2022-02-23 20:15:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.6336336336336337) internal successors, (544), 333 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:36,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 548 transitions. [2022-02-23 20:15:36,210 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 548 transitions. Word has length 102 [2022-02-23 20:15:36,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:36,210 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 548 transitions. [2022-02-23 20:15:36,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:36,210 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 548 transitions. [2022-02-23 20:15:36,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-02-23 20:15:36,211 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:36,211 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:36,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 20:15:36,212 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:36,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:36,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1180104561, now seen corresponding path program 1 times [2022-02-23 20:15:36,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:36,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268534083] [2022-02-23 20:15:36,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:36,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:36,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-02-23 20:15:36,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:36,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268534083] [2022-02-23 20:15:36,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268534083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:36,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:36,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:36,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520716512] [2022-02-23 20:15:36,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:36,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:36,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:36,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:36,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:36,339 INFO L87 Difference]: Start difference. First operand 338 states and 548 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:38,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:38,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:38,818 INFO L93 Difference]: Finished difference Result 381 states and 610 transitions. [2022-02-23 20:15:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:38,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-02-23 20:15:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:38,820 INFO L225 Difference]: With dead ends: 381 [2022-02-23 20:15:38,820 INFO L226 Difference]: Without dead ends: 381 [2022-02-23 20:15:38,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:38,821 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 31 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:38,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 527 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 20:15:38,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-02-23 20:15:38,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 360. [2022-02-23 20:15:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.6309859154929578) internal successors, (579), 355 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) [2022-02-23 20:15:38,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 583 transitions. [2022-02-23 20:15:38,828 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 583 transitions. Word has length 103 [2022-02-23 20:15:38,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:38,829 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 583 transitions. [2022-02-23 20:15:38,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:38,829 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 583 transitions. [2022-02-23 20:15:38,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-23 20:15:38,830 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:38,830 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:38,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 20:15:38,830 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash -259403225, now seen corresponding path program 1 times [2022-02-23 20:15:38,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:38,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454833330] [2022-02-23 20:15:38,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:38,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:15:38,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:38,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454833330] [2022-02-23 20:15:38,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454833330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:38,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:38,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:38,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935495361] [2022-02-23 20:15:38,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:38,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:38,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:38,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:38,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:38,976 INFO L87 Difference]: Start difference. First operand 360 states and 583 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:40,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:42,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:44,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:45,460 INFO L93 Difference]: Finished difference Result 381 states and 609 transitions. [2022-02-23 20:15:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:45,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-23 20:15:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:45,462 INFO L225 Difference]: With dead ends: 381 [2022-02-23 20:15:45,462 INFO L226 Difference]: Without dead ends: 381 [2022-02-23 20:15:45,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:45,463 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:45,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 527 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-23 20:15:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-02-23 20:15:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 360. [2022-02-23 20:15:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.628169014084507) internal successors, (578), 355 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) [2022-02-23 20:15:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 582 transitions. [2022-02-23 20:15:45,470 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 582 transitions. Word has length 110 [2022-02-23 20:15:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:45,470 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 582 transitions. [2022-02-23 20:15:45,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 582 transitions. [2022-02-23 20:15:45,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-23 20:15:45,472 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:45,472 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:45,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 20:15:45,472 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:45,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1251152028, now seen corresponding path program 1 times [2022-02-23 20:15:45,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:45,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712765854] [2022-02-23 20:15:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:45,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:15:45,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:45,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712765854] [2022-02-23 20:15:45,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712765854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:45,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:45,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:45,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618399543] [2022-02-23 20:15:45,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:45,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:45,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:45,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:45,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:45,583 INFO L87 Difference]: Start difference. First operand 360 states and 582 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:48,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:50,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:52,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:52,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:52,796 INFO L93 Difference]: Finished difference Result 440 states and 689 transitions. [2022-02-23 20:15:52,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:52,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-23 20:15:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:52,799 INFO L225 Difference]: With dead ends: 440 [2022-02-23 20:15:52,799 INFO L226 Difference]: Without dead ends: 440 [2022-02-23 20:15:52,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:52,800 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:52,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 482 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-02-23 20:15:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-02-23 20:15:52,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 360. [2022-02-23 20:15:52,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.611267605633803) internal successors, (572), 355 states have internal predecessors, (572), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 576 transitions. [2022-02-23 20:15:52,807 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 576 transitions. Word has length 111 [2022-02-23 20:15:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:52,807 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 576 transitions. [2022-02-23 20:15:52,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 576 transitions. [2022-02-23 20:15:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-23 20:15:52,809 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:52,809 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:52,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 20:15:52,809 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:52,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1419682677, now seen corresponding path program 1 times [2022-02-23 20:15:52,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:52,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363675887] [2022-02-23 20:15:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:52,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:52,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-23 20:15:52,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:52,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363675887] [2022-02-23 20:15:52,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363675887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:52,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:52,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:52,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62729633] [2022-02-23 20:15:52,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:52,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:52,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:52,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:52,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:52,933 INFO L87 Difference]: Start difference. First operand 360 states and 576 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:54,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:56,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:58,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:58,734 INFO L93 Difference]: Finished difference Result 389 states and 615 transitions. [2022-02-23 20:15:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:58,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-02-23 20:15:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:58,736 INFO L225 Difference]: With dead ends: 389 [2022-02-23 20:15:58,736 INFO L226 Difference]: Without dead ends: 389 [2022-02-23 20:15:58,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:58,737 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:58,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 592 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-23 20:15:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-02-23 20:15:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 376. [2022-02-23 20:15:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.6037735849056605) internal successors, (595), 371 states have internal predecessors, (595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:58,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 599 transitions. [2022-02-23 20:15:58,744 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 599 transitions. Word has length 117 [2022-02-23 20:15:58,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:58,745 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 599 transitions. [2022-02-23 20:15:58,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:58,745 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 599 transitions. [2022-02-23 20:15:58,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-23 20:15:58,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:58,746 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:58,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 20:15:58,746 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:58,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:58,747 INFO L85 PathProgramCache]: Analyzing trace with hash -587358197, now seen corresponding path program 1 times [2022-02-23 20:15:58,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:58,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119215625] [2022-02-23 20:15:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:58,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:58,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-23 20:15:58,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:58,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119215625] [2022-02-23 20:15:58,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119215625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:58,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:58,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:58,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851887506] [2022-02-23 20:15:58,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:58,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:58,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:58,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:58,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:58,865 INFO L87 Difference]: Start difference. First operand 376 states and 599 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:00,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:01,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:03,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:04,312 INFO L93 Difference]: Finished difference Result 394 states and 622 transitions. [2022-02-23 20:16:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:04,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-02-23 20:16:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:04,314 INFO L225 Difference]: With dead ends: 394 [2022-02-23 20:16:04,314 INFO L226 Difference]: Without dead ends: 394 [2022-02-23 20:16:04,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:04,314 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 32 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:04,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 533 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-23 20:16:04,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-02-23 20:16:04,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 376. [2022-02-23 20:16:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.601078167115903) internal successors, (594), 371 states have internal predecessors, (594), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 598 transitions. [2022-02-23 20:16:04,322 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 598 transitions. Word has length 117 [2022-02-23 20:16:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:04,322 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 598 transitions. [2022-02-23 20:16:04,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 598 transitions. [2022-02-23 20:16:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-23 20:16:04,323 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:04,324 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:04,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 20:16:04,324 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:04,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1813192879, now seen corresponding path program 1 times [2022-02-23 20:16:04,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:04,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731159984] [2022-02-23 20:16:04,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:04,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:04,506 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-23 20:16:04,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:04,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731159984] [2022-02-23 20:16:04,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731159984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:04,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:04,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:16:04,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845285489] [2022-02-23 20:16:04,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:04,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:16:04,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:04,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:16:04,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:04,509 INFO L87 Difference]: Start difference. First operand 376 states and 598 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:05,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:07,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:09,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:10,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:12,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:12,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:12,733 INFO L93 Difference]: Finished difference Result 385 states and 609 transitions. [2022-02-23 20:16:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 20:16:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-23 20:16:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:12,735 INFO L225 Difference]: With dead ends: 385 [2022-02-23 20:16:12,735 INFO L226 Difference]: Without dead ends: 385 [2022-02-23 20:16:12,735 INFO L932 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 [2022-02-23 20:16:12,736 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 3 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:12,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 665 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-02-23 20:16:12,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-23 20:16:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2022-02-23 20:16:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5921052631578947) internal successors, (605), 380 states have internal predecessors, (605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 609 transitions. [2022-02-23 20:16:12,743 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 609 transitions. Word has length 118 [2022-02-23 20:16:12,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:12,743 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 609 transitions. [2022-02-23 20:16:12,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:12,744 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 609 transitions. [2022-02-23 20:16:12,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-23 20:16:12,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:12,745 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:12,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 20:16:12,745 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:12,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:12,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1814516943, now seen corresponding path program 1 times [2022-02-23 20:16:12,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:12,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168941362] [2022-02-23 20:16:12,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:12,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:12,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-23 20:16:12,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:12,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168941362] [2022-02-23 20:16:12,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168941362] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:12,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:12,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:12,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543512956] [2022-02-23 20:16:12,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:12,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:12,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:12,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:12,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:12,877 INFO L87 Difference]: Start difference. First operand 385 states and 609 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:15,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:16,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:16,065 INFO L93 Difference]: Finished difference Result 402 states and 630 transitions. [2022-02-23 20:16:16,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:16,066 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 118 [2022-02-23 20:16:16,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:16,067 INFO L225 Difference]: With dead ends: 402 [2022-02-23 20:16:16,067 INFO L226 Difference]: Without dead ends: 402 [2022-02-23 20:16:16,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:16,068 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 36 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:16,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 535 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:16:16,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-02-23 20:16:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 385. [2022-02-23 20:16:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5894736842105264) internal successors, (604), 380 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 608 transitions. [2022-02-23 20:16:16,076 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 608 transitions. Word has length 118 [2022-02-23 20:16:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:16,076 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 608 transitions. [2022-02-23 20:16:16,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 608 transitions. [2022-02-23 20:16:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-23 20:16:16,077 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:16,078 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:16,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 20:16:16,078 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:16,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:16,078 INFO L85 PathProgramCache]: Analyzing trace with hash 265444301, now seen corresponding path program 1 times [2022-02-23 20:16:16,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:16,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586701398] [2022-02-23 20:16:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-23 20:16:16,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:16,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586701398] [2022-02-23 20:16:16,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586701398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:16,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:16,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:16,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859515651] [2022-02-23 20:16:16,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:16,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:16,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:16,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:16,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:16,196 INFO L87 Difference]: Start difference. First operand 385 states and 608 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:18,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:18,534 INFO L93 Difference]: Finished difference Result 392 states and 617 transitions. [2022-02-23 20:16:18,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:18,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-23 20:16:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:18,536 INFO L225 Difference]: With dead ends: 392 [2022-02-23 20:16:18,536 INFO L226 Difference]: Without dead ends: 392 [2022-02-23 20:16:18,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:18,537 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 30 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:18,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 549 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:16:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-02-23 20:16:18,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 385. [2022-02-23 20:16:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5868421052631578) internal successors, (603), 380 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:18,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 607 transitions. [2022-02-23 20:16:18,544 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 607 transitions. Word has length 124 [2022-02-23 20:16:18,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:18,545 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 607 transitions. [2022-02-23 20:16:18,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:18,545 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 607 transitions. [2022-02-23 20:16:18,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-23 20:16:18,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:18,546 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:18,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 20:16:18,547 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:18,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:18,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1400381102, now seen corresponding path program 1 times [2022-02-23 20:16:18,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:18,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584619507] [2022-02-23 20:16:18,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:18,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:18,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:18,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584619507] [2022-02-23 20:16:18,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584619507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:18,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:18,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:18,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966447304] [2022-02-23 20:16:18,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:18,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:18,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:18,670 INFO L87 Difference]: Start difference. First operand 385 states and 607 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:19,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:21,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:23,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:23,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:23,969 INFO L93 Difference]: Finished difference Result 474 states and 729 transitions. [2022-02-23 20:16:23,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:23,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-23 20:16:23,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:23,971 INFO L225 Difference]: With dead ends: 474 [2022-02-23 20:16:23,971 INFO L226 Difference]: Without dead ends: 474 [2022-02-23 20:16:23,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:23,972 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:23,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 394 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-23 20:16:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-02-23 20:16:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 385. [2022-02-23 20:16:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.581578947368421) internal successors, (601), 380 states have internal predecessors, (601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 605 transitions. [2022-02-23 20:16:23,979 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 605 transitions. Word has length 125 [2022-02-23 20:16:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:23,980 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 605 transitions. [2022-02-23 20:16:23,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 605 transitions. [2022-02-23 20:16:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-23 20:16:23,981 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:23,981 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:23,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 20:16:23,982 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:23,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1931032870, now seen corresponding path program 1 times [2022-02-23 20:16:23,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:23,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441723079] [2022-02-23 20:16:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:24,102 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:16:24,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:24,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441723079] [2022-02-23 20:16:24,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441723079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:24,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:24,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:24,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596760572] [2022-02-23 20:16:24,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:24,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:24,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:24,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:24,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:24,104 INFO L87 Difference]: Start difference. First operand 385 states and 605 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:25,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:28,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:28,931 INFO L93 Difference]: Finished difference Result 472 states and 722 transitions. [2022-02-23 20:16:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-23 20:16:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:28,933 INFO L225 Difference]: With dead ends: 472 [2022-02-23 20:16:28,933 INFO L226 Difference]: Without dead ends: 472 [2022-02-23 20:16:28,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:28,934 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 144 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:28,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 370 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-23 20:16:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-02-23 20:16:28,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 385. [2022-02-23 20:16:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.568421052631579) internal successors, (596), 380 states have internal predecessors, (596), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:28,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 600 transitions. [2022-02-23 20:16:28,941 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 600 transitions. Word has length 132 [2022-02-23 20:16:28,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:28,941 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 600 transitions. [2022-02-23 20:16:28,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 600 transitions. [2022-02-23 20:16:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-23 20:16:28,943 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:28,943 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:28,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 20:16:28,943 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:28,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash -512603857, now seen corresponding path program 1 times [2022-02-23 20:16:28,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:28,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821569811] [2022-02-23 20:16:28,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:28,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:29,069 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:29,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:29,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821569811] [2022-02-23 20:16:29,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821569811] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:29,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:29,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:29,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014800393] [2022-02-23 20:16:29,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:29,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:29,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:29,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:29,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:29,071 INFO L87 Difference]: Start difference. First operand 385 states and 600 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:31,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:33,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:34,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:34,064 INFO L93 Difference]: Finished difference Result 514 states and 788 transitions. [2022-02-23 20:16:34,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:34,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-23 20:16:34,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:34,066 INFO L225 Difference]: With dead ends: 514 [2022-02-23 20:16:34,066 INFO L226 Difference]: Without dead ends: 514 [2022-02-23 20:16:34,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:34,066 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 116 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:34,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 367 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-23 20:16:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-02-23 20:16:34,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 428. [2022-02-23 20:16:34,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.574468085106383) internal successors, (666), 423 states have internal predecessors, (666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:34,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 670 transitions. [2022-02-23 20:16:34,075 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 670 transitions. Word has length 133 [2022-02-23 20:16:34,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:34,075 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 670 transitions. [2022-02-23 20:16:34,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:34,075 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 670 transitions. [2022-02-23 20:16:34,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-23 20:16:34,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:34,096 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:34,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 20:16:34,097 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:34,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:34,097 INFO L85 PathProgramCache]: Analyzing trace with hash -796549232, now seen corresponding path program 1 times [2022-02-23 20:16:34,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:34,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316282428] [2022-02-23 20:16:34,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:34,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:34,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:16:34,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:34,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316282428] [2022-02-23 20:16:34,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316282428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:34,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:34,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:34,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059336935] [2022-02-23 20:16:34,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:34,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:34,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:34,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:34,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:34,257 INFO L87 Difference]: Start difference. First operand 428 states and 670 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:36,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:39,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:39,835 INFO L93 Difference]: Finished difference Result 517 states and 793 transitions. [2022-02-23 20:16:39,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:39,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-02-23 20:16:39,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:39,838 INFO L225 Difference]: With dead ends: 517 [2022-02-23 20:16:39,838 INFO L226 Difference]: Without dead ends: 515 [2022-02-23 20:16:39,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:39,839 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 117 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:39,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 394 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-23 20:16:39,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-02-23 20:16:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 430. [2022-02-23 20:16:39,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5741176470588236) internal successors, (669), 425 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 673 transitions. [2022-02-23 20:16:39,846 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 673 transitions. Word has length 134 [2022-02-23 20:16:39,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:39,847 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 673 transitions. [2022-02-23 20:16:39,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:39,847 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 673 transitions. [2022-02-23 20:16:39,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-23 20:16:39,848 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:39,848 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:39,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 20:16:39,849 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:39,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:39,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1510348940, now seen corresponding path program 1 times [2022-02-23 20:16:39,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:39,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805495313] [2022-02-23 20:16:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:39,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-23 20:16:39,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:39,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805495313] [2022-02-23 20:16:39,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805495313] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:39,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:39,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:39,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234233201] [2022-02-23 20:16:39,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:39,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:39,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:39,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:39,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:39,971 INFO L87 Difference]: Start difference. First operand 430 states and 673 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) [2022-02-23 20:16:41,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:43,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:44,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:45,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:45,299 INFO L93 Difference]: Finished difference Result 505 states and 771 transitions. [2022-02-23 20:16:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:45,300 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 146 [2022-02-23 20:16:45,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:45,301 INFO L225 Difference]: With dead ends: 505 [2022-02-23 20:16:45,301 INFO L226 Difference]: Without dead ends: 505 [2022-02-23 20:16:45,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:45,302 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 147 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:45,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 398 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-23 20:16:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-02-23 20:16:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 430. [2022-02-23 20:16:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5576470588235294) internal successors, (662), 425 states have internal predecessors, (662), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:45,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 666 transitions. [2022-02-23 20:16:45,311 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 666 transitions. Word has length 146 [2022-02-23 20:16:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:45,311 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 666 transitions. [2022-02-23 20:16:45,311 INFO L471 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) [2022-02-23 20:16:45,311 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 666 transitions. [2022-02-23 20:16:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-23 20:16:45,313 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:45,313 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:45,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 20:16:45,313 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:45,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1478589548, now seen corresponding path program 1 times [2022-02-23 20:16:45,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:45,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440708408] [2022-02-23 20:16:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:45,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-23 20:16:45,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:45,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440708408] [2022-02-23 20:16:45,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440708408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:45,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:45,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:45,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796222121] [2022-02-23 20:16:45,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:45,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:45,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:45,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:45,472 INFO L87 Difference]: Start difference. First operand 430 states and 666 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) [2022-02-23 20:16:48,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:49,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:49,589 INFO L93 Difference]: Finished difference Result 495 states and 751 transitions. [2022-02-23 20:16:49,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:49,589 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 146 [2022-02-23 20:16:49,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:49,591 INFO L225 Difference]: With dead ends: 495 [2022-02-23 20:16:49,591 INFO L226 Difference]: Without dead ends: 495 [2022-02-23 20:16:49,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:49,592 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 138 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:49,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:16:49,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-02-23 20:16:49,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 430. [2022-02-23 20:16:49,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5411764705882354) internal successors, (655), 425 states have internal predecessors, (655), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 659 transitions. [2022-02-23 20:16:49,599 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 659 transitions. Word has length 146 [2022-02-23 20:16:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:49,600 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 659 transitions. [2022-02-23 20:16:49,600 INFO L471 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) [2022-02-23 20:16:49,600 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 659 transitions. [2022-02-23 20:16:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-23 20:16:49,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:49,601 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:49,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 20:16:49,601 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:49,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:49,602 INFO L85 PathProgramCache]: Analyzing trace with hash 24615192, now seen corresponding path program 1 times [2022-02-23 20:16:49,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:49,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125571041] [2022-02-23 20:16:49,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:49,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:16:49,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:49,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125571041] [2022-02-23 20:16:49,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125571041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:49,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:49,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:49,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912072299] [2022-02-23 20:16:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:49,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:49,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:49,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:49,721 INFO L87 Difference]: Start difference. First operand 430 states and 659 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:51,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:53,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:55,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:56,339 INFO L93 Difference]: Finished difference Result 505 states and 768 transitions. [2022-02-23 20:16:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:56,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-23 20:16:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:56,341 INFO L225 Difference]: With dead ends: 505 [2022-02-23 20:16:56,341 INFO L226 Difference]: Without dead ends: 505 [2022-02-23 20:16:56,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:56,342 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 65 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:56,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 523 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-23 20:16:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-02-23 20:16:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 462. [2022-02-23 20:16:56,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 457 states have (on average 1.5404814004376368) internal successors, (704), 457 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) [2022-02-23 20:16:56,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 708 transitions. [2022-02-23 20:16:56,349 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 708 transitions. Word has length 146 [2022-02-23 20:16:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:56,349 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 708 transitions. [2022-02-23 20:16:56,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 708 transitions. [2022-02-23 20:16:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-23 20:16:56,351 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:56,351 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:56,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 20:16:56,351 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:56,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:56,351 INFO L85 PathProgramCache]: Analyzing trace with hash -928586441, now seen corresponding path program 1 times [2022-02-23 20:16:56,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:56,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771964259] [2022-02-23 20:16:56,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:56,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:16:56,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:56,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771964259] [2022-02-23 20:16:56,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771964259] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:56,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:56,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:56,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386928983] [2022-02-23 20:16:56,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:56,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:56,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:56,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:56,504 INFO L87 Difference]: Start difference. First operand 462 states and 708 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:58,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:00,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:02,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:03,184 INFO L93 Difference]: Finished difference Result 569 states and 860 transitions. [2022-02-23 20:17:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:03,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-23 20:17:03,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:03,186 INFO L225 Difference]: With dead ends: 569 [2022-02-23 20:17:03,186 INFO L226 Difference]: Without dead ends: 569 [2022-02-23 20:17:03,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:03,187 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 119 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:03,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 418 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-23 20:17:03,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-02-23 20:17:03,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 460. [2022-02-23 20:17:03,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.531868131868132) internal successors, (697), 455 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 701 transitions. [2022-02-23 20:17:03,194 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 701 transitions. Word has length 146 [2022-02-23 20:17:03,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:03,194 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 701 transitions. [2022-02-23 20:17:03,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 701 transitions. [2022-02-23 20:17:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:17:03,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:03,196 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:03,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 20:17:03,196 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:03,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:03,197 INFO L85 PathProgramCache]: Analyzing trace with hash 511559468, now seen corresponding path program 1 times [2022-02-23 20:17:03,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:03,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786258443] [2022-02-23 20:17:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:03,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:17:03,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:03,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786258443] [2022-02-23 20:17:03,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786258443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:03,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:03,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:03,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618719667] [2022-02-23 20:17:03,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:03,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:03,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:03,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:03,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:03,317 INFO L87 Difference]: Start difference. First operand 460 states and 701 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:04,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:05,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:07,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:08,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:08,203 INFO L93 Difference]: Finished difference Result 525 states and 787 transitions. [2022-02-23 20:17:08,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:08,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:17:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:08,205 INFO L225 Difference]: With dead ends: 525 [2022-02-23 20:17:08,205 INFO L226 Difference]: Without dead ends: 525 [2022-02-23 20:17:08,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:08,206 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 118 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:08,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 418 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:17:08,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-02-23 20:17:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 460. [2022-02-23 20:17:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.5186813186813186) internal successors, (691), 455 states have internal predecessors, (691), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 695 transitions. [2022-02-23 20:17:08,213 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 695 transitions. Word has length 147 [2022-02-23 20:17:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:08,214 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 695 transitions. [2022-02-23 20:17:08,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:08,214 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 695 transitions. [2022-02-23 20:17:08,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-23 20:17:08,215 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:08,215 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:08,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 20:17:08,215 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:08,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:08,216 INFO L85 PathProgramCache]: Analyzing trace with hash -70968412, now seen corresponding path program 1 times [2022-02-23 20:17:08,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:08,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161662367] [2022-02-23 20:17:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:08,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:08,360 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:17:08,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:08,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161662367] [2022-02-23 20:17:08,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161662367] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:08,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:08,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:08,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510560266] [2022-02-23 20:17:08,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:08,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:08,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:08,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:08,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:08,362 INFO L87 Difference]: Start difference. First operand 460 states and 695 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) [2022-02-23 20:17:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:11,171 INFO L93 Difference]: Finished difference Result 567 states and 844 transitions. [2022-02-23 20:17:11,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:11,172 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 149 [2022-02-23 20:17:11,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:11,174 INFO L225 Difference]: With dead ends: 567 [2022-02-23 20:17:11,174 INFO L226 Difference]: Without dead ends: 567 [2022-02-23 20:17:11,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:11,174 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 120 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:11,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 418 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-23 20:17:11,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-02-23 20:17:11,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 488. [2022-02-23 20:17:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 483 states have (on average 1.5072463768115942) internal successors, (728), 483 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 732 transitions. [2022-02-23 20:17:11,182 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 732 transitions. Word has length 149 [2022-02-23 20:17:11,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:11,182 INFO L470 AbstractCegarLoop]: Abstraction has 488 states and 732 transitions. [2022-02-23 20:17:11,182 INFO L471 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) [2022-02-23 20:17:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 732 transitions. [2022-02-23 20:17:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-23 20:17:11,184 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:11,184 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:11,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 20:17:11,184 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:11,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1676992206, now seen corresponding path program 1 times [2022-02-23 20:17:11,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:11,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827923073] [2022-02-23 20:17:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:11,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:17:11,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:11,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827923073] [2022-02-23 20:17:11,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827923073] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:11,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:11,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:11,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780393167] [2022-02-23 20:17:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:11,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:11,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:11,312 INFO L87 Difference]: Start difference. First operand 488 states and 732 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) [2022-02-23 20:17:13,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:15,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:17,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:17,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:17,891 INFO L93 Difference]: Finished difference Result 553 states and 817 transitions. [2022-02-23 20:17:17,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:17,891 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 150 [2022-02-23 20:17:17,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:17,893 INFO L225 Difference]: With dead ends: 553 [2022-02-23 20:17:17,893 INFO L226 Difference]: Without dead ends: 553 [2022-02-23 20:17:17,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:17,894 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 119 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:17,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 390 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 468 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-23 20:17:17,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-23 20:17:17,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 488. [2022-02-23 20:17:17,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 483 states have (on average 1.4927536231884058) internal successors, (721), 483 states have internal predecessors, (721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 725 transitions. [2022-02-23 20:17:17,901 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 725 transitions. Word has length 150 [2022-02-23 20:17:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:17,901 INFO L470 AbstractCegarLoop]: Abstraction has 488 states and 725 transitions. [2022-02-23 20:17:17,901 INFO L471 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) [2022-02-23 20:17:17,902 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 725 transitions. [2022-02-23 20:17:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-23 20:17:17,903 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:17,903 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:17,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 20:17:17,903 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:17,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash -713601832, now seen corresponding path program 1 times [2022-02-23 20:17:17,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:17,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46351787] [2022-02-23 20:17:17,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:17,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:18,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:18,051 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-23 20:17:18,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:18,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46351787] [2022-02-23 20:17:18,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46351787] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:18,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:18,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:18,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312363881] [2022-02-23 20:17:18,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:18,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:18,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:18,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:18,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:18,053 INFO L87 Difference]: Start difference. First operand 488 states and 725 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:19,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:21,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:23,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:24,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:24,347 INFO L93 Difference]: Finished difference Result 595 states and 875 transitions. [2022-02-23 20:17:24,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:24,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-23 20:17:24,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:24,349 INFO L225 Difference]: With dead ends: 595 [2022-02-23 20:17:24,349 INFO L226 Difference]: Without dead ends: 595 [2022-02-23 20:17:24,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:24,350 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 112 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:24,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 390 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-23 20:17:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-02-23 20:17:24,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 523. [2022-02-23 20:17:24,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 518 states have (on average 1.4864864864864864) internal successors, (770), 518 states have internal predecessors, (770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:24,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 774 transitions. [2022-02-23 20:17:24,358 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 774 transitions. Word has length 156 [2022-02-23 20:17:24,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:24,358 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 774 transitions. [2022-02-23 20:17:24,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 774 transitions. [2022-02-23 20:17:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-23 20:17:24,360 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:24,360 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:24,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 20:17:24,360 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash 741405720, now seen corresponding path program 1 times [2022-02-23 20:17:24,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:24,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816938539] [2022-02-23 20:17:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:24,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-23 20:17:24,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:24,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816938539] [2022-02-23 20:17:24,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816938539] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:24,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:24,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:24,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335918017] [2022-02-23 20:17:24,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:24,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:24,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:24,485 INFO L87 Difference]: Start difference. First operand 523 states and 774 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:27,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:29,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:30,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:30,325 INFO L93 Difference]: Finished difference Result 588 states and 862 transitions. [2022-02-23 20:17:30,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:30,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-23 20:17:30,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:30,327 INFO L225 Difference]: With dead ends: 588 [2022-02-23 20:17:30,327 INFO L226 Difference]: Without dead ends: 588 [2022-02-23 20:17:30,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:30,327 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 111 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:30,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 390 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-23 20:17:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-02-23 20:17:30,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 523. [2022-02-23 20:17:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 518 states have (on average 1.4787644787644787) internal successors, (766), 518 states have internal predecessors, (766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 770 transitions. [2022-02-23 20:17:30,335 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 770 transitions. Word has length 157 [2022-02-23 20:17:30,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:30,335 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 770 transitions. [2022-02-23 20:17:30,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:30,335 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 770 transitions. [2022-02-23 20:17:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-23 20:17:30,336 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:30,337 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:30,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 20:17:30,337 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:30,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 2102470359, now seen corresponding path program 1 times [2022-02-23 20:17:30,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:30,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551863576] [2022-02-23 20:17:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-23 20:17:30,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:30,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551863576] [2022-02-23 20:17:30,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551863576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:30,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:30,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:30,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589948799] [2022-02-23 20:17:30,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:30,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:30,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:30,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:30,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:30,502 INFO L87 Difference]: Start difference. First operand 523 states and 770 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:33,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:33,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:33,681 INFO L93 Difference]: Finished difference Result 1012 states and 1488 transitions. [2022-02-23 20:17:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-23 20:17:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:33,684 INFO L225 Difference]: With dead ends: 1012 [2022-02-23 20:17:33,684 INFO L226 Difference]: Without dead ends: 1012 [2022-02-23 20:17:33,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:33,684 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:33,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 578 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:17:33,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-02-23 20:17:33,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2022-02-23 20:17:33,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1007 states have (on average 1.4736842105263157) internal successors, (1484), 1007 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1488 transitions. [2022-02-23 20:17:33,698 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1488 transitions. Word has length 174 [2022-02-23 20:17:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:33,698 INFO L470 AbstractCegarLoop]: Abstraction has 1012 states and 1488 transitions. [2022-02-23 20:17:33,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1488 transitions. [2022-02-23 20:17:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-23 20:17:33,700 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:33,700 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:33,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 20:17:33,700 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:33,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:33,701 INFO L85 PathProgramCache]: Analyzing trace with hash 689207752, now seen corresponding path program 1 times [2022-02-23 20:17:33,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:33,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544113044] [2022-02-23 20:17:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:33,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:33,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:17:33,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:33,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544113044] [2022-02-23 20:17:33,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544113044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:33,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:33,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:33,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520698365] [2022-02-23 20:17:33,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:33,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:33,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:33,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:33,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:33,842 INFO L87 Difference]: Start difference. First operand 1012 states and 1488 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:35,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:36,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:37,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:37,433 INFO L93 Difference]: Finished difference Result 1468 states and 2157 transitions. [2022-02-23 20:17:37,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:37,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-02-23 20:17:37,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:37,437 INFO L225 Difference]: With dead ends: 1468 [2022-02-23 20:17:37,437 INFO L226 Difference]: Without dead ends: 1468 [2022-02-23 20:17:37,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:37,438 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:37,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 579 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-23 20:17:37,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-02-23 20:17:37,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1468. [2022-02-23 20:17:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1463 states have (on average 1.4716336295283663) internal successors, (2153), 1463 states have internal predecessors, (2153), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:37,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2157 transitions. [2022-02-23 20:17:37,455 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2157 transitions. Word has length 175 [2022-02-23 20:17:37,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:37,456 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 2157 transitions. [2022-02-23 20:17:37,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:37,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2157 transitions. [2022-02-23 20:17:37,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-23 20:17:37,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:37,458 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:37,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 20:17:37,459 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:37,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:37,459 INFO L85 PathProgramCache]: Analyzing trace with hash -340760717, now seen corresponding path program 1 times [2022-02-23 20:17:37,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:37,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142521548] [2022-02-23 20:17:37,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:37,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:17:37,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:37,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142521548] [2022-02-23 20:17:37,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142521548] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:37,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:37,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:37,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669230193] [2022-02-23 20:17:37,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:37,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:37,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:37,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:37,608 INFO L87 Difference]: Start difference. First operand 1468 states and 2157 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:39,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:41,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:41,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:41,642 INFO L93 Difference]: Finished difference Result 1915 states and 2815 transitions. [2022-02-23 20:17:41,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-23 20:17:41,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:41,649 INFO L225 Difference]: With dead ends: 1915 [2022-02-23 20:17:41,649 INFO L226 Difference]: Without dead ends: 1915 [2022-02-23 20:17:41,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:41,649 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:41,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 459 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:17:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-02-23 20:17:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1915. [2022-02-23 20:17:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1910 states have (on average 1.4717277486910996) internal successors, (2811), 1910 states have internal predecessors, (2811), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2815 transitions. [2022-02-23 20:17:41,672 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2815 transitions. Word has length 176 [2022-02-23 20:17:41,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:41,673 INFO L470 AbstractCegarLoop]: Abstraction has 1915 states and 2815 transitions. [2022-02-23 20:17:41,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2815 transitions. [2022-02-23 20:17:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-23 20:17:41,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:41,676 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:41,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 20:17:41,676 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:41,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:41,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2144302994, now seen corresponding path program 1 times [2022-02-23 20:17:41,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:41,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754535092] [2022-02-23 20:17:41,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:41,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-02-23 20:17:41,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:41,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754535092] [2022-02-23 20:17:41,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754535092] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:41,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:41,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:41,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434422346] [2022-02-23 20:17:41,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:41,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:41,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:41,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:41,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:41,787 INFO L87 Difference]: Start difference. First operand 1915 states and 2815 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 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) [2022-02-23 20:17:43,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:45,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:46,120 INFO L93 Difference]: Finished difference Result 1942 states and 2850 transitions. [2022-02-23 20:17:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:46,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 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 176 [2022-02-23 20:17:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:46,125 INFO L225 Difference]: With dead ends: 1942 [2022-02-23 20:17:46,125 INFO L226 Difference]: Without dead ends: 1942 [2022-02-23 20:17:46,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:46,126 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:46,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 425 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-23 20:17:46,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2022-02-23 20:17:46,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1942. [2022-02-23 20:17:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1937 states have (on average 1.469282395456892) internal successors, (2846), 1937 states have internal predecessors, (2846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:46,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2850 transitions. [2022-02-23 20:17:46,147 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2850 transitions. Word has length 176 [2022-02-23 20:17:46,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:46,147 INFO L470 AbstractCegarLoop]: Abstraction has 1942 states and 2850 transitions. [2022-02-23 20:17:46,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 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) [2022-02-23 20:17:46,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2850 transitions. [2022-02-23 20:17:46,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-23 20:17:46,150 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:46,150 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:46,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 20:17:46,150 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:46,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:46,151 INFO L85 PathProgramCache]: Analyzing trace with hash -464764367, now seen corresponding path program 1 times [2022-02-23 20:17:46,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:46,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153507329] [2022-02-23 20:17:46,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:46,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-23 20:17:46,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:46,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153507329] [2022-02-23 20:17:46,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153507329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:46,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:46,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:46,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673118441] [2022-02-23 20:17:46,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:46,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:46,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:46,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:46,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:46,282 INFO L87 Difference]: Start difference. First operand 1942 states and 2850 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:47,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:50,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:50,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:50,656 INFO L93 Difference]: Finished difference Result 1944 states and 2852 transitions. [2022-02-23 20:17:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:17:50,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-23 20:17:50,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:50,661 INFO L225 Difference]: With dead ends: 1944 [2022-02-23 20:17:50,661 INFO L226 Difference]: Without dead ends: 1944 [2022-02-23 20:17:50,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:50,662 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:50,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 404 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-23 20:17:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-02-23 20:17:50,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2022-02-23 20:17:50,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1939 states have (on average 1.4687983496647756) internal successors, (2848), 1939 states have internal predecessors, (2848), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:50,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2852 transitions. [2022-02-23 20:17:50,684 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2852 transitions. Word has length 176 [2022-02-23 20:17:50,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:50,684 INFO L470 AbstractCegarLoop]: Abstraction has 1944 states and 2852 transitions. [2022-02-23 20:17:50,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2852 transitions. [2022-02-23 20:17:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-02-23 20:17:50,690 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:50,690 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:50,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 20:17:50,690 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:50,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash 533126362, now seen corresponding path program 1 times [2022-02-23 20:17:50,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:50,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292156068] [2022-02-23 20:17:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:50,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-23 20:17:50,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:50,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292156068] [2022-02-23 20:17:50,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292156068] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:17:50,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275730740] [2022-02-23 20:17:50,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:50,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:17:50,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:17:50,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:17:50,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 20:17:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:51,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 20:17:51,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:17:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-02-23 20:17:52,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 20:17:52,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275730740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:52,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 20:17:52,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-23 20:17:52,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123156434] [2022-02-23 20:17:52,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:52,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 20:17:52,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:52,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 20:17:52,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:17:52,132 INFO L87 Difference]: Start difference. First operand 1944 states and 2852 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:52,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:52,176 INFO L93 Difference]: Finished difference Result 2439 states and 3585 transitions. [2022-02-23 20:17:52,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 20:17:52,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-02-23 20:17:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:52,182 INFO L225 Difference]: With dead ends: 2439 [2022-02-23 20:17:52,183 INFO L226 Difference]: Without dead ends: 2439 [2022-02-23 20:17:52,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:17:52,183 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:52,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 386 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 20:17:52,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2022-02-23 20:17:52,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2022-02-23 20:17:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2434 states have (on average 1.471240755957272) internal successors, (3581), 2434 states have internal predecessors, (3581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:52,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3585 transitions. [2022-02-23 20:17:52,205 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3585 transitions. Word has length 299 [2022-02-23 20:17:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:52,205 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 3585 transitions. [2022-02-23 20:17:52,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3585 transitions. [2022-02-23 20:17:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-23 20:17:52,211 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:52,211 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:52,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-23 20:17:52,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-02-23 20:17:52,436 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:52,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:52,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1869481902, now seen corresponding path program 1 times [2022-02-23 20:17:52,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:52,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988510738] [2022-02-23 20:17:52,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:52,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:52,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 1019 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-02-23 20:17:52,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:52,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988510738] [2022-02-23 20:17:52,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988510738] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:52,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:52,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:52,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597235214] [2022-02-23 20:17:52,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:52,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:52,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:52,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:52,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:52,710 INFO L87 Difference]: Start difference. First operand 2439 states and 3585 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:54,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:56,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:58,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:59,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:59,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:59,596 INFO L93 Difference]: Finished difference Result 2749 states and 4004 transitions. [2022-02-23 20:17:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:59,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-02-23 20:17:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:59,605 INFO L225 Difference]: With dead ends: 2749 [2022-02-23 20:17:59,605 INFO L226 Difference]: Without dead ends: 2749 [2022-02-23 20:17:59,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:17:59,605 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 37 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:59,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 627 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-23 20:17:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2022-02-23 20:17:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2648. [2022-02-23 20:17:59,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2643 states have (on average 1.4661369655694287) internal successors, (3875), 2643 states have internal predecessors, (3875), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:59,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3879 transitions. [2022-02-23 20:17:59,635 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3879 transitions. Word has length 426 [2022-02-23 20:17:59,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:59,635 INFO L470 AbstractCegarLoop]: Abstraction has 2648 states and 3879 transitions. [2022-02-23 20:17:59,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:59,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3879 transitions. [2022-02-23 20:17:59,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-23 20:17:59,641 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:59,641 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:59,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 20:17:59,641 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:59,642 INFO L85 PathProgramCache]: Analyzing trace with hash 190440595, now seen corresponding path program 1 times [2022-02-23 20:17:59,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:59,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035383893] [2022-02-23 20:17:59,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:59,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 750 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-02-23 20:17:59,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:59,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035383893] [2022-02-23 20:17:59,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035383893] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:59,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:59,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:17:59,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301905478] [2022-02-23 20:17:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:59,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:17:59,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:59,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:17:59,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:17:59,933 INFO L87 Difference]: Start difference. First operand 2648 states and 3879 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) [2022-02-23 20:18:02,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:04,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:04,623 INFO L93 Difference]: Finished difference Result 3185 states and 4672 transitions. [2022-02-23 20:18:04,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:04,627 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 426 [2022-02-23 20:18:04,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:04,636 INFO L225 Difference]: With dead ends: 3185 [2022-02-23 20:18:04,636 INFO L226 Difference]: Without dead ends: 3185 [2022-02-23 20:18:04,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:04,637 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 138 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:04,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 382 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 264 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-02-23 20:18:04,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2022-02-23 20:18:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3185. [2022-02-23 20:18:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 3180 states have (on average 1.4679245283018867) internal successors, (4668), 3180 states have internal predecessors, (4668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4672 transitions. [2022-02-23 20:18:04,674 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4672 transitions. Word has length 426 [2022-02-23 20:18:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:04,674 INFO L470 AbstractCegarLoop]: Abstraction has 3185 states and 4672 transitions. [2022-02-23 20:18:04,674 INFO L471 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) [2022-02-23 20:18:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4672 transitions. [2022-02-23 20:18:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-02-23 20:18:04,680 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:04,681 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:04,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 20:18:04,681 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash 323931843, now seen corresponding path program 1 times [2022-02-23 20:18:04,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:04,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051706741] [2022-02-23 20:18:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-02-23 20:18:04,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:04,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051706741] [2022-02-23 20:18:04,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051706741] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:04,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:04,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:04,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341618038] [2022-02-23 20:18:04,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:04,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:04,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:04,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:04,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:04,972 INFO L87 Difference]: Start difference. First operand 3185 states and 4672 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:06,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:08,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:09,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:09,772 INFO L93 Difference]: Finished difference Result 3717 states and 5450 transitions. [2022-02-23 20:18:09,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:09,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 427 [2022-02-23 20:18:09,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:09,779 INFO L225 Difference]: With dead ends: 3717 [2022-02-23 20:18:09,779 INFO L226 Difference]: Without dead ends: 3717 [2022-02-23 20:18:09,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:09,780 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:09,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-23 20:18:09,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-02-23 20:18:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3717. [2022-02-23 20:18:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3712 states have (on average 1.4671336206896552) internal successors, (5446), 3712 states have internal predecessors, (5446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5450 transitions. [2022-02-23 20:18:09,820 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5450 transitions. Word has length 427 [2022-02-23 20:18:09,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:09,821 INFO L470 AbstractCegarLoop]: Abstraction has 3717 states and 5450 transitions. [2022-02-23 20:18:09,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5450 transitions. [2022-02-23 20:18:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-23 20:18:09,828 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:09,828 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:09,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 20:18:09,828 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:09,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:09,829 INFO L85 PathProgramCache]: Analyzing trace with hash -71724402, now seen corresponding path program 1 times [2022-02-23 20:18:09,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:09,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854549831] [2022-02-23 20:18:09,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:09,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:10,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-02-23 20:18:10,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:10,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854549831] [2022-02-23 20:18:10,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854549831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:10,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:10,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:10,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148917648] [2022-02-23 20:18:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:10,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:10,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:10,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:10,093 INFO L87 Difference]: Start difference. First operand 3717 states and 5450 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:11,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:13,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:15,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:15,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:15,645 INFO L93 Difference]: Finished difference Result 4217 states and 6180 transitions. [2022-02-23 20:18:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:15,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-02-23 20:18:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:15,669 INFO L225 Difference]: With dead ends: 4217 [2022-02-23 20:18:15,669 INFO L226 Difference]: Without dead ends: 4217 [2022-02-23 20:18:15,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:15,669 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:15,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 445 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:18:15,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4217 states. [2022-02-23 20:18:15,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4217 to 4217. [2022-02-23 20:18:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 4212 states have (on average 1.466286799620133) internal successors, (6176), 4212 states have internal predecessors, (6176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6180 transitions. [2022-02-23 20:18:15,709 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6180 transitions. Word has length 428 [2022-02-23 20:18:15,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:15,710 INFO L470 AbstractCegarLoop]: Abstraction has 4217 states and 6180 transitions. [2022-02-23 20:18:15,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:15,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6180 transitions. [2022-02-23 20:18:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-02-23 20:18:15,718 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:15,718 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:15,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-23 20:18:15,719 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2121350020, now seen corresponding path program 1 times [2022-02-23 20:18:15,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:15,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886265174] [2022-02-23 20:18:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:15,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:16,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 1642 trivial. 0 not checked. [2022-02-23 20:18:16,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:16,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886265174] [2022-02-23 20:18:16,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886265174] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:16,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:16,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:18:16,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146793290] [2022-02-23 20:18:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:16,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:18:16,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:18:16,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:18:16,058 INFO L87 Difference]: Start difference. First operand 4217 states and 6180 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:17,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:20,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:22,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:22,870 INFO L93 Difference]: Finished difference Result 4378 states and 6371 transitions. [2022-02-23 20:18:22,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:18:22,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 555 [2022-02-23 20:18:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:22,877 INFO L225 Difference]: With dead ends: 4378 [2022-02-23 20:18:22,877 INFO L226 Difference]: Without dead ends: 4378 [2022-02-23 20:18:22,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:18:22,878 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 51 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:22,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 625 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-23 20:18:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2022-02-23 20:18:22,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 4217. [2022-02-23 20:18:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 4212 states have (on average 1.4643874643874644) internal successors, (6168), 4212 states have internal predecessors, (6168), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:22,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6172 transitions. [2022-02-23 20:18:22,917 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6172 transitions. Word has length 555 [2022-02-23 20:18:22,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:22,917 INFO L470 AbstractCegarLoop]: Abstraction has 4217 states and 6172 transitions. [2022-02-23 20:18:22,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:22,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6172 transitions. [2022-02-23 20:18:22,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-02-23 20:18:22,926 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:22,926 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:22,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-23 20:18:22,926 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:22,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1699591293, now seen corresponding path program 1 times [2022-02-23 20:18:22,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:22,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269344215] [2022-02-23 20:18:22,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:22,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1138 proven. 189 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-02-23 20:18:23,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:23,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269344215] [2022-02-23 20:18:23,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269344215] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:18:23,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154727027] [2022-02-23 20:18:23,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:23,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:18:23,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:18:23,336 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:18:23,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 20:18:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:24,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 20:18:24,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:18:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1072 proven. 0 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2022-02-23 20:18:25,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 20:18:25,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154727027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:25,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 20:18:25,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-23 20:18:25,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910864902] [2022-02-23 20:18:25,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:25,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 20:18:25,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:25,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 20:18:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:18:25,176 INFO L87 Difference]: Start difference. First operand 4217 states and 6172 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:25,221 INFO L93 Difference]: Finished difference Result 4754 states and 6967 transitions. [2022-02-23 20:18:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 20:18:25,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 555 [2022-02-23 20:18:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:25,230 INFO L225 Difference]: With dead ends: 4754 [2022-02-23 20:18:25,230 INFO L226 Difference]: Without dead ends: 4754 [2022-02-23 20:18:25,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:18:25,231 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 138 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:25,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 382 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 20:18:25,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2022-02-23 20:18:25,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 4754. [2022-02-23 20:18:25,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4754 states, 4749 states have (on average 1.4662034112444726) internal successors, (6963), 4749 states have internal predecessors, (6963), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:25,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4754 states to 4754 states and 6967 transitions. [2022-02-23 20:18:25,298 INFO L78 Accepts]: Start accepts. Automaton has 4754 states and 6967 transitions. Word has length 555 [2022-02-23 20:18:25,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:25,298 INFO L470 AbstractCegarLoop]: Abstraction has 4754 states and 6967 transitions. [2022-02-23 20:18:25,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:25,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4754 states and 6967 transitions. [2022-02-23 20:18:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-02-23 20:18:25,307 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:25,308 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:18:25,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 20:18:25,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-02-23 20:18:25,532 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:25,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:25,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1694333736, now seen corresponding path program 1 times [2022-02-23 20:18:25,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:25,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277109061] [2022-02-23 20:18:25,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:25,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 823 proven. 0 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2022-02-23 20:18:25,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:25,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277109061] [2022-02-23 20:18:25,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277109061] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:25,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:25,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:18:25,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040358449] [2022-02-23 20:18:25,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:25,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:18:25,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:25,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:18:25,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:25,925 INFO L87 Difference]: Start difference. First operand 4754 states and 6967 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:26,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:28,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:30,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:30,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:30,846 INFO L93 Difference]: Finished difference Result 5255 states and 7697 transitions. [2022-02-23 20:18:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:18:30,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-02-23 20:18:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:30,856 INFO L225 Difference]: With dead ends: 5255 [2022-02-23 20:18:30,856 INFO L226 Difference]: Without dead ends: 5255 [2022-02-23 20:18:30,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:18:30,857 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:30,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:18:30,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2022-02-23 20:18:30,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 5255. [2022-02-23 20:18:30,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5250 states have (on average 1.4653333333333334) internal successors, (7693), 5250 states have internal predecessors, (7693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 7697 transitions. [2022-02-23 20:18:30,910 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 7697 transitions. Word has length 558 [2022-02-23 20:18:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:30,910 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 7697 transitions. [2022-02-23 20:18:30,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 7697 transitions. [2022-02-23 20:18:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-02-23 20:18:30,959 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:30,959 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:18:30,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-23 20:18:30,959 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:30,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1575939639, now seen corresponding path program 1 times [2022-02-23 20:18:30,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:30,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791114750] [2022-02-23 20:18:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1601 proven. 119 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-02-23 20:18:31,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:31,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791114750] [2022-02-23 20:18:31,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791114750] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:18:31,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796447921] [2022-02-23 20:18:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:31,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:18:31,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:18:31,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:18:31,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 20:18:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:32,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 2515 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-23 20:18:32,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:18:32,916 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:18:32,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:18:33,030 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:18:33,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-23 20:18:33,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:18:33,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-23 20:18:33,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-23 20:18:33,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-23 20:18:33,574 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-23 20:18:33,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-02-23 20:18:33,643 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:18:33,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-02-23 20:18:33,949 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:18:33,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:18:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1394 proven. 201 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-02-23 20:18:34,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:18:34,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-02-23 20:18:34,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-02-23 20:18:38,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 172 [2022-02-23 20:18:38,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1392 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2022-02-23 20:18:38,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796447921] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:18:38,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:18:38,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 13] total 22 [2022-02-23 20:18:38,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976485469] [2022-02-23 20:18:38,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:38,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:18:38,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:38,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:18:38,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=399, Unknown=1, NotChecked=0, Total=462 [2022-02-23 20:18:38,829 INFO L87 Difference]: Start difference. First operand 5255 states and 7697 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:40,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:41,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:50,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:50,510 INFO L93 Difference]: Finished difference Result 8224 states and 11996 transitions. [2022-02-23 20:18:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:18:50,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-02-23 20:18:50,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:50,521 INFO L225 Difference]: With dead ends: 8224 [2022-02-23 20:18:50,521 INFO L226 Difference]: Without dead ends: 8224 [2022-02-23 20:18:50,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1138 GetRequests, 1114 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=91, Invalid=556, Unknown=3, NotChecked=0, Total=650 [2022-02-23 20:18:50,522 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 424 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:50,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 940 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 523 Invalid, 0 Unknown, 260 Unchecked, 3.5s Time] [2022-02-23 20:18:50,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8224 states. [2022-02-23 20:18:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8224 to 7107. [2022-02-23 20:18:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.4760630808223036) internal successors, (10483), 7102 states have internal predecessors, (10483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10487 transitions. [2022-02-23 20:18:50,627 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10487 transitions. Word has length 558 [2022-02-23 20:18:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:50,628 INFO L470 AbstractCegarLoop]: Abstraction has 7107 states and 10487 transitions. [2022-02-23 20:18:50,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10487 transitions. [2022-02-23 20:18:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-02-23 20:18:50,642 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:50,642 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:18:50,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-23 20:18:50,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:18:50,856 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:50,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash -793315798, now seen corresponding path program 1 times [2022-02-23 20:18:50,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:50,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768889393] [2022-02-23 20:18:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:50,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2790 backedges. 1461 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2022-02-23 20:18:51,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:51,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768889393] [2022-02-23 20:18:51,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768889393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:51,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:51,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:18:51,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193368142] [2022-02-23 20:18:51,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:51,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:18:51,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:51,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:18:51,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:18:51,245 INFO L87 Difference]: Start difference. First operand 7107 states and 10487 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:53,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:18:53,716 INFO L93 Difference]: Finished difference Result 7369 states and 10795 transitions. [2022-02-23 20:18:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:18:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-02-23 20:18:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:18:53,726 INFO L225 Difference]: With dead ends: 7369 [2022-02-23 20:18:53,726 INFO L226 Difference]: Without dead ends: 7369 [2022-02-23 20:18:53,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:18:53,727 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 48 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:18:53,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 623 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:18:53,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7369 states. [2022-02-23 20:18:53,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7369 to 7107. [2022-02-23 20:18:53,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.4739509997183893) internal successors, (10468), 7102 states have internal predecessors, (10468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10472 transitions. [2022-02-23 20:18:53,813 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10472 transitions. Word has length 561 [2022-02-23 20:18:53,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:18:53,813 INFO L470 AbstractCegarLoop]: Abstraction has 7107 states and 10472 transitions. [2022-02-23 20:18:53,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10472 transitions. [2022-02-23 20:18:53,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-02-23 20:18:53,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:18:53,826 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:18:53,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-23 20:18:53,826 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:18:53,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:18:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1432119467, now seen corresponding path program 1 times [2022-02-23 20:18:53,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:18:53,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200831121] [2022-02-23 20:18:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:18:53,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:18:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:54,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:18:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:18:54,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2022-02-23 20:18:54,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:18:54,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200831121] [2022-02-23 20:18:54,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200831121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:18:54,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:18:54,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:18:54,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832152141] [2022-02-23 20:18:54,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:18:54,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:18:54,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:18:54,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:18:54,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:18:54,117 INFO L87 Difference]: Start difference. First operand 7107 states and 10472 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:18:56,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:18:58,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:00,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:01,066 INFO L93 Difference]: Finished difference Result 7359 states and 10775 transitions. [2022-02-23 20:19:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:01,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-02-23 20:19:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:01,085 INFO L225 Difference]: With dead ends: 7359 [2022-02-23 20:19:01,085 INFO L226 Difference]: Without dead ends: 7279 [2022-02-23 20:19:01,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:01,087 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 33 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:01,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 621 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-23 20:19:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7279 states. [2022-02-23 20:19:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7279 to 7037. [2022-02-23 20:19:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 7032 states have (on average 1.4765358361774743) internal successors, (10383), 7032 states have internal predecessors, (10383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 10387 transitions. [2022-02-23 20:19:01,176 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 10387 transitions. Word has length 561 [2022-02-23 20:19:01,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:01,176 INFO L470 AbstractCegarLoop]: Abstraction has 7037 states and 10387 transitions. [2022-02-23 20:19:01,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:01,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 10387 transitions. [2022-02-23 20:19:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2022-02-23 20:19:01,190 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:01,190 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:01,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-23 20:19:01,190 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:01,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:01,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1234805621, now seen corresponding path program 1 times [2022-02-23 20:19:01,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:01,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610111080] [2022-02-23 20:19:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:01,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:01,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3305 backedges. 1748 proven. 81 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2022-02-23 20:19:01,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:01,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610111080] [2022-02-23 20:19:01,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610111080] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:01,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080913114] [2022-02-23 20:19:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:01,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:01,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:01,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:01,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 20:19:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:02,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 2724 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 20:19:02,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:19:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3305 backedges. 2255 proven. 0 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2022-02-23 20:19:03,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 20:19:03,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080913114] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:03,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 20:19:03,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-23 20:19:03,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456583791] [2022-02-23 20:19:03,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:03,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 20:19:03,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:03,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 20:19:03,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:19:03,590 INFO L87 Difference]: Start difference. First operand 7037 states and 10387 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:03,654 INFO L93 Difference]: Finished difference Result 7928 states and 11710 transitions. [2022-02-23 20:19:03,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 20:19:03,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 603 [2022-02-23 20:19:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:03,667 INFO L225 Difference]: With dead ends: 7928 [2022-02-23 20:19:03,668 INFO L226 Difference]: Without dead ends: 7928 [2022-02-23 20:19:03,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:19:03,670 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 134 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:03,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 388 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 20:19:03,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2022-02-23 20:19:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7928. [2022-02-23 20:19:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7923 states have (on average 1.4774706550549035) internal successors, (11706), 7923 states have internal predecessors, (11706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 11710 transitions. [2022-02-23 20:19:03,766 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 11710 transitions. Word has length 603 [2022-02-23 20:19:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:03,767 INFO L470 AbstractCegarLoop]: Abstraction has 7928 states and 11710 transitions. [2022-02-23 20:19:03,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 11710 transitions. [2022-02-23 20:19:03,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-02-23 20:19:03,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:03,779 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:19:03,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-23 20:19:04,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:04,004 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:04,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash 829998474, now seen corresponding path program 1 times [2022-02-23 20:19:04,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:04,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104299318] [2022-02-23 20:19:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:04,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:04,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 1681 proven. 0 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-02-23 20:19:04,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:04,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104299318] [2022-02-23 20:19:04,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104299318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:04,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:04,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:04,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317002066] [2022-02-23 20:19:04,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:04,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:04,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:04,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:04,333 INFO L87 Difference]: Start difference. First operand 7928 states and 11710 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:07,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:09,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:09,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:09,836 INFO L93 Difference]: Finished difference Result 8202 states and 12038 transitions. [2022-02-23 20:19:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:09,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 624 [2022-02-23 20:19:09,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:09,846 INFO L225 Difference]: With dead ends: 8202 [2022-02-23 20:19:09,846 INFO L226 Difference]: Without dead ends: 8202 [2022-02-23 20:19:09,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:09,847 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 43 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:09,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 619 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:19:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8202 states. [2022-02-23 20:19:09,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8202 to 7928. [2022-02-23 20:19:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7923 states have (on average 1.4753250031553704) internal successors, (11689), 7923 states have internal predecessors, (11689), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 11693 transitions. [2022-02-23 20:19:09,990 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 11693 transitions. Word has length 624 [2022-02-23 20:19:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:09,991 INFO L470 AbstractCegarLoop]: Abstraction has 7928 states and 11693 transitions. [2022-02-23 20:19:09,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 11693 transitions. [2022-02-23 20:19:10,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-02-23 20:19:10,003 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:10,003 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:10,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-23 20:19:10,003 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:10,005 INFO L85 PathProgramCache]: Analyzing trace with hash 241649034, now seen corresponding path program 1 times [2022-02-23 20:19:10,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:10,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653996560] [2022-02-23 20:19:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:10,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:10,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1931 proven. 46 refuted. 0 times theorem prover too weak. 1609 trivial. 0 not checked. [2022-02-23 20:19:10,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:10,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653996560] [2022-02-23 20:19:10,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653996560] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:10,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897442581] [2022-02-23 20:19:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:10,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:10,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:10,284 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:10,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 20:19:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:11,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 2782 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-23 20:19:11,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:19:11,569 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:11,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:19:11,621 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:19:11,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:19:11,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:19:11,867 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:11,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:19:11,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:19:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1926 proven. 126 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2022-02-23 20:19:12,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:19:13,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1947 proven. 0 refuted. 0 times theorem prover too weak. 1639 trivial. 0 not checked. [2022-02-23 20:19:13,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897442581] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:13,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:19:13,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-23 20:19:13,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070357623] [2022-02-23 20:19:13,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:13,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:19:13,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:13,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:19:13,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 20:19:13,163 INFO L87 Difference]: Start difference. First operand 7928 states and 11693 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:14,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:14,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:14,696 INFO L93 Difference]: Finished difference Result 9599 states and 13996 transitions. [2022-02-23 20:19:14,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:19:14,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 624 [2022-02-23 20:19:14,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:14,711 INFO L225 Difference]: With dead ends: 9599 [2022-02-23 20:19:14,712 INFO L226 Difference]: Without dead ends: 9599 [2022-02-23 20:19:14,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1258 GetRequests, 1248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 20:19:14,713 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 105 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:14,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 538 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 20:19:14,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2022-02-23 20:19:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 8600. [2022-02-23 20:19:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8595 states have (on average 1.4706224549156486) internal successors, (12640), 8595 states have internal predecessors, (12640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12644 transitions. [2022-02-23 20:19:14,828 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12644 transitions. Word has length 624 [2022-02-23 20:19:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:14,829 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 12644 transitions. [2022-02-23 20:19:14,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12644 transitions. [2022-02-23 20:19:14,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-02-23 20:19:14,841 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:14,841 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:14,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-23 20:19:15,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:15,067 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:15,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:15,068 INFO L85 PathProgramCache]: Analyzing trace with hash 253724586, now seen corresponding path program 1 times [2022-02-23 20:19:15,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:15,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034635827] [2022-02-23 20:19:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:15,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:15,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3568 backedges. 1701 proven. 0 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2022-02-23 20:19:15,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:15,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034635827] [2022-02-23 20:19:15,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034635827] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:15,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:15,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:15,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726364500] [2022-02-23 20:19:15,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:15,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:15,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:15,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:15,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:15,312 INFO L87 Difference]: Start difference. First operand 8600 states and 12644 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:17,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:17,718 INFO L93 Difference]: Finished difference Result 8806 states and 12877 transitions. [2022-02-23 20:19:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:17,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 627 [2022-02-23 20:19:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:17,731 INFO L225 Difference]: With dead ends: 8806 [2022-02-23 20:19:17,732 INFO L226 Difference]: Without dead ends: 8806 [2022-02-23 20:19:17,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:17,732 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 37 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:17,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 611 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:19:17,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8806 states. [2022-02-23 20:19:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8806 to 8600. [2022-02-23 20:19:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8595 states have (on average 1.4686445607911576) internal successors, (12623), 8595 states have internal predecessors, (12623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:17,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12627 transitions. [2022-02-23 20:19:17,823 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12627 transitions. Word has length 627 [2022-02-23 20:19:17,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:17,824 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 12627 transitions. [2022-02-23 20:19:17,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:17,824 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12627 transitions. [2022-02-23 20:19:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-02-23 20:19:17,874 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:17,875 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:17,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-23 20:19:17,875 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:17,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:17,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1484021239, now seen corresponding path program 1 times [2022-02-23 20:19:17,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:17,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332622164] [2022-02-23 20:19:17,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:17,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 1836 proven. 0 refuted. 0 times theorem prover too weak. 1765 trivial. 0 not checked. [2022-02-23 20:19:18,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:18,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332622164] [2022-02-23 20:19:18,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332622164] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:18,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:18,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:18,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921600334] [2022-02-23 20:19:18,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:18,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:18,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:18,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:18,120 INFO L87 Difference]: Start difference. First operand 8600 states and 12627 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:20,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:20,505 INFO L93 Difference]: Finished difference Result 9282 states and 13601 transitions. [2022-02-23 20:19:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:20,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 627 [2022-02-23 20:19:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:20,517 INFO L225 Difference]: With dead ends: 9282 [2022-02-23 20:19:20,517 INFO L226 Difference]: Without dead ends: 9282 [2022-02-23 20:19:20,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:20,518 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 29 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:20,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 613 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:19:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9282 states. [2022-02-23 20:19:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9282 to 9042. [2022-02-23 20:19:20,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9037 states have (on average 1.4701781564678544) internal successors, (13286), 9037 states have internal predecessors, (13286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:20,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 13290 transitions. [2022-02-23 20:19:20,614 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 13290 transitions. Word has length 627 [2022-02-23 20:19:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:20,614 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 13290 transitions. [2022-02-23 20:19:20,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 13290 transitions. [2022-02-23 20:19:20,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-02-23 20:19:20,626 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:20,627 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:20,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-23 20:19:20,627 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash 269092640, now seen corresponding path program 1 times [2022-02-23 20:19:20,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:20,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837842665] [2022-02-23 20:19:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:20,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:21,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 2111 proven. 95 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2022-02-23 20:19:21,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:21,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837842665] [2022-02-23 20:19:21,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837842665] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:21,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570536139] [2022-02-23 20:19:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:21,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:21,092 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:21,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-23 20:19:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:22,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 2791 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-23 20:19:22,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:19:22,427 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:22,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:19:22,480 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:19:22,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:19:22,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-23 20:19:22,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-23 20:19:22,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-23 20:19:22,637 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-23 20:19:22,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-02-23 20:19:22,700 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-23 20:19:22,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-02-23 20:19:22,796 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:22,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-02-23 20:19:24,899 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:19:24,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:19:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1914 proven. 68 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2022-02-23 20:19:25,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:19:26,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-23 20:19:26,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-23 20:19:27,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2022-02-23 20:19:27,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-02-23 20:19:27,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-02-23 20:19:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1937 proven. 27 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2022-02-23 20:19:27,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570536139] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:19:27,979 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:19:27,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 13 [2022-02-23 20:19:27,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441420759] [2022-02-23 20:19:27,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:19:27,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 20:19:27,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:27,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 20:19:27,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=116, Unknown=1, NotChecked=0, Total=156 [2022-02-23 20:19:27,981 INFO L87 Difference]: Start difference. First operand 9042 states and 13290 transitions. Second operand has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:29,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:31,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:33,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:35,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:36,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:46,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:46,685 INFO L93 Difference]: Finished difference Result 18129 states and 26319 transitions. [2022-02-23 20:19:46,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-23 20:19:46,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-02-23 20:19:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:46,704 INFO L225 Difference]: With dead ends: 18129 [2022-02-23 20:19:46,704 INFO L226 Difference]: Without dead ends: 18129 [2022-02-23 20:19:46,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1296 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=192, Invalid=559, Unknown=5, NotChecked=0, Total=756 [2022-02-23 20:19:46,705 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 791 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 221 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 493 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:46,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 2039 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2167 Invalid, 1 Unknown, 493 Unchecked, 10.5s Time] [2022-02-23 20:19:46,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18129 states. [2022-02-23 20:19:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18129 to 9984. [2022-02-23 20:19:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9984 states, 9979 states have (on average 1.4702876039683335) internal successors, (14672), 9979 states have internal predecessors, (14672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:46,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9984 states to 9984 states and 14676 transitions. [2022-02-23 20:19:46,874 INFO L78 Accepts]: Start accepts. Automaton has 9984 states and 14676 transitions. Word has length 645 [2022-02-23 20:19:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:46,875 INFO L470 AbstractCegarLoop]: Abstraction has 9984 states and 14676 transitions. [2022-02-23 20:19:46,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9984 states and 14676 transitions. [2022-02-23 20:19:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-02-23 20:19:46,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:46,887 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:46,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-23 20:19:47,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:47,094 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:47,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:47,095 INFO L85 PathProgramCache]: Analyzing trace with hash -360571007, now seen corresponding path program 1 times [2022-02-23 20:19:47,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:47,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252693827] [2022-02-23 20:19:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:47,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 745 proven. 2620 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-02-23 20:19:49,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:49,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252693827] [2022-02-23 20:19:49,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252693827] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:49,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723643853] [2022-02-23 20:19:49,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:49,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:49,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:49,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:49,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-23 20:19:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:51,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 100 conjunts are in the unsatisfiable core [2022-02-23 20:19:51,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:19:51,305 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:51,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:19:51,409 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:19:51,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-23 20:19:51,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-23 20:19:51,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:19:51,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-23 20:19:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:51,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-23 20:19:51,994 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-23 20:19:51,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-23 20:19:52,004 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:52,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-23 20:19:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:52,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-23 20:19:52,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:52,566 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-23 20:19:52,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-23 20:19:52,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:52,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:19:52,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:52,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:19:52,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:52,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:19:52,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:52,647 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:19:52,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-23 20:19:53,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:53,367 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-23 20:19:53,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-23 20:19:53,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:53,402 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-23 20:19:53,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-23 20:19:53,453 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-02-23 20:19:53,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-02-23 20:19:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 313 [2022-02-23 20:19:55,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:19:55,095 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-02-23 20:19:55,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 379 treesize of output 392 [2022-02-23 20:19:55,123 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-02-23 20:19:55,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 317 [2022-02-23 20:20:00,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-02-23 20:20:00,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-02-23 20:20:00,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,644 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:20:00,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-02-23 20:20:00,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-02-23 20:20:00,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:20:00,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-02-23 20:20:00,910 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-02-23 20:20:00,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-02-23 20:20:00,997 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:20:00,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-23 20:20:01,122 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:20:01,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:20:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1547 proven. 538 refuted. 0 times theorem prover too weak. 1810 trivial. 0 not checked. [2022-02-23 20:20:01,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:20:08,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:20:08,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:20:08,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:20:08,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 946 treesize of output 844 [2022-02-23 20:20:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1689 proven. 141 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-02-23 20:20:10,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723643853] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:20:10,310 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:20:10,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 14] total 50 [2022-02-23 20:20:10,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530460918] [2022-02-23 20:20:10,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:20:10,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-23 20:20:10,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:10,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-23 20:20:10,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=2104, Unknown=1, NotChecked=0, Total=2450 [2022-02-23 20:20:10,313 INFO L87 Difference]: Start difference. First operand 9984 states and 14676 transitions. Second operand has 50 states, 49 states have (on average 17.122448979591837) internal successors, (839), 48 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:11,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:13,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:14,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:17,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:18,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:20,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:23,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:25,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:55,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:55,991 INFO L93 Difference]: Finished difference Result 61572 states and 89195 transitions. [2022-02-23 20:20:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-02-23 20:20:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 17.122448979591837) internal successors, (839), 48 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-02-23 20:20:55,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:56,060 INFO L225 Difference]: With dead ends: 61572 [2022-02-23 20:20:56,061 INFO L226 Difference]: Without dead ends: 61572 [2022-02-23 20:20:56,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1664 GetRequests, 1418 SyntacticMatches, 10 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20703 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=7107, Invalid=49298, Unknown=1, NotChecked=0, Total=56406 [2022-02-23 20:20:56,071 INFO L933 BasicCegarLoop]: 1027 mSDtfsCounter, 4616 mSDsluCounter, 19478 mSDsCounter, 0 mSdLazyCounter, 19675 mSolverCounterSat, 957 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4616 SdHoareTripleChecker+Valid, 20505 SdHoareTripleChecker+Invalid, 25640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 19675 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 5006 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:56,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4616 Valid, 20505 Invalid, 25640 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [957 Valid, 19675 Invalid, 2 Unknown, 5006 Unchecked, 33.8s Time] [2022-02-23 20:20:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61572 states. [2022-02-23 20:20:56,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61572 to 35708. [2022-02-23 20:20:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35708 states, 35703 states have (on average 1.4765986051592304) internal successors, (52719), 35703 states have internal predecessors, (52719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35708 states to 35708 states and 52723 transitions. [2022-02-23 20:20:56,591 INFO L78 Accepts]: Start accepts. Automaton has 35708 states and 52723 transitions. Word has length 645 [2022-02-23 20:20:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:56,592 INFO L470 AbstractCegarLoop]: Abstraction has 35708 states and 52723 transitions. [2022-02-23 20:20:56,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 17.122448979591837) internal successors, (839), 48 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 35708 states and 52723 transitions. [2022-02-23 20:20:56,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2022-02-23 20:20:56,634 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:56,634 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 9, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:56,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-23 20:20:56,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:20:56,835 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:56,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:56,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1374669471, now seen corresponding path program 1 times [2022-02-23 20:20:56,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:56,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248770012] [2022-02-23 20:20:56,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:56,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3907 backedges. 894 proven. 0 refuted. 0 times theorem prover too weak. 3013 trivial. 0 not checked. [2022-02-23 20:20:57,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:57,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248770012] [2022-02-23 20:20:57,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248770012] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:20:57,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:20:57,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:20:57,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921901091] [2022-02-23 20:20:57,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:57,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:20:57,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:57,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:20:57,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:20:57,265 INFO L87 Difference]: Start difference. First operand 35708 states and 52723 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:59,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:01,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:04,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:21:04,545 INFO L93 Difference]: Finished difference Result 37610 states and 55211 transitions. [2022-02-23 20:21:04,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:21:04,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 647 [2022-02-23 20:21:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:21:04,593 INFO L225 Difference]: With dead ends: 37610 [2022-02-23 20:21:04,593 INFO L226 Difference]: Without dead ends: 37368 [2022-02-23 20:21:04,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:21:04,594 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 104 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:21:04,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 476 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-02-23 20:21:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37368 states. [2022-02-23 20:21:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37368 to 33427. [2022-02-23 20:21:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33427 states, 33422 states have (on average 1.4770809646340735) internal successors, (49367), 33422 states have internal predecessors, (49367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:21:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33427 states to 33427 states and 49371 transitions. [2022-02-23 20:21:05,029 INFO L78 Accepts]: Start accepts. Automaton has 33427 states and 49371 transitions. Word has length 647 [2022-02-23 20:21:05,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:21:05,029 INFO L470 AbstractCegarLoop]: Abstraction has 33427 states and 49371 transitions. [2022-02-23 20:21:05,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:21:05,029 INFO L276 IsEmpty]: Start isEmpty. Operand 33427 states and 49371 transitions. [2022-02-23 20:21:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2022-02-23 20:21:05,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:21:05,063 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:21:05,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-23 20:21:05,063 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:21:05,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:21:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash -878999477, now seen corresponding path program 1 times [2022-02-23 20:21:05,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:21:05,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706093781] [2022-02-23 20:21:05,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:21:05,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:21:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:21:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:21:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:21:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 606 proven. 3210 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-02-23 20:21:08,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:21:08,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706093781] [2022-02-23 20:21:08,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706093781] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:21:08,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726421734] [2022-02-23 20:21:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:21:08,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:21:08,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:21:08,227 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:21:08,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-23 20:21:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:21:09,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 105 conjunts are in the unsatisfiable core [2022-02-23 20:21:09,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:21:09,722 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:21:09,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:21:09,779 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-02-23 20:21:09,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 22 [2022-02-23 20:21:09,886 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:21:09,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-23 20:21:09,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-23 20:21:10,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:21:10,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:10,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-23 20:21:10,508 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-23 20:21:10,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-23 20:21:10,516 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:21:10,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-02-23 20:21:11,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-23 20:21:11,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,136 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-23 20:21:11,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-23 20:21:11,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:21:11,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:21:11,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:21:11,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,232 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:21:11,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-23 20:21:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,916 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-23 20:21:11,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-23 20:21:11,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:11,962 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-23 20:21:11,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-23 20:21:12,008 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-23 20:21:12,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-23 20:21:26,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 180 [2022-02-23 20:21:26,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 180 [2022-02-23 20:21:26,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:26,617 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-02-23 20:21:26,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 208 [2022-02-23 20:21:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 287 [2022-02-23 20:21:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 269 [2022-02-23 20:21:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,106 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:21:35,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 351 treesize of output 339 [2022-02-23 20:21:35,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-02-23 20:21:35,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:35,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-02-23 20:21:35,695 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-02-23 20:21:35,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-02-23 20:21:35,834 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:21:35,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-23 20:21:35,965 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:21:35,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:21:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1553 proven. 540 refuted. 0 times theorem prover too weak. 1810 trivial. 0 not checked. [2022-02-23 20:21:36,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:21:39,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:21:39,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:21:39,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-02-23 20:21:39,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:21:39,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:21:39,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:21:39,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:21:39,706 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-02-23 20:21:39,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 1 [2022-02-23 20:21:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1661 proven. 177 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-02-23 20:21:40,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726421734] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:21:40,131 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:21:40,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 20, 13] total 58 [2022-02-23 20:21:40,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746936854] [2022-02-23 20:21:40,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:21:40,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-23 20:21:40,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:21:40,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-23 20:21:40,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2022-02-23 20:21:40,133 INFO L87 Difference]: Start difference. First operand 33427 states and 49371 transitions. Second operand has 58 states, 58 states have (on average 15.655172413793103) internal successors, (908), 57 states have internal predecessors, (908), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:21:41,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:43,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:46,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:48,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:50,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:52,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:54,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:56,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:58,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:22:00,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:22:02,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:22:04,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:22:06,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:22:08,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:22:09,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:22:11,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []