/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:48:03,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:48:03,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:48:03,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:48:03,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:48:03,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:48:03,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:48:03,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:48:03,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:48:03,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:48:03,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:48:03,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:48:03,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:48:03,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:48:03,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:48:03,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:48:03,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:48:03,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:48:03,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:48:03,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:48:03,974 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:48:03,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:48:03,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:48:03,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:48:03,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:48:03,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:48:03,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:48:03,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:48:03,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:48:03,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:48:03,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:48:03,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:48:03,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:48:03,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:48:03,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:48:03,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:48:03,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:48:03,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:48:03,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:48:03,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:48:03,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:48:03,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:48:03,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:48:03,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:48:03,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:48:04,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:48:04,001 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:48:04,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:48:04,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:48:04,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:48:04,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:48:04,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:48:04,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:48:04,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:48:04,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:48:04,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:48:04,003 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:48:04,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:48:04,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:48:04,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:48:04,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:48:04,217 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:48:04,218 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:48:04,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-17 18:48:04,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1847118f/6294e1027dc245ccaf4a9095cf531573/FLAG88305a195 [2022-03-17 18:48:04,711 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:48:04,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-17 18:48:04,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1847118f/6294e1027dc245ccaf4a9095cf531573/FLAG88305a195 [2022-03-17 18:48:05,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1847118f/6294e1027dc245ccaf4a9095cf531573 [2022-03-17 18:48:05,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:48:05,246 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:48:05,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:48:05,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:48:05,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:48:05,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd7a4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05, skipping insertion in model container [2022-03-17 18:48:05,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:48:05,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:48:05,541 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.01.i.cil-1.c[72918,72931] [2022-03-17 18:48:05,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:48:05,555 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:48:05,610 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.01.i.cil-1.c[72918,72931] [2022-03-17 18:48:05,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:48:05,624 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:48:05,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05 WrapperNode [2022-03-17 18:48:05,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:48:05,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:48:05,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:48:05,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:48:05,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:48:05,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:48:05,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:48:05,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:48:05,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (1/1) ... [2022-03-17 18:48:05,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:48:05,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:48:05,717 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) [2022-03-17 18:48:05,730 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 [2022-03-17 18:48:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:48:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:48:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:48:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:48:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:48:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:48:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:48:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:48:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:48:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:48:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:48:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:48:05,856 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:48:05,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:48:08,074 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:48:08,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 18:48:08,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 18:48:08,438 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:48:08,444 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:48:08,444 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:48:08,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:48:08 BoogieIcfgContainer [2022-03-17 18:48:08,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:48:08,446 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:48:08,446 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:48:08,447 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:48:08,449 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:48:08" (1/1) ... [2022-03-17 18:48:08,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:48:08 BasicIcfg [2022-03-17 18:48:08,494 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:48:08,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:48:08,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:48:08,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:48:08,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:48:05" (1/4) ... [2022-03-17 18:48:08,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c6ec76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:48:08, skipping insertion in model container [2022-03-17 18:48:08,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:48:05" (2/4) ... [2022-03-17 18:48:08,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c6ec76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:48:08, skipping insertion in model container [2022-03-17 18:48:08,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:48:08" (3/4) ... [2022-03-17 18:48:08,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c6ec76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:48:08, skipping insertion in model container [2022-03-17 18:48:08,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:48:08" (4/4) ... [2022-03-17 18:48:08,499 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.cJordan [2022-03-17 18:48:08,505 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:48:08,505 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:48:08,546 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:48:08,551 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 18:48:08,552 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:48:08,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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) [2022-03-17 18:48:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-17 18:48:08,587 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:08,588 INFO L500 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, 1, 1] [2022-03-17 18:48:08,588 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:08,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:08,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1394707426, now seen corresponding path program 1 times [2022-03-17 18:48:08,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:08,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710324744] [2022-03-17 18:48:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:08,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:09,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:09,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710324744] [2022-03-17 18:48:09,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710324744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:09,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:09,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:09,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611260322] [2022-03-17 18:48:09,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:09,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:09,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:09,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:09,070 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:11,109 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 [] [2022-03-17 18:48:11,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:11,749 INFO L93 Difference]: Finished difference Result 281 states and 462 transitions. [2022-03-17 18:48:11,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:11,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-03-17 18:48:11,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:11,758 INFO L225 Difference]: With dead ends: 281 [2022-03-17 18:48:11,758 INFO L226 Difference]: Without dead ends: 255 [2022-03-17 18:48:11,759 INFO L911 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 [2022-03-17 18:48:11,761 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:11,761 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 439 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 18:48:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-17 18:48:11,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 182. [2022-03-17 18:48:11,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.6045197740112995) internal successors, (284), 177 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:11,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-03-17 18:48:11,798 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 53 [2022-03-17 18:48:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:11,799 INFO L478 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-03-17 18:48:11,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-03-17 18:48:11,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-17 18:48:11,800 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:11,800 INFO L500 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, 1, 1, 1] [2022-03-17 18:48:11,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:48:11,801 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:11,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash 315625172, now seen corresponding path program 1 times [2022-03-17 18:48:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:11,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953239728] [2022-03-17 18:48:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:11,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:11,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:11,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953239728] [2022-03-17 18:48:11,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953239728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:11,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:11,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:11,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914932103] [2022-03-17 18:48:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:11,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:11,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:11,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:11,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:11,984 INFO L87 Difference]: Start difference. First operand 182 states and 288 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:13,993 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 [] [2022-03-17 18:48:14,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:14,383 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-03-17 18:48:14,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:14,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-03-17 18:48:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:14,385 INFO L225 Difference]: With dead ends: 210 [2022-03-17 18:48:14,385 INFO L226 Difference]: Without dead ends: 210 [2022-03-17 18:48:14,385 INFO L911 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 [2022-03-17 18:48:14,386 INFO L912 BasicCegarLoop]: 179 mSDtfsCounter, 22 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:14,386 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 460 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-17 18:48:14,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-17 18:48:14,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 188 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-03-17 18:48:14,395 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 54 [2022-03-17 18:48:14,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:14,395 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-03-17 18:48:14,400 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-03-17 18:48:14,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:48:14,406 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:14,406 INFO L500 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, 1, 1, 1] [2022-03-17 18:48:14,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:48:14,407 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:14,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:14,407 INFO L85 PathProgramCache]: Analyzing trace with hash -254321634, now seen corresponding path program 1 times [2022-03-17 18:48:14,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:14,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261192392] [2022-03-17 18:48:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:14,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:14,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:14,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261192392] [2022-03-17 18:48:14,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261192392] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:14,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:14,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:14,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73139345] [2022-03-17 18:48:14,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:14,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:14,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:14,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:14,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:14,535 INFO L87 Difference]: Start difference. First operand 193 states and 307 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) [2022-03-17 18:48:16,056 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 [] [2022-03-17 18:48:17,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:19,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:21,857 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 [] [2022-03-17 18:48:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:22,200 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-03-17 18:48:22,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:22,201 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 [2022-03-17 18:48:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:22,202 INFO L225 Difference]: With dead ends: 210 [2022-03-17 18:48:22,202 INFO L226 Difference]: Without dead ends: 210 [2022-03-17 18:48:22,202 INFO L911 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 [2022-03-17 18:48:22,203 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:22,203 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 18:48:22,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-17 18:48:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-17 18:48:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6063829787234043) internal successors, (302), 188 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-03-17 18:48:22,211 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 67 [2022-03-17 18:48:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:22,211 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-03-17 18:48:22,211 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-03-17 18:48:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 18:48:22,212 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:22,212 INFO L500 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, 1, 1, 1] [2022-03-17 18:48:22,212 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:48:22,212 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:22,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:22,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1913510738, now seen corresponding path program 1 times [2022-03-17 18:48:22,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:22,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507270901] [2022-03-17 18:48:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:22,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:22,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:22,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:22,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507270901] [2022-03-17 18:48:22,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507270901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:22,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:22,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838608044] [2022-03-17 18:48:22,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:22,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:22,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:22,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:22,311 INFO L87 Difference]: Start difference. First operand 193 states and 306 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) [2022-03-17 18:48:24,324 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 [] [2022-03-17 18:48:24,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:24,671 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-03-17 18:48:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:24,672 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 [2022-03-17 18:48:24,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:24,673 INFO L225 Difference]: With dead ends: 208 [2022-03-17 18:48:24,673 INFO L226 Difference]: Without dead ends: 208 [2022-03-17 18:48:24,673 INFO L911 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 [2022-03-17 18:48:24,674 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:24,674 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-03-17 18:48:24,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2022-03-17 18:48:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.601063829787234) internal successors, (301), 188 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-03-17 18:48:24,680 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 68 [2022-03-17 18:48:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:24,680 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-03-17 18:48:24,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-03-17 18:48:24,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 18:48:24,681 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:24,681 INFO L500 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, 1, 1, 1] [2022-03-17 18:48:24,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:48:24,681 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:24,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:24,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1376108913, now seen corresponding path program 1 times [2022-03-17 18:48:24,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:24,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153619208] [2022-03-17 18:48:24,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:24,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:24,766 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:24,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:24,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153619208] [2022-03-17 18:48:24,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153619208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:24,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:24,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:24,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440375592] [2022-03-17 18:48:24,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:24,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:24,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:24,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:24,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:24,768 INFO L87 Difference]: Start difference. First operand 193 states and 305 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) [2022-03-17 18:48:26,775 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 [] [2022-03-17 18:48:27,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:27,092 INFO L93 Difference]: Finished difference Result 207 states and 322 transitions. [2022-03-17 18:48:27,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:27,093 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 [2022-03-17 18:48:27,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:27,093 INFO L225 Difference]: With dead ends: 207 [2022-03-17 18:48:27,093 INFO L226 Difference]: Without dead ends: 207 [2022-03-17 18:48:27,094 INFO L911 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 [2022-03-17 18:48:27,094 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:27,094 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-17 18:48:27,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2022-03-17 18:48:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5957446808510638) internal successors, (300), 188 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2022-03-17 18:48:27,100 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 68 [2022-03-17 18:48:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:27,100 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2022-03-17 18:48:27,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2022-03-17 18:48:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:48:27,101 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:27,101 INFO L500 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, 1, 1, 1, 1] [2022-03-17 18:48:27,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:48:27,101 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:27,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595334, now seen corresponding path program 1 times [2022-03-17 18:48:27,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:27,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054169093] [2022-03-17 18:48:27,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:27,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:27,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:27,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054169093] [2022-03-17 18:48:27,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054169093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:27,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:27,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122308468] [2022-03-17 18:48:27,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:27,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:27,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:27,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:27,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:27,247 INFO L87 Difference]: Start difference. First operand 193 states and 304 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) [2022-03-17 18:48:29,255 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 [] [2022-03-17 18:48:29,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:29,591 INFO L93 Difference]: Finished difference Result 206 states and 320 transitions. [2022-03-17 18:48:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:29,591 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 [2022-03-17 18:48:29,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:29,592 INFO L225 Difference]: With dead ends: 206 [2022-03-17 18:48:29,592 INFO L226 Difference]: Without dead ends: 206 [2022-03-17 18:48:29,592 INFO L911 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 [2022-03-17 18:48:29,594 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:29,594 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-17 18:48:29,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-03-17 18:48:29,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5904255319148937) internal successors, (299), 188 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 303 transitions. [2022-03-17 18:48:29,599 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 303 transitions. Word has length 69 [2022-03-17 18:48:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:29,599 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 303 transitions. [2022-03-17 18:48:29,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 303 transitions. [2022-03-17 18:48:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:48:29,600 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:29,600 INFO L500 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, 1, 1, 1, 1] [2022-03-17 18:48:29,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:48:29,600 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:29,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:29,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1597008666, now seen corresponding path program 1 times [2022-03-17 18:48:29,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:29,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743542980] [2022-03-17 18:48:29,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:29,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:29,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:29,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:29,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743542980] [2022-03-17 18:48:29,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743542980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:29,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:29,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:29,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414447824] [2022-03-17 18:48:29,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:29,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:29,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:29,699 INFO L87 Difference]: Start difference. First operand 193 states and 303 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) [2022-03-17 18:48:31,707 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 [] [2022-03-17 18:48:32,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:32,157 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-03-17 18:48:32,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:32,157 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 [2022-03-17 18:48:32,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:32,159 INFO L225 Difference]: With dead ends: 309 [2022-03-17 18:48:32,159 INFO L226 Difference]: Without dead ends: 309 [2022-03-17 18:48:32,159 INFO L911 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 [2022-03-17 18:48:32,159 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 144 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:32,160 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-17 18:48:32,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 205. [2022-03-17 18:48:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.575) internal successors, (315), 200 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 319 transitions. [2022-03-17 18:48:32,164 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 319 transitions. Word has length 69 [2022-03-17 18:48:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:32,164 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 319 transitions. [2022-03-17 18:48:32,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:32,165 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 319 transitions. [2022-03-17 18:48:32,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-17 18:48:32,165 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:32,165 INFO L500 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, 1, 1, 1, 1] [2022-03-17 18:48:32,165 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:48:32,165 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:32,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:32,166 INFO L85 PathProgramCache]: Analyzing trace with hash 511071466, now seen corresponding path program 1 times [2022-03-17 18:48:32,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:32,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551184742] [2022-03-17 18:48:32,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:32,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:32,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:32,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551184742] [2022-03-17 18:48:32,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551184742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:32,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:32,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:32,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133602852] [2022-03-17 18:48:32,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:32,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:32,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:32,255 INFO L87 Difference]: Start difference. First operand 205 states and 319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:34,262 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 [] [2022-03-17 18:48:34,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:34,700 INFO L93 Difference]: Finished difference Result 309 states and 476 transitions. [2022-03-17 18:48:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:34,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-17 18:48:34,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:34,702 INFO L225 Difference]: With dead ends: 309 [2022-03-17 18:48:34,702 INFO L226 Difference]: Without dead ends: 309 [2022-03-17 18:48:34,702 INFO L911 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 [2022-03-17 18:48:34,703 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 142 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:34,703 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:34,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-17 18:48:34,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 206. [2022-03-17 18:48:34,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5621890547263682) internal successors, (314), 201 states have internal predecessors, (314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:34,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 318 transitions. [2022-03-17 18:48:34,707 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 318 transitions. Word has length 70 [2022-03-17 18:48:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:34,707 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 318 transitions. [2022-03-17 18:48:34,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:34,708 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 318 transitions. [2022-03-17 18:48:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 18:48:34,708 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:34,708 INFO L500 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, 1, 1, 1, 1] [2022-03-17 18:48:34,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:48:34,708 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:34,709 INFO L85 PathProgramCache]: Analyzing trace with hash -11530602, now seen corresponding path program 1 times [2022-03-17 18:48:34,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:34,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009074060] [2022-03-17 18:48:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:34,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:34,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:34,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009074060] [2022-03-17 18:48:34,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009074060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:34,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:34,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:34,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211703180] [2022-03-17 18:48:34,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:34,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:34,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:34,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:34,797 INFO L87 Difference]: Start difference. First operand 206 states and 318 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:36,805 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 [] [2022-03-17 18:48:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:37,107 INFO L93 Difference]: Finished difference Result 219 states and 334 transitions. [2022-03-17 18:48:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:37,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-03-17 18:48:37,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:37,108 INFO L225 Difference]: With dead ends: 219 [2022-03-17 18:48:37,108 INFO L226 Difference]: Without dead ends: 219 [2022-03-17 18:48:37,109 INFO L911 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 [2022-03-17 18:48:37,109 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:37,109 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:37,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-17 18:48:37,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 206. [2022-03-17 18:48:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5572139303482586) internal successors, (313), 201 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2022-03-17 18:48:37,113 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 71 [2022-03-17 18:48:37,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:37,113 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2022-03-17 18:48:37,113 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:37,114 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2022-03-17 18:48:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 18:48:37,114 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:37,114 INFO L500 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, 1, 1] [2022-03-17 18:48:37,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:48:37,114 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:37,115 INFO L85 PathProgramCache]: Analyzing trace with hash -618559600, now seen corresponding path program 1 times [2022-03-17 18:48:37,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:37,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765020301] [2022-03-17 18:48:37,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:37,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:37,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:37,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765020301] [2022-03-17 18:48:37,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765020301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:37,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:37,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:37,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254836912] [2022-03-17 18:48:37,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:37,209 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:37,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:37,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:37,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:37,209 INFO L87 Difference]: Start difference. First operand 206 states and 317 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:39,217 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 [] [2022-03-17 18:48:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:39,586 INFO L93 Difference]: Finished difference Result 249 states and 380 transitions. [2022-03-17 18:48:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:39,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-03-17 18:48:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:39,587 INFO L225 Difference]: With dead ends: 249 [2022-03-17 18:48:39,587 INFO L226 Difference]: Without dead ends: 249 [2022-03-17 18:48:39,587 INFO L911 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 [2022-03-17 18:48:39,588 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:39,588 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:39,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-03-17 18:48:39,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 228. [2022-03-17 18:48:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5650224215246638) internal successors, (349), 223 states have internal predecessors, (349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:39,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions. [2022-03-17 18:48:39,592 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 71 [2022-03-17 18:48:39,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:39,592 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 353 transitions. [2022-03-17 18:48:39,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:39,592 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions. [2022-03-17 18:48:39,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-03-17 18:48:39,593 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:39,593 INFO L500 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, 1, 1, 1, 1] [2022-03-17 18:48:39,593 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:48:39,593 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:39,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:39,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1019782777, now seen corresponding path program 1 times [2022-03-17 18:48:39,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:39,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494894125] [2022-03-17 18:48:39,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:39,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:39,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:39,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:39,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494894125] [2022-03-17 18:48:39,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494894125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:39,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:39,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:39,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931353155] [2022-03-17 18:48:39,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:39,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:39,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:39,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:39,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:39,685 INFO L87 Difference]: Start difference. First operand 228 states and 353 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:41,693 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 [] [2022-03-17 18:48:42,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:42,101 INFO L93 Difference]: Finished difference Result 331 states and 507 transitions. [2022-03-17 18:48:42,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:42,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2022-03-17 18:48:42,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:42,103 INFO L225 Difference]: With dead ends: 331 [2022-03-17 18:48:42,103 INFO L226 Difference]: Without dead ends: 331 [2022-03-17 18:48:42,103 INFO L911 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 [2022-03-17 18:48:42,103 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 139 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:42,103 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-03-17 18:48:42,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 230. [2022-03-17 18:48:42,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.551111111111111) internal successors, (349), 225 states have internal predecessors, (349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:42,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 353 transitions. [2022-03-17 18:48:42,107 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 353 transitions. Word has length 72 [2022-03-17 18:48:42,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:42,108 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 353 transitions. [2022-03-17 18:48:42,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:42,108 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 353 transitions. [2022-03-17 18:48:42,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 18:48:42,108 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:42,108 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:42,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:48:42,109 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:42,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:42,109 INFO L85 PathProgramCache]: Analyzing trace with hash -913771294, now seen corresponding path program 1 times [2022-03-17 18:48:42,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:42,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024516983] [2022-03-17 18:48:42,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:42,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:42,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:42,187 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:42,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:42,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024516983] [2022-03-17 18:48:42,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024516983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:42,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:42,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:42,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726196206] [2022-03-17 18:48:42,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:42,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:42,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:42,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:42,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:42,189 INFO L87 Difference]: Start difference. First operand 230 states and 353 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) [2022-03-17 18:48:44,203 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 [] [2022-03-17 18:48:44,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:44,637 INFO L93 Difference]: Finished difference Result 374 states and 581 transitions. [2022-03-17 18:48:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:44,638 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 84 [2022-03-17 18:48:44,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:44,639 INFO L225 Difference]: With dead ends: 374 [2022-03-17 18:48:44,639 INFO L226 Difference]: Without dead ends: 374 [2022-03-17 18:48:44,639 INFO L911 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 [2022-03-17 18:48:44,640 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 138 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:44,640 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 323 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-17 18:48:44,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 247. [2022-03-17 18:48:44,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.537190082644628) internal successors, (372), 242 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:44,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 376 transitions. [2022-03-17 18:48:44,647 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 376 transitions. Word has length 84 [2022-03-17 18:48:44,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:44,648 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 376 transitions. [2022-03-17 18:48:44,648 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 376 transitions. [2022-03-17 18:48:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 18:48:44,649 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:44,649 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:44,649 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:48:44,649 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:44,649 INFO L85 PathProgramCache]: Analyzing trace with hash -881613718, now seen corresponding path program 1 times [2022-03-17 18:48:44,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:44,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23135081] [2022-03-17 18:48:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:44,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:44,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:44,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:44,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23135081] [2022-03-17 18:48:44,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23135081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:44,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:44,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:44,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018090245] [2022-03-17 18:48:44,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:44,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:44,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:44,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:44,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:44,730 INFO L87 Difference]: Start difference. First operand 247 states and 376 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) [2022-03-17 18:48:45,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:47,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:49,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:51,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:52,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:52,395 INFO L93 Difference]: Finished difference Result 347 states and 525 transitions. [2022-03-17 18:48:52,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:52,395 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 85 [2022-03-17 18:48:52,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:52,397 INFO L225 Difference]: With dead ends: 347 [2022-03-17 18:48:52,397 INFO L226 Difference]: Without dead ends: 347 [2022-03-17 18:48:52,397 INFO L911 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 [2022-03-17 18:48:52,397 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:52,397 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 18:48:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-03-17 18:48:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 248. [2022-03-17 18:48:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5267489711934157) internal successors, (371), 243 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) [2022-03-17 18:48:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 375 transitions. [2022-03-17 18:48:52,402 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 375 transitions. Word has length 85 [2022-03-17 18:48:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:52,402 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 375 transitions. [2022-03-17 18:48:52,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 375 transitions. [2022-03-17 18:48:52,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 18:48:52,402 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:52,402 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:52,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:48:52,403 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:52,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:52,403 INFO L85 PathProgramCache]: Analyzing trace with hash -344211893, now seen corresponding path program 1 times [2022-03-17 18:48:52,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:52,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749942223] [2022-03-17 18:48:52,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:52,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:52,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:48:52,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:52,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749942223] [2022-03-17 18:48:52,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749942223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:52,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:52,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:52,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825953549] [2022-03-17 18:48:52,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:52,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:52,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:52,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:52,485 INFO L87 Difference]: Start difference. First operand 248 states and 375 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) [2022-03-17 18:48:54,495 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 [] [2022-03-17 18:48:54,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:54,850 INFO L93 Difference]: Finished difference Result 266 states and 398 transitions. [2022-03-17 18:48:54,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:54,850 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 85 [2022-03-17 18:48:54,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:54,851 INFO L225 Difference]: With dead ends: 266 [2022-03-17 18:48:54,851 INFO L226 Difference]: Without dead ends: 266 [2022-03-17 18:48:54,851 INFO L911 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 [2022-03-17 18:48:54,852 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:54,852 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:54,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-17 18:48:54,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 248. [2022-03-17 18:48:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.522633744855967) internal successors, (370), 243 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 374 transitions. [2022-03-17 18:48:54,856 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 374 transitions. Word has length 85 [2022-03-17 18:48:54,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:54,856 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 374 transitions. [2022-03-17 18:48:54,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 374 transitions. [2022-03-17 18:48:54,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-17 18:48:54,857 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:54,857 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:54,857 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:48:54,857 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:54,857 INFO L85 PathProgramCache]: Analyzing trace with hash 382441214, now seen corresponding path program 1 times [2022-03-17 18:48:54,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:54,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871270166] [2022-03-17 18:48:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:54,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:54,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:48:54,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:54,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871270166] [2022-03-17 18:48:54,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871270166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:54,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:54,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:54,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003096984] [2022-03-17 18:48:54,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:54,951 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:54,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:54,952 INFO L87 Difference]: Start difference. First operand 248 states and 374 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) [2022-03-17 18:48:55,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:57,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:00,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:02,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:02,474 INFO L93 Difference]: Finished difference Result 261 states and 389 transitions. [2022-03-17 18:49:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:02,474 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 86 [2022-03-17 18:49:02,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:02,475 INFO L225 Difference]: With dead ends: 261 [2022-03-17 18:49:02,475 INFO L226 Difference]: Without dead ends: 261 [2022-03-17 18:49:02,477 INFO L911 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 [2022-03-17 18:49:02,478 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 19 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:02,478 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 547 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 18:49:02,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-17 18:49:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 248. [2022-03-17 18:49:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5185185185185186) internal successors, (369), 243 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 373 transitions. [2022-03-17 18:49:02,482 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 373 transitions. Word has length 86 [2022-03-17 18:49:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:02,482 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 373 transitions. [2022-03-17 18:49:02,482 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 373 transitions. [2022-03-17 18:49:02,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 18:49:02,482 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:02,483 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:02,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:49:02,483 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:02,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1995759549, now seen corresponding path program 1 times [2022-03-17 18:49:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:02,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861035205] [2022-03-17 18:49:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:02,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-17 18:49:02,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:02,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861035205] [2022-03-17 18:49:02,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861035205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:02,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:02,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:49:02,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158648065] [2022-03-17 18:49:02,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:02,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:49:02,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:49:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:49:02,602 INFO L87 Difference]: Start difference. First operand 248 states and 373 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-03-17 18:49:04,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:04,956 INFO L93 Difference]: Finished difference Result 257 states and 384 transitions. [2022-03-17 18:49:04,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:49:04,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 87 [2022-03-17 18:49:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:04,957 INFO L225 Difference]: With dead ends: 257 [2022-03-17 18:49:04,957 INFO L226 Difference]: Without dead ends: 257 [2022-03-17 18:49:04,957 INFO L911 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 [2022-03-17 18:49:04,958 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:04,958 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:49:04,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-17 18:49:04,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-03-17 18:49:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.507936507936508) internal successors, (380), 252 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 384 transitions. [2022-03-17 18:49:04,962 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 384 transitions. Word has length 87 [2022-03-17 18:49:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:04,962 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 384 transitions. [2022-03-17 18:49:04,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-03-17 18:49:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 384 transitions. [2022-03-17 18:49:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-17 18:49:04,962 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:04,962 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:04,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:49:04,963 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:04,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:04,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1310252391, now seen corresponding path program 1 times [2022-03-17 18:49:04,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:04,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784879535] [2022-03-17 18:49:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:04,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:49:05,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:05,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784879535] [2022-03-17 18:49:05,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784879535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:05,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:05,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:05,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908407224] [2022-03-17 18:49:05,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:05,048 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:05,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:05,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:05,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:05,048 INFO L87 Difference]: Start difference. First operand 257 states and 384 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:06,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:08,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:10,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:12,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:12,693 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2022-03-17 18:49:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:12,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-17 18:49:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:12,694 INFO L225 Difference]: With dead ends: 274 [2022-03-17 18:49:12,694 INFO L226 Difference]: Without dead ends: 274 [2022-03-17 18:49:12,694 INFO L911 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 [2022-03-17 18:49:12,695 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:12,695 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 490 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 18:49:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-17 18:49:12,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2022-03-17 18:49:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.503968253968254) internal successors, (379), 252 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 383 transitions. [2022-03-17 18:49:12,699 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 383 transitions. Word has length 89 [2022-03-17 18:49:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:12,700 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 383 transitions. [2022-03-17 18:49:12,700 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 383 transitions. [2022-03-17 18:49:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-17 18:49:12,700 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:12,700 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:12,700 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:49:12,700 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash 500536592, now seen corresponding path program 1 times [2022-03-17 18:49:12,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:12,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467081486] [2022-03-17 18:49:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:12,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:49:12,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:12,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467081486] [2022-03-17 18:49:12,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467081486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:12,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:12,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171273173] [2022-03-17 18:49:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:12,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:12,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:12,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:12,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:12,793 INFO L87 Difference]: Start difference. First operand 257 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:14,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:16,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:18,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:20,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:20,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:20,957 INFO L93 Difference]: Finished difference Result 365 states and 543 transitions. [2022-03-17 18:49:20,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:20,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-17 18:49:20,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:20,958 INFO L225 Difference]: With dead ends: 365 [2022-03-17 18:49:20,958 INFO L226 Difference]: Without dead ends: 363 [2022-03-17 18:49:20,958 INFO L911 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 [2022-03-17 18:49:20,959 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 110 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:20,959 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 337 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-17 18:49:20,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-03-17 18:49:20,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 282. [2022-03-17 18:49:20,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5451263537906137) internal successors, (428), 277 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2022-03-17 18:49:20,963 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 93 [2022-03-17 18:49:20,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:20,963 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2022-03-17 18:49:20,963 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:20,963 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2022-03-17 18:49:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 18:49:20,964 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:20,964 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:20,964 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:49:20,964 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:20,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:20,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2143278373, now seen corresponding path program 1 times [2022-03-17 18:49:20,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:20,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207374] [2022-03-17 18:49:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:20,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:49:21,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:21,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207374] [2022-03-17 18:49:21,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:21,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:21,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:21,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347123701] [2022-03-17 18:49:21,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:21,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:21,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:21,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:21,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:21,062 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:23,070 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 [] [2022-03-17 18:49:23,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:23,481 INFO L93 Difference]: Finished difference Result 383 states and 581 transitions. [2022-03-17 18:49:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:23,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 18:49:23,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:23,483 INFO L225 Difference]: With dead ends: 383 [2022-03-17 18:49:23,483 INFO L226 Difference]: Without dead ends: 383 [2022-03-17 18:49:23,483 INFO L911 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 [2022-03-17 18:49:23,484 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 82 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:23,484 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 482 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:49:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-17 18:49:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 316. [2022-03-17 18:49:23,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 311 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 487 transitions. [2022-03-17 18:49:23,491 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 487 transitions. Word has length 122 [2022-03-17 18:49:23,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:23,491 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 487 transitions. [2022-03-17 18:49:23,491 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 487 transitions. [2022-03-17 18:49:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 18:49:23,492 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:23,492 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:23,492 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:49:23,492 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:23,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1708077500, now seen corresponding path program 1 times [2022-03-17 18:49:23,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:23,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079143573] [2022-03-17 18:49:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:23,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:49:23,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:23,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079143573] [2022-03-17 18:49:23,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079143573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:23,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:23,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:23,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53298414] [2022-03-17 18:49:23,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:23,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:23,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:23,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:23,594 INFO L87 Difference]: Start difference. First operand 316 states and 487 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:25,602 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 [] [2022-03-17 18:49:26,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:26,038 INFO L93 Difference]: Finished difference Result 435 states and 661 transitions. [2022-03-17 18:49:26,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:26,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 18:49:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:26,039 INFO L225 Difference]: With dead ends: 435 [2022-03-17 18:49:26,039 INFO L226 Difference]: Without dead ends: 435 [2022-03-17 18:49:26,040 INFO L911 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 [2022-03-17 18:49:26,040 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:26,040 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 353 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:49:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-17 18:49:26,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 314. [2022-03-17 18:49:26,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 309 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:26,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 484 transitions. [2022-03-17 18:49:26,045 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 484 transitions. Word has length 122 [2022-03-17 18:49:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:26,045 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 484 transitions. [2022-03-17 18:49:26,045 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 484 transitions. [2022-03-17 18:49:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-17 18:49:26,046 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:26,046 INFO L500 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, 1, 1, 1, 1] [2022-03-17 18:49:26,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:49:26,046 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:26,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:26,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1257864063, now seen corresponding path program 1 times [2022-03-17 18:49:26,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:26,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233153016] [2022-03-17 18:49:26,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:26,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:26,134 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 18:49:26,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:26,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233153016] [2022-03-17 18:49:26,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233153016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:26,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:26,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:26,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159582042] [2022-03-17 18:49:26,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:26,136 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:26,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:26,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:26,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:26,136 INFO L87 Difference]: Start difference. First operand 314 states and 484 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:28,143 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 [] [2022-03-17 18:49:28,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:28,551 INFO L93 Difference]: Finished difference Result 385 states and 575 transitions. [2022-03-17 18:49:28,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:28,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-03-17 18:49:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:28,552 INFO L225 Difference]: With dead ends: 385 [2022-03-17 18:49:28,552 INFO L226 Difference]: Without dead ends: 385 [2022-03-17 18:49:28,553 INFO L911 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 [2022-03-17 18:49:28,553 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 140 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:28,553 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:49:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-03-17 18:49:28,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 314. [2022-03-17 18:49:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5372168284789645) internal successors, (475), 309 states have internal predecessors, (475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 479 transitions. [2022-03-17 18:49:28,557 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 479 transitions. Word has length 128 [2022-03-17 18:49:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:28,558 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 479 transitions. [2022-03-17 18:49:28,558 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 479 transitions. [2022-03-17 18:49:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 18:49:28,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:28,559 INFO L500 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:28,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:49:28,559 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash -365757816, now seen corresponding path program 1 times [2022-03-17 18:49:28,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:28,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027239251] [2022-03-17 18:49:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:28,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:28,667 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:49:28,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:28,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027239251] [2022-03-17 18:49:28,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027239251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:28,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:28,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:49:28,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375179305] [2022-03-17 18:49:28,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:28,667 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:28,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:28,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:28,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:49:28,670 INFO L87 Difference]: Start difference. First operand 314 states and 479 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:30,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:32,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:34,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:34,869 INFO L93 Difference]: Finished difference Result 597 states and 917 transitions. [2022-03-17 18:49:34,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:34,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 18:49:34,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:34,871 INFO L225 Difference]: With dead ends: 597 [2022-03-17 18:49:34,871 INFO L226 Difference]: Without dead ends: 597 [2022-03-17 18:49:34,871 INFO L911 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 [2022-03-17 18:49:34,872 INFO L912 BasicCegarLoop]: 370 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:34,872 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 565 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:49:34,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-17 18:49:34,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-03-17 18:49:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 592 states have (on average 1.5422297297297298) internal successors, (913), 592 states have internal predecessors, (913), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 917 transitions. [2022-03-17 18:49:34,879 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 917 transitions. Word has length 133 [2022-03-17 18:49:34,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:34,879 INFO L478 AbstractCegarLoop]: Abstraction has 597 states and 917 transitions. [2022-03-17 18:49:34,879 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 917 transitions. [2022-03-17 18:49:34,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 18:49:34,880 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:34,880 INFO L500 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:34,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:49:34,880 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:34,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:34,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2066498295, now seen corresponding path program 1 times [2022-03-17 18:49:34,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:34,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083009547] [2022-03-17 18:49:34,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:34,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:49:34,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:34,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083009547] [2022-03-17 18:49:34,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083009547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:34,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:34,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:49:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372110772] [2022-03-17 18:49:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:34,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:34,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:49:34,967 INFO L87 Difference]: Start difference. First operand 597 states and 917 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:36,974 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 [] [2022-03-17 18:49:37,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:37,253 INFO L93 Difference]: Finished difference Result 838 states and 1284 transitions. [2022-03-17 18:49:37,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:37,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 18:49:37,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:37,256 INFO L225 Difference]: With dead ends: 838 [2022-03-17 18:49:37,256 INFO L226 Difference]: Without dead ends: 838 [2022-03-17 18:49:37,256 INFO L911 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 [2022-03-17 18:49:37,257 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 138 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:37,257 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 438 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:49:37,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-03-17 18:49:37,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-03-17 18:49:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 833 states have (on average 1.5366146458583434) internal successors, (1280), 833 states have internal predecessors, (1280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:37,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1284 transitions. [2022-03-17 18:49:37,280 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1284 transitions. Word has length 133 [2022-03-17 18:49:37,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:37,281 INFO L478 AbstractCegarLoop]: Abstraction has 838 states and 1284 transitions. [2022-03-17 18:49:37,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:37,281 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1284 transitions. [2022-03-17 18:49:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 18:49:37,282 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:37,282 INFO L500 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:37,282 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:49:37,282 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:37,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:37,283 INFO L85 PathProgramCache]: Analyzing trace with hash -212152758, now seen corresponding path program 1 times [2022-03-17 18:49:37,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:37,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534253640] [2022-03-17 18:49:37,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:37,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:37,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-17 18:49:37,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:37,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534253640] [2022-03-17 18:49:37,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534253640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:37,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:37,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:49:37,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324779335] [2022-03-17 18:49:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:37,356 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:49:37,356 INFO L87 Difference]: Start difference. First operand 838 states and 1284 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:38,897 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 [] [2022-03-17 18:49:40,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:42,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:43,174 INFO L93 Difference]: Finished difference Result 865 states and 1319 transitions. [2022-03-17 18:49:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:43,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 18:49:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:43,176 INFO L225 Difference]: With dead ends: 865 [2022-03-17 18:49:43,176 INFO L226 Difference]: Without dead ends: 865 [2022-03-17 18:49:43,177 INFO L911 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 [2022-03-17 18:49:43,177 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:43,177 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 233 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 18:49:43,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-03-17 18:49:43,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-03-17 18:49:43,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 860 states have (on average 1.5290697674418605) internal successors, (1315), 860 states have internal predecessors, (1315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1319 transitions. [2022-03-17 18:49:43,187 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1319 transitions. Word has length 133 [2022-03-17 18:49:43,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:43,187 INFO L478 AbstractCegarLoop]: Abstraction has 865 states and 1319 transitions. [2022-03-17 18:49:43,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1319 transitions. [2022-03-17 18:49:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 18:49:43,188 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:43,188 INFO L500 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:43,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:49:43,188 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 864400651, now seen corresponding path program 1 times [2022-03-17 18:49:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:43,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229040654] [2022-03-17 18:49:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-17 18:49:43,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:43,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229040654] [2022-03-17 18:49:43,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229040654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:43,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:43,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:49:43,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162572240] [2022-03-17 18:49:43,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:43,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:43,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:43,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:43,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:49:43,264 INFO L87 Difference]: Start difference. First operand 865 states and 1319 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:45,281 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 [] [2022-03-17 18:49:45,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:45,521 INFO L93 Difference]: Finished difference Result 867 states and 1321 transitions. [2022-03-17 18:49:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:45,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 18:49:45,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:45,524 INFO L225 Difference]: With dead ends: 867 [2022-03-17 18:49:45,524 INFO L226 Difference]: Without dead ends: 867 [2022-03-17 18:49:45,524 INFO L911 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 [2022-03-17 18:49:45,524 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:45,525 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:49:45,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-03-17 18:49:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-03-17 18:49:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5278422273781902) internal successors, (1317), 862 states have internal predecessors, (1317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1321 transitions. [2022-03-17 18:49:45,534 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1321 transitions. Word has length 133 [2022-03-17 18:49:45,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:45,534 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1321 transitions. [2022-03-17 18:49:45,534 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:45,534 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1321 transitions. [2022-03-17 18:49:45,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-17 18:49:45,545 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:45,545 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:45,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:49:45,545 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:45,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:45,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1563265549, now seen corresponding path program 1 times [2022-03-17 18:49:45,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:45,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969771705] [2022-03-17 18:49:45,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:45,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:45,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 18:49:45,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:45,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969771705] [2022-03-17 18:49:45,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969771705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:45,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:45,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:45,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687403195] [2022-03-17 18:49:45,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:45,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:45,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:45,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:45,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:45,657 INFO L87 Difference]: Start difference. First operand 867 states and 1321 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:47,664 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 [] [2022-03-17 18:49:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:48,070 INFO L93 Difference]: Finished difference Result 1296 states and 1961 transitions. [2022-03-17 18:49:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:48,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-17 18:49:48,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:48,074 INFO L225 Difference]: With dead ends: 1296 [2022-03-17 18:49:48,074 INFO L226 Difference]: Without dead ends: 1296 [2022-03-17 18:49:48,074 INFO L911 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 [2022-03-17 18:49:48,074 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 110 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:48,074 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 325 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:49:48,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-03-17 18:49:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1083. [2022-03-17 18:49:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5510204081632653) internal successors, (1672), 1078 states have internal predecessors, (1672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:48,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1676 transitions. [2022-03-17 18:49:48,087 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1676 transitions. Word has length 213 [2022-03-17 18:49:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:48,087 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1676 transitions. [2022-03-17 18:49:48,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:48,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1676 transitions. [2022-03-17 18:49:48,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-17 18:49:48,089 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:48,089 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:48,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 18:49:48,089 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:48,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:48,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1764133390, now seen corresponding path program 1 times [2022-03-17 18:49:48,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:48,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770732923] [2022-03-17 18:49:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:48,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 18:49:48,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:48,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770732923] [2022-03-17 18:49:48,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770732923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:48,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:48,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534892313] [2022-03-17 18:49:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:48,215 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:48,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:48,215 INFO L87 Difference]: Start difference. First operand 1083 states and 1676 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:50,223 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 [] [2022-03-17 18:49:50,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:50,685 INFO L93 Difference]: Finished difference Result 1182 states and 1801 transitions. [2022-03-17 18:49:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:50,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-03-17 18:49:50,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:50,688 INFO L225 Difference]: With dead ends: 1182 [2022-03-17 18:49:50,688 INFO L226 Difference]: Without dead ends: 1182 [2022-03-17 18:49:50,688 INFO L911 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 [2022-03-17 18:49:50,689 INFO L912 BasicCegarLoop]: 260 mSDtfsCounter, 75 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:50,689 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 625 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:49:50,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-03-17 18:49:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1083. [2022-03-17 18:49:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.549165120593692) internal successors, (1670), 1078 states have internal predecessors, (1670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:50,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1674 transitions. [2022-03-17 18:49:50,700 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1674 transitions. Word has length 214 [2022-03-17 18:49:50,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:50,701 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1674 transitions. [2022-03-17 18:49:50,701 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:50,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1674 transitions. [2022-03-17 18:49:50,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-17 18:49:50,702 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:50,703 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:50,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:49:50,703 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:50,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:50,703 INFO L85 PathProgramCache]: Analyzing trace with hash -594230739, now seen corresponding path program 1 times [2022-03-17 18:49:50,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:50,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013985443] [2022-03-17 18:49:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:50,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:50,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:49:50,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:50,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013985443] [2022-03-17 18:49:50,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013985443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:50,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:50,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:50,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696322885] [2022-03-17 18:49:50,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:50,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:50,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:50,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:50,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:50,806 INFO L87 Difference]: Start difference. First operand 1083 states and 1674 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:52,819 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 [] [2022-03-17 18:49:53,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:53,299 INFO L93 Difference]: Finished difference Result 1180 states and 1797 transitions. [2022-03-17 18:49:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:53,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-03-17 18:49:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:53,302 INFO L225 Difference]: With dead ends: 1180 [2022-03-17 18:49:53,302 INFO L226 Difference]: Without dead ends: 1180 [2022-03-17 18:49:53,302 INFO L911 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 [2022-03-17 18:49:53,302 INFO L912 BasicCegarLoop]: 259 mSDtfsCounter, 96 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:53,303 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 623 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 589 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:49:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-03-17 18:49:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1083. [2022-03-17 18:49:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5473098330241188) internal successors, (1668), 1078 states have internal predecessors, (1668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1672 transitions. [2022-03-17 18:49:53,314 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1672 transitions. Word has length 228 [2022-03-17 18:49:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:53,314 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1672 transitions. [2022-03-17 18:49:53,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1672 transitions. [2022-03-17 18:49:53,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-03-17 18:49:53,316 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:53,316 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:53,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 18:49:53,317 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:53,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:53,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1637329481, now seen corresponding path program 1 times [2022-03-17 18:49:53,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:53,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507847742] [2022-03-17 18:49:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:53,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:49:53,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:53,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507847742] [2022-03-17 18:49:53,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507847742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:53,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:53,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:53,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529208037] [2022-03-17 18:49:53,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:53,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:53,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:53,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:53,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:53,423 INFO L87 Difference]: Start difference. First operand 1083 states and 1672 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:55,439 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 [] [2022-03-17 18:49:55,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:55,858 INFO L93 Difference]: Finished difference Result 1160 states and 1769 transitions. [2022-03-17 18:49:55,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:55,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 232 [2022-03-17 18:49:55,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:55,861 INFO L225 Difference]: With dead ends: 1160 [2022-03-17 18:49:55,861 INFO L226 Difference]: Without dead ends: 1160 [2022-03-17 18:49:55,861 INFO L911 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 [2022-03-17 18:49:55,861 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 92 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:55,861 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 609 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:49:55,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-03-17 18:49:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-03-17 18:49:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5454545454545454) internal successors, (1666), 1078 states have internal predecessors, (1666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1670 transitions. [2022-03-17 18:49:55,905 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1670 transitions. Word has length 232 [2022-03-17 18:49:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:55,905 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1670 transitions. [2022-03-17 18:49:55,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1670 transitions. [2022-03-17 18:49:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-17 18:49:55,907 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:55,907 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:49:55,907 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 18:49:55,907 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1788020019, now seen corresponding path program 1 times [2022-03-17 18:49:55,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:55,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375993122] [2022-03-17 18:49:55,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:55,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:56,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:49:56,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:56,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375993122] [2022-03-17 18:49:56,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375993122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:56,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:56,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:56,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706786916] [2022-03-17 18:49:56,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:56,007 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:56,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:56,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:56,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:56,007 INFO L87 Difference]: Start difference. First operand 1083 states and 1670 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:58,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:58,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:58,442 INFO L93 Difference]: Finished difference Result 1287 states and 1926 transitions. [2022-03-17 18:49:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:58,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-17 18:49:58,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:58,446 INFO L225 Difference]: With dead ends: 1287 [2022-03-17 18:49:58,446 INFO L226 Difference]: Without dead ends: 1287 [2022-03-17 18:49:58,446 INFO L911 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 [2022-03-17 18:49:58,447 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 127 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:58,447 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:49:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-03-17 18:49:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1083. [2022-03-17 18:49:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5324675324675325) internal successors, (1652), 1078 states have internal predecessors, (1652), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1656 transitions. [2022-03-17 18:49:58,458 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1656 transitions. Word has length 236 [2022-03-17 18:49:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:58,458 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1656 transitions. [2022-03-17 18:49:58,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1656 transitions. [2022-03-17 18:49:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-17 18:49:58,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:58,460 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:58,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 18:49:58,460 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:58,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2083420877, now seen corresponding path program 1 times [2022-03-17 18:49:58,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:58,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73211261] [2022-03-17 18:49:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:58,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:49:58,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:58,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73211261] [2022-03-17 18:49:58,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73211261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:58,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:58,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:58,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237573586] [2022-03-17 18:49:58,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:58,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:58,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:58,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:58,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:58,572 INFO L87 Difference]: Start difference. First operand 1083 states and 1656 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:00,587 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 [] [2022-03-17 18:50:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:01,020 INFO L93 Difference]: Finished difference Result 1160 states and 1753 transitions. [2022-03-17 18:50:01,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:01,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-17 18:50:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:01,023 INFO L225 Difference]: With dead ends: 1160 [2022-03-17 18:50:01,023 INFO L226 Difference]: Without dead ends: 1160 [2022-03-17 18:50:01,023 INFO L911 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 [2022-03-17 18:50:01,024 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 80 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:01,024 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 605 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-03-17 18:50:01,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-03-17 18:50:01,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.530612244897959) internal successors, (1650), 1078 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:01,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1654 transitions. [2022-03-17 18:50:01,033 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1654 transitions. Word has length 236 [2022-03-17 18:50:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:01,033 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1654 transitions. [2022-03-17 18:50:01,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:01,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1654 transitions. [2022-03-17 18:50:01,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-17 18:50:01,035 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:01,035 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:01,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:50:01,036 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:01,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:01,036 INFO L85 PathProgramCache]: Analyzing trace with hash 993793841, now seen corresponding path program 1 times [2022-03-17 18:50:01,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:01,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771259072] [2022-03-17 18:50:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:01,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:01,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:01,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771259072] [2022-03-17 18:50:01,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771259072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:01,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:01,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:01,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900581136] [2022-03-17 18:50:01,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:01,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:01,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:01,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:01,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:01,136 INFO L87 Difference]: Start difference. First operand 1083 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:03,145 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 [] [2022-03-17 18:50:03,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:03,582 INFO L93 Difference]: Finished difference Result 1150 states and 1737 transitions. [2022-03-17 18:50:03,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:03,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-03-17 18:50:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:03,585 INFO L225 Difference]: With dead ends: 1150 [2022-03-17 18:50:03,585 INFO L226 Difference]: Without dead ends: 1150 [2022-03-17 18:50:03,585 INFO L911 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 [2022-03-17 18:50:03,585 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 76 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:03,585 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 597 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:03,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-03-17 18:50:03,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1083. [2022-03-17 18:50:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.528756957328386) internal successors, (1648), 1078 states have internal predecessors, (1648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1652 transitions. [2022-03-17 18:50:03,609 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1652 transitions. Word has length 237 [2022-03-17 18:50:03,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:03,609 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1652 transitions. [2022-03-17 18:50:03,609 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1652 transitions. [2022-03-17 18:50:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-17 18:50:03,611 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:03,611 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:03,612 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 18:50:03,612 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash 724224944, now seen corresponding path program 1 times [2022-03-17 18:50:03,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:03,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461237997] [2022-03-17 18:50:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:03,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:03,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:03,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461237997] [2022-03-17 18:50:03,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461237997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:03,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:03,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:03,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108605325] [2022-03-17 18:50:03,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:03,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:03,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:03,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:03,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:03,718 INFO L87 Difference]: Start difference. First operand 1083 states and 1652 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:05,731 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 [] [2022-03-17 18:50:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:06,141 INFO L93 Difference]: Finished difference Result 1142 states and 1725 transitions. [2022-03-17 18:50:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:06,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-03-17 18:50:06,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:06,145 INFO L225 Difference]: With dead ends: 1142 [2022-03-17 18:50:06,145 INFO L226 Difference]: Without dead ends: 1142 [2022-03-17 18:50:06,145 INFO L911 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 [2022-03-17 18:50:06,145 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 69 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:06,145 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 589 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-17 18:50:06,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-03-17 18:50:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5269016697588127) internal successors, (1646), 1078 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1650 transitions. [2022-03-17 18:50:06,173 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1650 transitions. Word has length 237 [2022-03-17 18:50:06,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:06,173 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1650 transitions. [2022-03-17 18:50:06,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1650 transitions. [2022-03-17 18:50:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-17 18:50:06,175 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:06,175 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:06,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:50:06,176 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:06,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash 799309157, now seen corresponding path program 1 times [2022-03-17 18:50:06,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:06,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110539731] [2022-03-17 18:50:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:06,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:06,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:06,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110539731] [2022-03-17 18:50:06,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110539731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:06,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:06,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:06,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996302388] [2022-03-17 18:50:06,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:06,287 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:06,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:06,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:06,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:06,288 INFO L87 Difference]: Start difference. First operand 1083 states and 1650 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:08,295 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 [] [2022-03-17 18:50:08,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:08,723 INFO L93 Difference]: Finished difference Result 1142 states and 1723 transitions. [2022-03-17 18:50:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:08,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-17 18:50:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:08,726 INFO L225 Difference]: With dead ends: 1142 [2022-03-17 18:50:08,726 INFO L226 Difference]: Without dead ends: 1142 [2022-03-17 18:50:08,726 INFO L911 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 [2022-03-17 18:50:08,726 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 65 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:08,726 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 587 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:08,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-17 18:50:08,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-03-17 18:50:08,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5250463821892393) internal successors, (1644), 1078 states have internal predecessors, (1644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:08,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1648 transitions. [2022-03-17 18:50:08,735 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1648 transitions. Word has length 239 [2022-03-17 18:50:08,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:08,735 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1648 transitions. [2022-03-17 18:50:08,735 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1648 transitions. [2022-03-17 18:50:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-17 18:50:08,737 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:08,737 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:08,737 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:50:08,737 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:08,737 INFO L85 PathProgramCache]: Analyzing trace with hash 858623079, now seen corresponding path program 1 times [2022-03-17 18:50:08,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:08,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053610646] [2022-03-17 18:50:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:08,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:08,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:08,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053610646] [2022-03-17 18:50:08,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053610646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:08,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:08,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:08,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247105804] [2022-03-17 18:50:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:08,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:08,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:08,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:08,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:08,856 INFO L87 Difference]: Start difference. First operand 1083 states and 1648 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:10,863 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 [] [2022-03-17 18:50:11,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:11,256 INFO L93 Difference]: Finished difference Result 1126 states and 1695 transitions. [2022-03-17 18:50:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:11,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-17 18:50:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:11,259 INFO L225 Difference]: With dead ends: 1126 [2022-03-17 18:50:11,259 INFO L226 Difference]: Without dead ends: 1126 [2022-03-17 18:50:11,260 INFO L911 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 [2022-03-17 18:50:11,260 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 54 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:11,260 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 577 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:11,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-03-17 18:50:11,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1083. [2022-03-17 18:50:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.523191094619666) internal successors, (1642), 1078 states have internal predecessors, (1642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1646 transitions. [2022-03-17 18:50:11,269 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1646 transitions. Word has length 240 [2022-03-17 18:50:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:11,269 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1646 transitions. [2022-03-17 18:50:11,269 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1646 transitions. [2022-03-17 18:50:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-17 18:50:11,271 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:11,271 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:11,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:50:11,271 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:11,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:11,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1164096122, now seen corresponding path program 1 times [2022-03-17 18:50:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:11,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714675459] [2022-03-17 18:50:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:11,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:11,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714675459] [2022-03-17 18:50:11,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714675459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:11,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:11,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:11,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693182522] [2022-03-17 18:50:11,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:11,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:11,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:11,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:11,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:11,378 INFO L87 Difference]: Start difference. First operand 1083 states and 1646 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:13,395 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 [] [2022-03-17 18:50:13,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:13,810 INFO L93 Difference]: Finished difference Result 1413 states and 2109 transitions. [2022-03-17 18:50:13,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:13,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-17 18:50:13,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:13,813 INFO L225 Difference]: With dead ends: 1413 [2022-03-17 18:50:13,813 INFO L226 Difference]: Without dead ends: 1413 [2022-03-17 18:50:13,814 INFO L911 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 [2022-03-17 18:50:13,814 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 119 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:13,814 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 325 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-03-17 18:50:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1173. [2022-03-17 18:50:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5171232876712328) internal successors, (1772), 1168 states have internal predecessors, (1772), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1776 transitions. [2022-03-17 18:50:13,823 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1776 transitions. Word has length 241 [2022-03-17 18:50:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:13,824 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1776 transitions. [2022-03-17 18:50:13,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1776 transitions. [2022-03-17 18:50:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-17 18:50:13,832 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:13,832 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:13,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:50:13,832 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:13,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:13,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2061310594, now seen corresponding path program 1 times [2022-03-17 18:50:13,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:13,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020800831] [2022-03-17 18:50:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:13,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:13,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:13,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020800831] [2022-03-17 18:50:13,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020800831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:13,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:13,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:13,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127931748] [2022-03-17 18:50:13,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:13,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:13,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:13,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:13,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:13,947 INFO L87 Difference]: Start difference. First operand 1173 states and 1776 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-03-17 18:50:15,955 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 [] [2022-03-17 18:50:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:16,333 INFO L93 Difference]: Finished difference Result 1216 states and 1823 transitions. [2022-03-17 18:50:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:16,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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 242 [2022-03-17 18:50:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:16,336 INFO L225 Difference]: With dead ends: 1216 [2022-03-17 18:50:16,336 INFO L226 Difference]: Without dead ends: 1216 [2022-03-17 18:50:16,336 INFO L911 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 [2022-03-17 18:50:16,336 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 55 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:16,336 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 573 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:16,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-03-17 18:50:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1173. [2022-03-17 18:50:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5154109589041096) internal successors, (1770), 1168 states have internal predecessors, (1770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1774 transitions. [2022-03-17 18:50:16,355 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1774 transitions. Word has length 242 [2022-03-17 18:50:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:16,355 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1774 transitions. [2022-03-17 18:50:16,355 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-03-17 18:50:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1774 transitions. [2022-03-17 18:50:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-17 18:50:16,357 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:16,359 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:16,359 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 18:50:16,359 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash -691949702, now seen corresponding path program 1 times [2022-03-17 18:50:16,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:16,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285709940] [2022-03-17 18:50:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:16,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:16,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:16,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285709940] [2022-03-17 18:50:16,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285709940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:16,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:16,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:16,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349073183] [2022-03-17 18:50:16,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:16,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:16,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:16,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:16,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:16,464 INFO L87 Difference]: Start difference. First operand 1173 states and 1774 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-03-17 18:50:18,484 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 [] [2022-03-17 18:50:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:18,837 INFO L93 Difference]: Finished difference Result 1212 states and 1817 transitions. [2022-03-17 18:50:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:18,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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 242 [2022-03-17 18:50:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:18,841 INFO L225 Difference]: With dead ends: 1212 [2022-03-17 18:50:18,841 INFO L226 Difference]: Without dead ends: 1212 [2022-03-17 18:50:18,841 INFO L911 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 [2022-03-17 18:50:18,841 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 48 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:18,841 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 569 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-03-17 18:50:18,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1173. [2022-03-17 18:50:18,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5136986301369864) internal successors, (1768), 1168 states have internal predecessors, (1768), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:18,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1772 transitions. [2022-03-17 18:50:18,850 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1772 transitions. Word has length 242 [2022-03-17 18:50:18,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:18,851 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1772 transitions. [2022-03-17 18:50:18,851 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-03-17 18:50:18,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1772 transitions. [2022-03-17 18:50:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-17 18:50:18,852 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:18,852 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:18,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 18:50:18,852 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash 273964732, now seen corresponding path program 1 times [2022-03-17 18:50:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:18,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564460296] [2022-03-17 18:50:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:18,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:18,966 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:18,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:18,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564460296] [2022-03-17 18:50:18,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564460296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:18,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:18,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:18,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412186100] [2022-03-17 18:50:18,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:18,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:18,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:18,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:18,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:18,967 INFO L87 Difference]: Start difference. First operand 1173 states and 1772 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:20,975 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 [] [2022-03-17 18:50:21,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:21,351 INFO L93 Difference]: Finished difference Result 1208 states and 1809 transitions. [2022-03-17 18:50:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:21,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 243 [2022-03-17 18:50:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:21,354 INFO L225 Difference]: With dead ends: 1208 [2022-03-17 18:50:21,355 INFO L226 Difference]: Without dead ends: 1208 [2022-03-17 18:50:21,355 INFO L911 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 [2022-03-17 18:50:21,355 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 50 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:21,355 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 567 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:21,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-03-17 18:50:21,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1173. [2022-03-17 18:50:21,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5119863013698631) internal successors, (1766), 1168 states have internal predecessors, (1766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1770 transitions. [2022-03-17 18:50:21,364 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1770 transitions. Word has length 243 [2022-03-17 18:50:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:21,365 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1770 transitions. [2022-03-17 18:50:21,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:21,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1770 transitions. [2022-03-17 18:50:21,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-17 18:50:21,366 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:21,366 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:21,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 18:50:21,366 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:21,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1984975413, now seen corresponding path program 1 times [2022-03-17 18:50:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:21,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137707302] [2022-03-17 18:50:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:21,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:21,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:21,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137707302] [2022-03-17 18:50:21,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137707302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:21,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:21,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:21,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390940136] [2022-03-17 18:50:21,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:21,467 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:21,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:21,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:21,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:21,468 INFO L87 Difference]: Start difference. First operand 1173 states and 1770 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:23,479 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 [] [2022-03-17 18:50:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:23,888 INFO L93 Difference]: Finished difference Result 1503 states and 2239 transitions. [2022-03-17 18:50:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-17 18:50:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:23,890 INFO L225 Difference]: With dead ends: 1503 [2022-03-17 18:50:23,890 INFO L226 Difference]: Without dead ends: 1503 [2022-03-17 18:50:23,891 INFO L911 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 [2022-03-17 18:50:23,891 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 116 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:23,891 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-03-17 18:50:23,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1272. [2022-03-17 18:50:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.5130228887134964) internal successors, (1917), 1267 states have internal predecessors, (1917), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:23,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1921 transitions. [2022-03-17 18:50:23,903 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1921 transitions. Word has length 245 [2022-03-17 18:50:23,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:23,903 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1921 transitions. [2022-03-17 18:50:23,903 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:23,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1921 transitions. [2022-03-17 18:50:23,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-17 18:50:23,905 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:23,905 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:23,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 18:50:23,905 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:23,906 INFO L85 PathProgramCache]: Analyzing trace with hash -443370408, now seen corresponding path program 1 times [2022-03-17 18:50:23,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:23,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261862803] [2022-03-17 18:50:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:24,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:24,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261862803] [2022-03-17 18:50:24,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261862803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:24,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:24,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:24,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241040998] [2022-03-17 18:50:24,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:24,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:24,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:24,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:24,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:24,006 INFO L87 Difference]: Start difference. First operand 1272 states and 1921 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:26,016 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 [] [2022-03-17 18:50:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:26,360 INFO L93 Difference]: Finished difference Result 1299 states and 1948 transitions. [2022-03-17 18:50:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:26,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-17 18:50:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:26,362 INFO L225 Difference]: With dead ends: 1299 [2022-03-17 18:50:26,362 INFO L226 Difference]: Without dead ends: 1299 [2022-03-17 18:50:26,362 INFO L911 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 [2022-03-17 18:50:26,363 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 38 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:26,363 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:26,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2022-03-17 18:50:26,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1272. [2022-03-17 18:50:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.511444356748224) internal successors, (1915), 1267 states have internal predecessors, (1915), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:26,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1919 transitions. [2022-03-17 18:50:26,384 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1919 transitions. Word has length 246 [2022-03-17 18:50:26,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:26,385 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1919 transitions. [2022-03-17 18:50:26,385 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:26,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1919 transitions. [2022-03-17 18:50:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-17 18:50:26,386 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:26,387 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:26,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:50:26,387 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:26,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1923509620, now seen corresponding path program 1 times [2022-03-17 18:50:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:26,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391722055] [2022-03-17 18:50:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:26,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:26,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:26,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391722055] [2022-03-17 18:50:26,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391722055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:26,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:26,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:26,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931787646] [2022-03-17 18:50:26,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:26,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:26,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:26,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:26,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:26,506 INFO L87 Difference]: Start difference. First operand 1272 states and 1919 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:28,513 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 [] [2022-03-17 18:50:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:28,933 INFO L93 Difference]: Finished difference Result 1602 states and 2382 transitions. [2022-03-17 18:50:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:28,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-17 18:50:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:28,936 INFO L225 Difference]: With dead ends: 1602 [2022-03-17 18:50:28,936 INFO L226 Difference]: Without dead ends: 1602 [2022-03-17 18:50:28,936 INFO L911 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 [2022-03-17 18:50:28,936 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:28,936 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:28,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-03-17 18:50:28,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1377. [2022-03-17 18:50:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.510204081632653) internal successors, (2072), 1372 states have internal predecessors, (2072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2076 transitions. [2022-03-17 18:50:28,947 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2076 transitions. Word has length 246 [2022-03-17 18:50:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:28,947 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2076 transitions. [2022-03-17 18:50:28,948 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2076 transitions. [2022-03-17 18:50:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-17 18:50:28,949 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:28,949 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:28,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:50:28,950 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:28,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:28,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1170471363, now seen corresponding path program 1 times [2022-03-17 18:50:28,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:28,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949350883] [2022-03-17 18:50:28,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:28,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 18:50:29,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:29,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949350883] [2022-03-17 18:50:29,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949350883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:29,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:29,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:29,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944690723] [2022-03-17 18:50:29,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:29,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:29,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:29,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:29,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:29,088 INFO L87 Difference]: Start difference. First operand 1377 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:31,103 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 [] [2022-03-17 18:50:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:31,445 INFO L93 Difference]: Finished difference Result 1400 states and 2099 transitions. [2022-03-17 18:50:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:31,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-17 18:50:31,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:31,448 INFO L225 Difference]: With dead ends: 1400 [2022-03-17 18:50:31,448 INFO L226 Difference]: Without dead ends: 1400 [2022-03-17 18:50:31,448 INFO L911 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 [2022-03-17 18:50:31,448 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:31,448 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 551 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2022-03-17 18:50:31,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1377. [2022-03-17 18:50:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.5087463556851313) internal successors, (2070), 1372 states have internal predecessors, (2070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2074 transitions. [2022-03-17 18:50:31,458 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2074 transitions. Word has length 247 [2022-03-17 18:50:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:31,458 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2074 transitions. [2022-03-17 18:50:31,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2074 transitions. [2022-03-17 18:50:31,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-17 18:50:31,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:31,460 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:31,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 18:50:31,460 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:31,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1312124425, now seen corresponding path program 1 times [2022-03-17 18:50:31,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:31,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076830422] [2022-03-17 18:50:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-17 18:50:31,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:31,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076830422] [2022-03-17 18:50:31,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076830422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:31,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:31,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:31,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254483858] [2022-03-17 18:50:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:31,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:31,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:31,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:31,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:31,602 INFO L87 Difference]: Start difference. First operand 1377 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:33,609 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 [] [2022-03-17 18:50:34,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:34,006 INFO L93 Difference]: Finished difference Result 1707 states and 2534 transitions. [2022-03-17 18:50:34,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:34,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-17 18:50:34,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:34,009 INFO L225 Difference]: With dead ends: 1707 [2022-03-17 18:50:34,009 INFO L226 Difference]: Without dead ends: 1707 [2022-03-17 18:50:34,009 INFO L911 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 [2022-03-17 18:50:34,009 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 112 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:34,009 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:34,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-03-17 18:50:34,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1488. [2022-03-17 18:50:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5077545515846258) internal successors, (2236), 1483 states have internal predecessors, (2236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2240 transitions. [2022-03-17 18:50:34,020 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2240 transitions. Word has length 247 [2022-03-17 18:50:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:34,020 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2240 transitions. [2022-03-17 18:50:34,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:34,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2240 transitions. [2022-03-17 18:50:34,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-03-17 18:50:34,022 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:34,022 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:34,022 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 18:50:34,022 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:34,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:34,023 INFO L85 PathProgramCache]: Analyzing trace with hash -89380643, now seen corresponding path program 1 times [2022-03-17 18:50:34,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:34,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397475595] [2022-03-17 18:50:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:34,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-17 18:50:34,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:34,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397475595] [2022-03-17 18:50:34,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397475595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:34,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:34,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:34,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473094576] [2022-03-17 18:50:34,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:34,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:34,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:34,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:34,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:34,155 INFO L87 Difference]: Start difference. First operand 1488 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:36,164 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 [] [2022-03-17 18:50:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:36,500 INFO L93 Difference]: Finished difference Result 1507 states and 2259 transitions. [2022-03-17 18:50:36,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:36,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-03-17 18:50:36,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:36,503 INFO L225 Difference]: With dead ends: 1507 [2022-03-17 18:50:36,503 INFO L226 Difference]: Without dead ends: 1507 [2022-03-17 18:50:36,503 INFO L911 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 [2022-03-17 18:50:36,503 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 28 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:36,503 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 545 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-03-17 18:50:36,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1488. [2022-03-17 18:50:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5064059339177343) internal successors, (2234), 1483 states have internal predecessors, (2234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2238 transitions. [2022-03-17 18:50:36,513 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2238 transitions. Word has length 248 [2022-03-17 18:50:36,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:36,513 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2238 transitions. [2022-03-17 18:50:36,513 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2238 transitions. [2022-03-17 18:50:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-03-17 18:50:36,515 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:36,515 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:50:36,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 18:50:36,515 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash -869309252, now seen corresponding path program 1 times [2022-03-17 18:50:36,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:36,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305168916] [2022-03-17 18:50:36,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:36,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:36,633 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-17 18:50:36,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:36,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305168916] [2022-03-17 18:50:36,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305168916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:36,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:36,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:36,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159475326] [2022-03-17 18:50:36,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:36,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:36,634 INFO L87 Difference]: Start difference. First operand 1488 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:38,641 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 [] [2022-03-17 18:50:39,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:39,066 INFO L93 Difference]: Finished difference Result 1818 states and 2673 transitions. [2022-03-17 18:50:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:39,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 253 [2022-03-17 18:50:39,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:39,069 INFO L225 Difference]: With dead ends: 1818 [2022-03-17 18:50:39,069 INFO L226 Difference]: Without dead ends: 1818 [2022-03-17 18:50:39,069 INFO L911 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 [2022-03-17 18:50:39,070 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:39,070 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 362 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:39,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2022-03-17 18:50:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1545. [2022-03-17 18:50:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4837662337662338) internal successors, (2285), 1540 states have internal predecessors, (2285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2289 transitions. [2022-03-17 18:50:39,082 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2289 transitions. Word has length 253 [2022-03-17 18:50:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:39,082 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2289 transitions. [2022-03-17 18:50:39,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:39,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2289 transitions. [2022-03-17 18:50:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-03-17 18:50:39,085 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:39,085 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:39,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 18:50:39,085 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash -48354360, now seen corresponding path program 1 times [2022-03-17 18:50:39,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:39,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136785853] [2022-03-17 18:50:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:39,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-17 18:50:39,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:39,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136785853] [2022-03-17 18:50:39,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136785853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:39,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:39,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:39,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974874102] [2022-03-17 18:50:39,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:39,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:39,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:39,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:39,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:39,188 INFO L87 Difference]: Start difference. First operand 1545 states and 2289 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:41,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:43,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:45,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:47,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:47,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:47,610 INFO L93 Difference]: Finished difference Result 1564 states and 2308 transitions. [2022-03-17 18:50:47,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:47,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-03-17 18:50:47,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:47,612 INFO L225 Difference]: With dead ends: 1564 [2022-03-17 18:50:47,612 INFO L226 Difference]: Without dead ends: 1564 [2022-03-17 18:50:47,612 INFO L911 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 [2022-03-17 18:50:47,613 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 44 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:47,613 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 541 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 446 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-17 18:50:47,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-03-17 18:50:47,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1545. [2022-03-17 18:50:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4824675324675325) internal successors, (2283), 1540 states have internal predecessors, (2283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2287 transitions. [2022-03-17 18:50:47,642 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2287 transitions. Word has length 254 [2022-03-17 18:50:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:47,643 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2287 transitions. [2022-03-17 18:50:47,643 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2287 transitions. [2022-03-17 18:50:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-17 18:50:47,645 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:47,645 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:47,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 18:50:47,645 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:47,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1367824325, now seen corresponding path program 1 times [2022-03-17 18:50:47,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:47,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091957912] [2022-03-17 18:50:47,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:47,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:47,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:47,747 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-17 18:50:47,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:47,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091957912] [2022-03-17 18:50:47,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091957912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:47,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:47,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:47,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541134568] [2022-03-17 18:50:47,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:47,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:47,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:47,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:47,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:47,749 INFO L87 Difference]: Start difference. First operand 1545 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:49,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:50,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:50,084 INFO L93 Difference]: Finished difference Result 1557 states and 2298 transitions. [2022-03-17 18:50:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:50,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-03-17 18:50:50,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:50,086 INFO L225 Difference]: With dead ends: 1557 [2022-03-17 18:50:50,086 INFO L226 Difference]: Without dead ends: 1557 [2022-03-17 18:50:50,086 INFO L911 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 [2022-03-17 18:50:50,086 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 40 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:50,086 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 535 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:50,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2022-03-17 18:50:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1545. [2022-03-17 18:50:50,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4811688311688311) internal successors, (2281), 1540 states have internal predecessors, (2281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2285 transitions. [2022-03-17 18:50:50,097 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2285 transitions. Word has length 255 [2022-03-17 18:50:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:50,099 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2285 transitions. [2022-03-17 18:50:50,099 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2285 transitions. [2022-03-17 18:50:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-17 18:50:50,101 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:50,101 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-17 18:50:50,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 18:50:50,101 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:50,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1074570741, now seen corresponding path program 1 times [2022-03-17 18:50:50,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:50,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871038213] [2022-03-17 18:50:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:50,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:50,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 18:50:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:50,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871038213] [2022-03-17 18:50:50,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871038213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:50,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:50,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:50,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558204868] [2022-03-17 18:50:50,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:50,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:50,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:50,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:50,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:50,250 INFO L87 Difference]: Start difference. First operand 1545 states and 2285 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:52,258 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 [] [2022-03-17 18:50:52,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:52,723 INFO L93 Difference]: Finished difference Result 1813 states and 2657 transitions. [2022-03-17 18:50:52,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:52,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-17 18:50:52,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:52,726 INFO L225 Difference]: With dead ends: 1813 [2022-03-17 18:50:52,726 INFO L226 Difference]: Without dead ends: 1813 [2022-03-17 18:50:52,726 INFO L911 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 [2022-03-17 18:50:52,726 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 64 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:52,726 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 622 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 597 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:50:52,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-03-17 18:50:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1670. [2022-03-17 18:50:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1665 states have (on average 1.4828828828828828) internal successors, (2469), 1665 states have internal predecessors, (2469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2473 transitions. [2022-03-17 18:50:52,738 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2473 transitions. Word has length 257 [2022-03-17 18:50:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:52,738 INFO L478 AbstractCegarLoop]: Abstraction has 1670 states and 2473 transitions. [2022-03-17 18:50:52,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:52,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2473 transitions. [2022-03-17 18:50:52,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-17 18:50:52,740 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:52,741 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-17 18:50:52,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 18:50:52,741 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2011154316, now seen corresponding path program 1 times [2022-03-17 18:50:52,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:52,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849486522] [2022-03-17 18:50:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:52,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-03-17 18:50:52,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:52,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849486522] [2022-03-17 18:50:52,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849486522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:52,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:52,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:50:52,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849757390] [2022-03-17 18:50:52,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:52,875 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:50:52,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:52,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:50:52,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:50:52,875 INFO L87 Difference]: Start difference. First operand 1670 states and 2473 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:54,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:56,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:58,370 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 [] [2022-03-17 18:50:58,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:58,746 INFO L93 Difference]: Finished difference Result 2187 states and 3236 transitions. [2022-03-17 18:50:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:50:58,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-17 18:50:58,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:58,749 INFO L225 Difference]: With dead ends: 2187 [2022-03-17 18:50:58,749 INFO L226 Difference]: Without dead ends: 2187 [2022-03-17 18:50:58,749 INFO L911 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 [2022-03-17 18:50:58,750 INFO L912 BasicCegarLoop]: 376 mSDtfsCounter, 128 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:58,750 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 571 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 399 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 18:50:58,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-03-17 18:50:58,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2187. [2022-03-17 18:50:58,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2182 states have (on average 1.4812098991750688) internal successors, (3232), 2182 states have internal predecessors, (3232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3236 transitions. [2022-03-17 18:50:58,764 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3236 transitions. Word has length 257 [2022-03-17 18:50:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:58,764 INFO L478 AbstractCegarLoop]: Abstraction has 2187 states and 3236 transitions. [2022-03-17 18:50:58,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3236 transitions. [2022-03-17 18:50:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-17 18:50:58,767 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:58,768 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:58,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 18:50:58,768 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:58,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2076861001, now seen corresponding path program 1 times [2022-03-17 18:50:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328183676] [2022-03-17 18:50:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:59,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-17 18:50:59,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:59,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328183676] [2022-03-17 18:50:59,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328183676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:59,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:59,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:50:59,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494950299] [2022-03-17 18:50:59,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:59,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:50:59,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:59,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:50:59,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:50:59,070 INFO L87 Difference]: Start difference. First operand 2187 states and 3236 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:01,080 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 [] [2022-03-17 18:51:02,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:02,304 INFO L93 Difference]: Finished difference Result 4189 states and 6238 transitions. [2022-03-17 18:51:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 18:51:02,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-03-17 18:51:02,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:02,309 INFO L225 Difference]: With dead ends: 4189 [2022-03-17 18:51:02,309 INFO L226 Difference]: Without dead ends: 4189 [2022-03-17 18:51:02,309 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:51:02,310 INFO L912 BasicCegarLoop]: 331 mSDtfsCounter, 203 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:02,310 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1300 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1480 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 18:51:02,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4189 states. [2022-03-17 18:51:02,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4189 to 3938. [2022-03-17 18:51:02,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3933 states have (on average 1.5026697177726926) internal successors, (5910), 3933 states have internal predecessors, (5910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:02,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5914 transitions. [2022-03-17 18:51:02,342 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5914 transitions. Word has length 330 [2022-03-17 18:51:02,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:02,342 INFO L478 AbstractCegarLoop]: Abstraction has 3938 states and 5914 transitions. [2022-03-17 18:51:02,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5914 transitions. [2022-03-17 18:51:02,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-17 18:51:02,347 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:02,348 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:02,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 18:51:02,348 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:02,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash 674782559, now seen corresponding path program 1 times [2022-03-17 18:51:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:02,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283289523] [2022-03-17 18:51:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-17 18:51:02,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:02,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283289523] [2022-03-17 18:51:02,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283289523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:02,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:02,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:51:02,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942848063] [2022-03-17 18:51:02,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:02,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:51:02,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:02,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:51:02,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:51:02,610 INFO L87 Difference]: Start difference. First operand 3938 states and 5914 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:04,618 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 [] [2022-03-17 18:51:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:05,765 INFO L93 Difference]: Finished difference Result 6068 states and 8920 transitions. [2022-03-17 18:51:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:51:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-03-17 18:51:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:05,773 INFO L225 Difference]: With dead ends: 6068 [2022-03-17 18:51:05,773 INFO L226 Difference]: Without dead ends: 6068 [2022-03-17 18:51:05,773 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:51:05,782 INFO L912 BasicCegarLoop]: 304 mSDtfsCounter, 503 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 76 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:05,782 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 1090 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1304 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 18:51:05,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2022-03-17 18:51:05,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3980. [2022-03-17 18:51:05,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3975 states have (on average 1.5006289308176102) internal successors, (5965), 3975 states have internal predecessors, (5965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:05,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5969 transitions. [2022-03-17 18:51:05,826 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5969 transitions. Word has length 331 [2022-03-17 18:51:05,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:05,826 INFO L478 AbstractCegarLoop]: Abstraction has 3980 states and 5969 transitions. [2022-03-17 18:51:05,826 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:05,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5969 transitions. [2022-03-17 18:51:05,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-17 18:51:05,831 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:05,831 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2022-03-17 18:51:05,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 18:51:05,831 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2119834520, now seen corresponding path program 1 times [2022-03-17 18:51:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:05,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008652024] [2022-03-17 18:51:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:05,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-17 18:51:06,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:06,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008652024] [2022-03-17 18:51:06,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008652024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:06,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:06,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77659846] [2022-03-17 18:51:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:06,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:06,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:06,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:06,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:06,007 INFO L87 Difference]: Start difference. First operand 3980 states and 5969 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) [2022-03-17 18:51:08,015 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 [] [2022-03-17 18:51:08,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:08,529 INFO L93 Difference]: Finished difference Result 4282 states and 6355 transitions. [2022-03-17 18:51:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:08,529 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 331 [2022-03-17 18:51:08,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:08,534 INFO L225 Difference]: With dead ends: 4282 [2022-03-17 18:51:08,534 INFO L226 Difference]: Without dead ends: 4266 [2022-03-17 18:51:08,535 INFO L911 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 [2022-03-17 18:51:08,535 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 58 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:08,535 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 612 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 578 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:51:08,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-03-17 18:51:08,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3968. [2022-03-17 18:51:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.5001261670451678) internal successors, (5945), 3963 states have internal predecessors, (5945), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5949 transitions. [2022-03-17 18:51:08,594 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5949 transitions. Word has length 331 [2022-03-17 18:51:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:08,594 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5949 transitions. [2022-03-17 18:51:08,594 INFO L479 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) [2022-03-17 18:51:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5949 transitions. [2022-03-17 18:51:08,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-03-17 18:51:08,599 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:08,599 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:08,599 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 18:51:08,599 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:08,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:08,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1801634778, now seen corresponding path program 1 times [2022-03-17 18:51:08,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:08,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792330758] [2022-03-17 18:51:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:08,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 708 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-17 18:51:08,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792330758] [2022-03-17 18:51:08,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792330758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:08,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:08,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:08,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520653959] [2022-03-17 18:51:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:08,740 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:08,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:08,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:08,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:08,741 INFO L87 Difference]: Start difference. First operand 3968 states and 5949 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:10,748 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 [] [2022-03-17 18:51:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:11,201 INFO L93 Difference]: Finished difference Result 4250 states and 6311 transitions. [2022-03-17 18:51:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:11,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 347 [2022-03-17 18:51:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:11,206 INFO L225 Difference]: With dead ends: 4250 [2022-03-17 18:51:11,206 INFO L226 Difference]: Without dead ends: 4250 [2022-03-17 18:51:11,206 INFO L911 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 [2022-03-17 18:51:11,207 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 62 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:11,207 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 608 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 560 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:11,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2022-03-17 18:51:11,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3968. [2022-03-17 18:51:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.498107494322483) internal successors, (5937), 3963 states have internal predecessors, (5937), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5941 transitions. [2022-03-17 18:51:11,243 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5941 transitions. Word has length 347 [2022-03-17 18:51:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:11,243 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5941 transitions. [2022-03-17 18:51:11,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5941 transitions. [2022-03-17 18:51:11,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-17 18:51:11,249 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:11,249 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:11,249 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 18:51:11,249 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:11,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1466071603, now seen corresponding path program 1 times [2022-03-17 18:51:11,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:11,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598752468] [2022-03-17 18:51:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:11,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:11,404 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-17 18:51:11,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:11,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598752468] [2022-03-17 18:51:11,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598752468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:11,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:11,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:11,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609617475] [2022-03-17 18:51:11,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:11,405 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:11,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:11,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:11,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:11,405 INFO L87 Difference]: Start difference. First operand 3968 states and 5941 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:13,419 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 [] [2022-03-17 18:51:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:13,843 INFO L93 Difference]: Finished difference Result 4210 states and 6251 transitions. [2022-03-17 18:51:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:13,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 348 [2022-03-17 18:51:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:13,848 INFO L225 Difference]: With dead ends: 4210 [2022-03-17 18:51:13,848 INFO L226 Difference]: Without dead ends: 4210 [2022-03-17 18:51:13,849 INFO L911 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 [2022-03-17 18:51:13,849 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 71 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:13,849 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 594 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-03-17 18:51:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3968. [2022-03-17 18:51:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.496088821599798) internal successors, (5929), 3963 states have internal predecessors, (5929), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5933 transitions. [2022-03-17 18:51:13,884 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5933 transitions. Word has length 348 [2022-03-17 18:51:13,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:13,884 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5933 transitions. [2022-03-17 18:51:13,884 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:13,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5933 transitions. [2022-03-17 18:51:13,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-17 18:51:13,890 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:13,890 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:13,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 18:51:13,890 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:13,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:13,890 INFO L85 PathProgramCache]: Analyzing trace with hash -951999064, now seen corresponding path program 1 times [2022-03-17 18:51:13,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:13,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263179527] [2022-03-17 18:51:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-17 18:51:14,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:14,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263179527] [2022-03-17 18:51:14,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263179527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:14,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:14,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:51:14,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329056889] [2022-03-17 18:51:14,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:14,082 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:51:14,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:14,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:51:14,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:51:14,082 INFO L87 Difference]: Start difference. First operand 3968 states and 5933 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:16,090 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 [] [2022-03-17 18:51:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:16,534 INFO L93 Difference]: Finished difference Result 4446 states and 6561 transitions. [2022-03-17 18:51:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:16,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 349 [2022-03-17 18:51:16,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:16,538 INFO L225 Difference]: With dead ends: 4446 [2022-03-17 18:51:16,538 INFO L226 Difference]: Without dead ends: 4446 [2022-03-17 18:51:16,539 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:51:16,539 INFO L912 BasicCegarLoop]: 115 mSDtfsCounter, 253 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:16,539 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 330 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:16,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-03-17 18:51:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3910. [2022-03-17 18:51:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4960307298335467) internal successors, (5842), 3905 states have internal predecessors, (5842), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:16,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5846 transitions. [2022-03-17 18:51:16,576 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5846 transitions. Word has length 349 [2022-03-17 18:51:16,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:16,577 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5846 transitions. [2022-03-17 18:51:16,577 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:16,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5846 transitions. [2022-03-17 18:51:16,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-17 18:51:16,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:16,584 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:16,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 18:51:16,585 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2110568493, now seen corresponding path program 1 times [2022-03-17 18:51:16,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:16,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148288635] [2022-03-17 18:51:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:16,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:16,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-17 18:51:16,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:16,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148288635] [2022-03-17 18:51:16,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148288635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:16,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:16,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:16,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027269785] [2022-03-17 18:51:16,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:16,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:16,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:16,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:16,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:16,872 INFO L87 Difference]: Start difference. First operand 3910 states and 5846 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:18,879 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 [] [2022-03-17 18:51:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:19,290 INFO L93 Difference]: Finished difference Result 4152 states and 6156 transitions. [2022-03-17 18:51:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:19,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 349 [2022-03-17 18:51:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:19,294 INFO L225 Difference]: With dead ends: 4152 [2022-03-17 18:51:19,294 INFO L226 Difference]: Without dead ends: 4152 [2022-03-17 18:51:19,295 INFO L911 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 [2022-03-17 18:51:19,295 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 56 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:19,295 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 592 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:19,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2022-03-17 18:51:19,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3910. [2022-03-17 18:51:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4939820742637644) internal successors, (5834), 3905 states have internal predecessors, (5834), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5838 transitions. [2022-03-17 18:51:19,326 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5838 transitions. Word has length 349 [2022-03-17 18:51:19,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:19,326 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5838 transitions. [2022-03-17 18:51:19,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:19,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5838 transitions. [2022-03-17 18:51:19,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-03-17 18:51:19,330 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:19,330 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:19,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 18:51:19,331 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:19,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:19,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1878023735, now seen corresponding path program 1 times [2022-03-17 18:51:19,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:19,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848973876] [2022-03-17 18:51:19,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:19,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:19,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-17 18:51:19,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:19,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848973876] [2022-03-17 18:51:19,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848973876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:19,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:19,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:19,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314573488] [2022-03-17 18:51:19,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:19,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:19,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:19,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:19,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:19,486 INFO L87 Difference]: Start difference. First operand 3910 states and 5838 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:21,494 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 [] [2022-03-17 18:51:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:21,907 INFO L93 Difference]: Finished difference Result 4088 states and 6044 transitions. [2022-03-17 18:51:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:21,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2022-03-17 18:51:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:21,912 INFO L225 Difference]: With dead ends: 4088 [2022-03-17 18:51:21,912 INFO L226 Difference]: Without dead ends: 4088 [2022-03-17 18:51:21,912 INFO L911 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 [2022-03-17 18:51:21,913 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 45 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:21,913 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 582 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:21,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-03-17 18:51:21,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3910. [2022-03-17 18:51:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.491933418693982) internal successors, (5826), 3905 states have internal predecessors, (5826), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5830 transitions. [2022-03-17 18:51:21,950 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5830 transitions. Word has length 350 [2022-03-17 18:51:21,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:21,951 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5830 transitions. [2022-03-17 18:51:21,951 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5830 transitions. [2022-03-17 18:51:21,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-03-17 18:51:21,955 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:21,955 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:21,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 18:51:21,955 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:21,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:21,955 INFO L85 PathProgramCache]: Analyzing trace with hash 512398985, now seen corresponding path program 1 times [2022-03-17 18:51:21,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:21,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232339374] [2022-03-17 18:51:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:21,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 710 proven. 82 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-03-17 18:51:22,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232339374] [2022-03-17 18:51:22,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232339374] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:51:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165115126] [2022-03-17 18:51:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:22,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:51:22,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:51:22,143 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) [2022-03-17 18:51:22,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 18:51:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:23,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-17 18:51:23,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:51:23,195 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:51:23,196 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 [2022-03-17 18:51:23,264 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:51:23,264 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 [2022-03-17 18:51:23,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:51:23,517 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:51:23,517 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 [2022-03-17 18:51:23,607 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 [2022-03-17 18:51:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 682 proven. 126 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-17 18:51:23,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:51:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-03-17 18:51:24,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165115126] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:51:24,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:51:24,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-03-17 18:51:24,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185455441] [2022-03-17 18:51:24,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:24,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:51:24,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:24,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:51:24,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:51:24,203 INFO L87 Difference]: Start difference. First operand 3910 states and 5830 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2022-03-17 18:51:26,209 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 [] [2022-03-17 18:51:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:26,475 INFO L93 Difference]: Finished difference Result 4716 states and 6951 transitions. [2022-03-17 18:51:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:51:26,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 352 [2022-03-17 18:51:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:26,479 INFO L225 Difference]: With dead ends: 4716 [2022-03-17 18:51:26,479 INFO L226 Difference]: Without dead ends: 4716 [2022-03-17 18:51:26,480 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-17 18:51:26,480 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 108 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:26,480 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 535 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:51:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2022-03-17 18:51:26,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4234. [2022-03-17 18:51:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.4913691179947979) internal successors, (6307), 4229 states have internal predecessors, (6307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6311 transitions. [2022-03-17 18:51:26,512 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6311 transitions. Word has length 352 [2022-03-17 18:51:26,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:26,513 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6311 transitions. [2022-03-17 18:51:26,513 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2022-03-17 18:51:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6311 transitions. [2022-03-17 18:51:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-17 18:51:26,517 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:26,517 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:26,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 18:51:26,730 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-17 18:51:26,730 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:26,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:26,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1647130387, now seen corresponding path program 1 times [2022-03-17 18:51:26,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:26,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218240846] [2022-03-17 18:51:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-17 18:51:26,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:26,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218240846] [2022-03-17 18:51:26,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218240846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:26,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:26,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:26,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303361027] [2022-03-17 18:51:26,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:26,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:26,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:26,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:26,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:26,922 INFO L87 Difference]: Start difference. First operand 4234 states and 6311 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:28,928 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 [] [2022-03-17 18:51:29,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:29,318 INFO L93 Difference]: Finished difference Result 4380 states and 6475 transitions. [2022-03-17 18:51:29,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:29,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 353 [2022-03-17 18:51:29,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:29,322 INFO L225 Difference]: With dead ends: 4380 [2022-03-17 18:51:29,322 INFO L226 Difference]: Without dead ends: 4380 [2022-03-17 18:51:29,322 INFO L911 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 [2022-03-17 18:51:29,322 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 46 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:29,322 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 574 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:29,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-03-17 18:51:29,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4234. [2022-03-17 18:51:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.489477417829274) internal successors, (6299), 4229 states have internal predecessors, (6299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:29,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6303 transitions. [2022-03-17 18:51:29,357 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6303 transitions. Word has length 353 [2022-03-17 18:51:29,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:29,357 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6303 transitions. [2022-03-17 18:51:29,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6303 transitions. [2022-03-17 18:51:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-17 18:51:29,362 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:29,362 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:29,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 18:51:29,362 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:29,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:29,363 INFO L85 PathProgramCache]: Analyzing trace with hash -947640423, now seen corresponding path program 1 times [2022-03-17 18:51:29,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:29,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46494197] [2022-03-17 18:51:29,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:29,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:29,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-03-17 18:51:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:29,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46494197] [2022-03-17 18:51:29,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46494197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:29,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:29,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:29,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686061535] [2022-03-17 18:51:29,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:29,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:29,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:29,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:29,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:29,531 INFO L87 Difference]: Start difference. First operand 4234 states and 6303 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:31,539 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 [] [2022-03-17 18:51:31,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:31,905 INFO L93 Difference]: Finished difference Result 4596 states and 6801 transitions. [2022-03-17 18:51:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:31,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 353 [2022-03-17 18:51:31,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:31,909 INFO L225 Difference]: With dead ends: 4596 [2022-03-17 18:51:31,909 INFO L226 Difference]: Without dead ends: 4596 [2022-03-17 18:51:31,909 INFO L911 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 [2022-03-17 18:51:31,910 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:31,910 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 578 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:31,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-03-17 18:51:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4442. [2022-03-17 18:51:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4442 states, 4437 states have (on average 1.4881676808654496) internal successors, (6603), 4437 states have internal predecessors, (6603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 6607 transitions. [2022-03-17 18:51:31,942 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 6607 transitions. Word has length 353 [2022-03-17 18:51:31,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:31,942 INFO L478 AbstractCegarLoop]: Abstraction has 4442 states and 6607 transitions. [2022-03-17 18:51:31,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 6607 transitions. [2022-03-17 18:51:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-03-17 18:51:31,947 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:31,947 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2022-03-17 18:51:31,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 18:51:31,947 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1606404644, now seen corresponding path program 1 times [2022-03-17 18:51:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:31,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632666516] [2022-03-17 18:51:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:31,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-03-17 18:51:32,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:32,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632666516] [2022-03-17 18:51:32,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632666516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:32,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:32,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:32,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055719509] [2022-03-17 18:51:32,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:32,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:32,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:32,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:32,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:32,111 INFO L87 Difference]: Start difference. First operand 4442 states and 6607 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:34,127 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 [] [2022-03-17 18:51:34,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:34,533 INFO L93 Difference]: Finished difference Result 4884 states and 7241 transitions. [2022-03-17 18:51:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:34,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 359 [2022-03-17 18:51:34,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:34,538 INFO L225 Difference]: With dead ends: 4884 [2022-03-17 18:51:34,538 INFO L226 Difference]: Without dead ends: 4884 [2022-03-17 18:51:34,538 INFO L911 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 [2022-03-17 18:51:34,538 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 46 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:34,538 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 590 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:34,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2022-03-17 18:51:34,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4666. [2022-03-17 18:51:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.488736322677537) internal successors, (6939), 4661 states have internal predecessors, (6939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:34,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6943 transitions. [2022-03-17 18:51:34,589 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6943 transitions. Word has length 359 [2022-03-17 18:51:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:34,589 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6943 transitions. [2022-03-17 18:51:34,589 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6943 transitions. [2022-03-17 18:51:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-17 18:51:34,594 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:34,594 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:34,594 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-17 18:51:34,594 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:34,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:34,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1596942315, now seen corresponding path program 1 times [2022-03-17 18:51:34,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:34,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352213540] [2022-03-17 18:51:34,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:34,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-03-17 18:51:35,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:35,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352213540] [2022-03-17 18:51:35,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352213540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:35,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:35,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 18:51:35,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003176000] [2022-03-17 18:51:35,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:35,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:51:35,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:35,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:51:35,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:51:35,053 INFO L87 Difference]: Start difference. First operand 4666 states and 6943 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:37,071 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 [] [2022-03-17 18:51:37,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:37,482 INFO L93 Difference]: Finished difference Result 4674 states and 6953 transitions. [2022-03-17 18:51:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:51:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 360 [2022-03-17 18:51:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:37,486 INFO L225 Difference]: With dead ends: 4674 [2022-03-17 18:51:37,486 INFO L226 Difference]: Without dead ends: 4666 [2022-03-17 18:51:37,486 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:51:37,486 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:37,487 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2022-03-17 18:51:37,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4666. [2022-03-17 18:51:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.4885217764428234) internal successors, (6938), 4661 states have internal predecessors, (6938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6942 transitions. [2022-03-17 18:51:37,525 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6942 transitions. Word has length 360 [2022-03-17 18:51:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:37,525 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6942 transitions. [2022-03-17 18:51:37,525 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6942 transitions. [2022-03-17 18:51:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-17 18:51:37,530 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:37,530 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:37,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-17 18:51:37,530 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash -870525942, now seen corresponding path program 1 times [2022-03-17 18:51:37,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:37,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105233076] [2022-03-17 18:51:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 576 proven. 92 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-03-17 18:51:38,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:38,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105233076] [2022-03-17 18:51:38,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105233076] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:51:38,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783769421] [2022-03-17 18:51:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:38,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:51:38,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:51:38,356 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) [2022-03-17 18:51:38,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 18:51:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:39,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 131 conjunts are in the unsatisfiable core [2022-03-17 18:51:39,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:51:39,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:39,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:51:39,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:39,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:39,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:39,713 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 18:51:39,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 18:51:39,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:39,750 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 18:51:39,750 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 1 case distinctions, treesize of input 33 treesize of output 26 [2022-03-17 18:51:39,754 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 [2022-03-17 18:51:39,759 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 [2022-03-17 18:51:39,972 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-17 18:51:39,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-17 18:51:39,995 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-17 18:51:39,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-17 18:51:40,014 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-17 18:51:40,014 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 22 treesize of output 31 [2022-03-17 18:51:40,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-17 18:51:40,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-17 18:51:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-17 18:51:40,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,526 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 48 treesize of output 47 [2022-03-17 18:51:40,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,530 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 48 treesize of output 47 [2022-03-17 18:51:40,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,534 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 48 treesize of output 47 [2022-03-17 18:51:40,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,627 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 18:51:40,627 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 103 treesize of output 110 [2022-03-17 18:51:40,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,663 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 18:51:40,663 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 100 treesize of output 107 [2022-03-17 18:51:40,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,694 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-17 18:51:40,694 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 32 treesize of output 54 [2022-03-17 18:51:40,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,861 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 213 treesize of output 185 [2022-03-17 18:51:40,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,868 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 213 treesize of output 185 [2022-03-17 18:51:40,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:40,890 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-17 18:51:40,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 213 treesize of output 231 [2022-03-17 18:51:43,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,203 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 266 treesize of output 226 [2022-03-17 18:51:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,251 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-03-17 18:51:43,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 262 treesize of output 260 [2022-03-17 18:51:43,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:43,260 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 270 treesize of output 230 [2022-03-17 18:51:45,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:45,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:45,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:45,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:45,744 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-03-17 18:51:45,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 247 treesize of output 259 [2022-03-17 18:51:46,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-03-17 18:51:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-03-17 18:51:46,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,170 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 115 treesize of output 99 [2022-03-17 18:51:46,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:46,177 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 117 treesize of output 101 [2022-03-17 18:51:47,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,235 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 127 [2022-03-17 18:51:47,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,264 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-03-17 18:51:47,265 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 123 treesize of output 104 [2022-03-17 18:51:47,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,388 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 120 treesize of output 108 [2022-03-17 18:51:47,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:47,395 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 122 treesize of output 110 [2022-03-17 18:51:48,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:48,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:48,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:48,853 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 115 treesize of output 99 [2022-03-17 18:51:48,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:48,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:48,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:48,859 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 117 treesize of output 101 [2022-03-17 18:51:48,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:48,977 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-03-17 18:51:48,978 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 195 treesize of output 162 [2022-03-17 18:51:48,983 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 31 treesize of output 21 [2022-03-17 18:51:48,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:49,008 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-03-17 18:51:49,008 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 3 case distinctions, treesize of input 187 treesize of output 166 [2022-03-17 18:51:49,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:49,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:49,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:49,120 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 193 treesize of output 159 [2022-03-17 18:51:49,140 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-17 18:51:49,140 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 35 treesize of output 34 [2022-03-17 18:51:49,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:49,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:49,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:49,154 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 18:51:49,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 159 [2022-03-17 18:51:50,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:50,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:50,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:50,816 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 214 treesize of output 174 [2022-03-17 18:51:50,833 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-17 18:51:50,834 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 56 treesize of output 37 [2022-03-17 18:51:50,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:50,841 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 18:51:50,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 153 [2022-03-17 18:51:51,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:51,324 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 18:51:51,324 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 82 [2022-03-17 18:52:06,642 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-03-17 18:52:06,642 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 30 treesize of output 10 [2022-03-17 18:52:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 221 proven. 883 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-17 18:52:06,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:52:06,969 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 596 treesize of output 522