/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:59:29,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:59:29,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:59:29,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:59:29,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:59:29,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:59:29,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:59:29,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:59:29,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:59:29,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:59:29,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:59:29,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:59:29,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:59:29,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:59:29,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:59:29,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:59:29,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:59:29,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:59:29,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:59:29,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:59:29,922 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:59:29,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:59:29,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:59:29,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:59:29,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:59:29,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:59:29,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:59:29,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:59:29,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:59:29,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:59:29,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 02:59:29,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 02:59:29,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 02:59:29,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 02:59:29,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 02:59:29,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 02:59:29,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 02:59:29,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 02:59:29,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 02:59:29,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:59:29,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:59:29,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:59:29,938 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 02:59:29,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:59:29,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:59:29,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:59:29,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:59:29,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:59:29,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:59:29,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:59:29,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:59:29,962 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:59:29,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:59:29,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:59:29,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:59:29,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:59:29,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:59:29,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:59:29,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:59:29,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:59:29,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:59:29,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:59:29,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:59:29,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:59:29,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:59:29,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:59:29,966 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:59:29,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:59:29,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:59:29,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:59:30,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:59:30,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:59:30,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:59:30,168 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:59:30,168 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:59:30,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-03-20 02:59:30,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5248811c0/4fa1799651ec452fb9240ffa6dada69f/FLAG6de2055b2 [2022-03-20 02:59:30,664 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:59:30,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-03-20 02:59:30,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5248811c0/4fa1799651ec452fb9240ffa6dada69f/FLAG6de2055b2 [2022-03-20 02:59:30,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5248811c0/4fa1799651ec452fb9240ffa6dada69f [2022-03-20 02:59:30,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:59:30,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:59:30,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:59:30,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:59:30,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:59:30,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:59:30" (1/1) ... [2022-03-20 02:59:30,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a28cad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:30, skipping insertion in model container [2022-03-20 02:59:30,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:59:30" (1/1) ... [2022-03-20 02:59:30,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:59:30,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:59:31,053 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.12.i.cil-2.c[75436,75449] [2022-03-20 02:59:31,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:59:31,074 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:59:31,187 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.12.i.cil-2.c[75436,75449] [2022-03-20 02:59:31,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:59:31,204 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:59:31,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31 WrapperNode [2022-03-20 02:59:31,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:59:31,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:59:31,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:59:31,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:59:31,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:59:31,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:59:31,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:59:31,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:59:31,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (1/1) ... [2022-03-20 02:59:31,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:59:31,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:59:31,319 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) [2022-03-20 02:59:31,338 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 [2022-03-20 02:59:31,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:59:31,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:59:31,355 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:59:31,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:59:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:59:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:59:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:59:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:59:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:59:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:59:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:59:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:59:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:59:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:59:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:59:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:59:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:59:31,528 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:59:31,529 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:59:32,129 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:59:32,525 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:59:32,526 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:59:32,539 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:59:32,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:59:32,548 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:59:32,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:59:32 BoogieIcfgContainer [2022-03-20 02:59:32,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:59:32,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:59:32,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:59:32,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:59:32,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:59:30" (1/3) ... [2022-03-20 02:59:32,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487f2c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:59:32, skipping insertion in model container [2022-03-20 02:59:32,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:59:31" (2/3) ... [2022-03-20 02:59:32,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487f2c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:59:32, skipping insertion in model container [2022-03-20 02:59:32,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:59:32" (3/3) ... [2022-03-20 02:59:32,557 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-2.c [2022-03-20 02:59:32,560 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:59:32,560 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:59:32,595 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:59:32,600 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2022-03-20 02:59:32,601 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:59:32,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 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) [2022-03-20 02:59:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 02:59:32,636 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:32,637 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:32,637 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:32,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1074581461, now seen corresponding path program 1 times [2022-03-20 02:59:32,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:32,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247206513] [2022-03-20 02:59:32,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:32,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:33,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:33,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247206513] [2022-03-20 02:59:33,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247206513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:33,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:33,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:33,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222130170] [2022-03-20 02:59:33,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:33,071 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:33,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:33,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:33,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:33,090 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:34,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:34,891 INFO L93 Difference]: Finished difference Result 440 states and 746 transitions. [2022-03-20 02:59:34,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:34,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-20 02:59:34,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:34,903 INFO L225 Difference]: With dead ends: 440 [2022-03-20 02:59:34,904 INFO L226 Difference]: Without dead ends: 268 [2022-03-20 02:59:34,906 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:34,908 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 162 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:34,909 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:59:34,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-03-20 02:59:34,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 185. [2022-03-20 02:59:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-03-20 02:59:34,965 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 49 [2022-03-20 02:59:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:34,966 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-03-20 02:59:34,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-03-20 02:59:34,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 02:59:34,972 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:34,972 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:34,972 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:59:34,973 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:34,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:34,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1287983627, now seen corresponding path program 1 times [2022-03-20 02:59:34,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:34,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680033499] [2022-03-20 02:59:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:34,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:35,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:35,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:35,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680033499] [2022-03-20 02:59:35,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680033499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:35,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:35,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:35,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721463664] [2022-03-20 02:59:35,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:35,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:35,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:35,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:35,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:35,183 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:36,651 INFO L93 Difference]: Finished difference Result 383 states and 610 transitions. [2022-03-20 02:59:36,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:36,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 02:59:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:36,654 INFO L225 Difference]: With dead ends: 383 [2022-03-20 02:59:36,654 INFO L226 Difference]: Without dead ends: 213 [2022-03-20 02:59:36,655 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:36,656 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:36,656 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 02:59:36,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-20 02:59:36,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-20 02:59:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.617801047120419) internal successors, (309), 191 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 313 transitions. [2022-03-20 02:59:36,664 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 313 transitions. Word has length 50 [2022-03-20 02:59:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:36,664 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 313 transitions. [2022-03-20 02:59:36,664 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 313 transitions. [2022-03-20 02:59:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 02:59:36,665 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:36,665 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:36,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:59:36,666 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash 41561780, now seen corresponding path program 1 times [2022-03-20 02:59:36,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:36,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914258133] [2022-03-20 02:59:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:36,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:36,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:36,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914258133] [2022-03-20 02:59:36,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914258133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:36,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:36,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:36,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092295180] [2022-03-20 02:59:36,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:36,835 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:36,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:36,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:36,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:36,836 INFO L87 Difference]: Start difference. First operand 196 states and 313 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:38,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:39,651 INFO L93 Difference]: Finished difference Result 383 states and 609 transitions. [2022-03-20 02:59:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:39,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 02:59:39,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:39,653 INFO L225 Difference]: With dead ends: 383 [2022-03-20 02:59:39,653 INFO L226 Difference]: Without dead ends: 213 [2022-03-20 02:59:39,654 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:39,654 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:39,655 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:59:39,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-20 02:59:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-20 02:59:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.612565445026178) internal successors, (308), 191 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2022-03-20 02:59:39,662 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 63 [2022-03-20 02:59:39,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:39,662 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2022-03-20 02:59:39,662 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2022-03-20 02:59:39,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:59:39,664 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:39,664 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:39,664 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:59:39,664 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:39,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:39,664 INFO L85 PathProgramCache]: Analyzing trace with hash -674118940, now seen corresponding path program 1 times [2022-03-20 02:59:39,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:39,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872088361] [2022-03-20 02:59:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:39,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:39,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:39,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:39,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872088361] [2022-03-20 02:59:39,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872088361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:39,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:39,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:39,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970256453] [2022-03-20 02:59:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:39,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:39,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:39,774 INFO L87 Difference]: Start difference. First operand 196 states and 312 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:41,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:41,223 INFO L93 Difference]: Finished difference Result 382 states and 607 transitions. [2022-03-20 02:59:41,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:41,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:59:41,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:41,225 INFO L225 Difference]: With dead ends: 382 [2022-03-20 02:59:41,225 INFO L226 Difference]: Without dead ends: 212 [2022-03-20 02:59:41,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:41,228 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:41,228 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 02:59:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-20 02:59:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2022-03-20 02:59:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.6073298429319371) internal successors, (307), 191 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 311 transitions. [2022-03-20 02:59:41,235 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 311 transitions. Word has length 64 [2022-03-20 02:59:41,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:41,235 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 311 transitions. [2022-03-20 02:59:41,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 311 transitions. [2022-03-20 02:59:41,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:59:41,236 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:41,236 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:41,237 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:59:41,237 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:41,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:41,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1212784504, now seen corresponding path program 1 times [2022-03-20 02:59:41,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:41,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659182969] [2022-03-20 02:59:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:41,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:41,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:41,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659182969] [2022-03-20 02:59:41,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659182969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:41,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:41,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:41,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612738325] [2022-03-20 02:59:41,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:41,357 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:41,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:41,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:41,358 INFO L87 Difference]: Start difference. First operand 196 states and 311 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:43,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:43,245 INFO L93 Difference]: Finished difference Result 488 states and 778 transitions. [2022-03-20 02:59:43,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:43,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:59:43,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:43,247 INFO L225 Difference]: With dead ends: 488 [2022-03-20 02:59:43,247 INFO L226 Difference]: Without dead ends: 318 [2022-03-20 02:59:43,247 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:43,248 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 157 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:43,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 02:59:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-03-20 02:59:43,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 208. [2022-03-20 02:59:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-03-20 02:59:43,258 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 64 [2022-03-20 02:59:43,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:43,258 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-03-20 02:59:43,258 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:43,259 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-03-20 02:59:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:59:43,260 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:43,260 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:43,260 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:59:43,260 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:43,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:43,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1967175953, now seen corresponding path program 1 times [2022-03-20 02:59:43,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:43,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775127135] [2022-03-20 02:59:43,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:43,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:43,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:43,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775127135] [2022-03-20 02:59:43,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775127135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:43,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:43,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:43,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130419564] [2022-03-20 02:59:43,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:43,379 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:43,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:43,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:43,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:43,380 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:46,385 INFO L93 Difference]: Finished difference Result 500 states and 792 transitions. [2022-03-20 02:59:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:46,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:59:46,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:46,386 INFO L225 Difference]: With dead ends: 500 [2022-03-20 02:59:46,386 INFO L226 Difference]: Without dead ends: 318 [2022-03-20 02:59:46,387 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:46,387 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:46,388 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:59:46,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-03-20 02:59:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 213. [2022-03-20 02:59:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5865384615384615) internal successors, (330), 208 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 334 transitions. [2022-03-20 02:59:46,395 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 334 transitions. Word has length 64 [2022-03-20 02:59:46,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:46,395 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 334 transitions. [2022-03-20 02:59:46,395 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:46,396 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 334 transitions. [2022-03-20 02:59:46,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:59:46,397 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:46,397 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:46,397 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:59:46,397 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1899615952, now seen corresponding path program 1 times [2022-03-20 02:59:46,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:46,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761558373] [2022-03-20 02:59:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:46,510 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:46,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:46,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761558373] [2022-03-20 02:59:46,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761558373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:46,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:46,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:46,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050964776] [2022-03-20 02:59:46,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:46,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:46,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:46,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:46,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:46,513 INFO L87 Difference]: Start difference. First operand 213 states and 334 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:49,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:49,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:49,742 INFO L93 Difference]: Finished difference Result 504 states and 796 transitions. [2022-03-20 02:59:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:49,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:59:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:49,744 INFO L225 Difference]: With dead ends: 504 [2022-03-20 02:59:49,744 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 02:59:49,744 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:49,745 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 149 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:49,745 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:59:49,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 02:59:49,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 214. [2022-03-20 02:59:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5741626794258374) internal successors, (329), 209 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 333 transitions. [2022-03-20 02:59:49,751 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 333 transitions. Word has length 64 [2022-03-20 02:59:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:49,751 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 333 transitions. [2022-03-20 02:59:49,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:49,751 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 333 transitions. [2022-03-20 02:59:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 02:59:49,752 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:49,752 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:49,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:59:49,752 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:49,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:49,752 INFO L85 PathProgramCache]: Analyzing trace with hash -615987875, now seen corresponding path program 1 times [2022-03-20 02:59:49,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:49,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384191889] [2022-03-20 02:59:49,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:49,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:49,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:49,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:49,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384191889] [2022-03-20 02:59:49,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384191889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:49,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:49,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:49,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229289435] [2022-03-20 02:59:49,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:49,864 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:49,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:49,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:49,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:49,865 INFO L87 Difference]: Start difference. First operand 214 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:51,731 INFO L93 Difference]: Finished difference Result 505 states and 793 transitions. [2022-03-20 02:59:51,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:51,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 02:59:51,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:51,733 INFO L225 Difference]: With dead ends: 505 [2022-03-20 02:59:51,733 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 02:59:51,734 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:51,734 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 153 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:51,734 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:59:51,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 02:59:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 214. [2022-03-20 02:59:51,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5598086124401913) internal successors, (326), 209 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:51,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 330 transitions. [2022-03-20 02:59:51,739 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 330 transitions. Word has length 65 [2022-03-20 02:59:51,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:51,739 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 330 transitions. [2022-03-20 02:59:51,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 330 transitions. [2022-03-20 02:59:51,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:59:51,740 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:51,740 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:51,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:59:51,741 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:51,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash -208594083, now seen corresponding path program 1 times [2022-03-20 02:59:51,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:51,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886859733] [2022-03-20 02:59:51,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:51,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:51,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:51,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886859733] [2022-03-20 02:59:51,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886859733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:51,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:51,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:51,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113890123] [2022-03-20 02:59:51,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:51,825 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:51,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:51,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:51,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:51,826 INFO L87 Difference]: Start difference. First operand 214 states and 330 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:54,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:54,727 INFO L93 Difference]: Finished difference Result 415 states and 645 transitions. [2022-03-20 02:59:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:54,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 02:59:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:54,729 INFO L225 Difference]: With dead ends: 415 [2022-03-20 02:59:54,729 INFO L226 Difference]: Without dead ends: 227 [2022-03-20 02:59:54,729 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:54,730 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 20 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:54,730 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:59:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-20 02:59:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-03-20 02:59:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.555023923444976) internal successors, (325), 209 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 329 transitions. [2022-03-20 02:59:54,735 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 329 transitions. Word has length 66 [2022-03-20 02:59:54,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:54,735 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 329 transitions. [2022-03-20 02:59:54,735 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:54,735 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 329 transitions. [2022-03-20 02:59:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:59:54,736 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:54,736 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:54,736 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:59:54,736 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:54,736 INFO L85 PathProgramCache]: Analyzing trace with hash 800474274, now seen corresponding path program 1 times [2022-03-20 02:59:54,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:54,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803708828] [2022-03-20 02:59:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:54,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:54,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803708828] [2022-03-20 02:59:54,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803708828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:54,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:54,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:54,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056049226] [2022-03-20 02:59:54,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:54,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:54,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:54,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:54,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:54,826 INFO L87 Difference]: Start difference. First operand 214 states and 329 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) [2022-03-20 02:59:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:56,668 INFO L93 Difference]: Finished difference Result 505 states and 787 transitions. [2022-03-20 02:59:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:56,669 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 [2022-03-20 02:59:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:56,670 INFO L225 Difference]: With dead ends: 505 [2022-03-20 02:59:56,670 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 02:59:56,671 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:56,671 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:56,671 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:59:56,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 02:59:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 214. [2022-03-20 02:59:56,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5406698564593302) internal successors, (322), 209 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 326 transitions. [2022-03-20 02:59:56,676 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 326 transitions. Word has length 67 [2022-03-20 02:59:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:56,677 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 326 transitions. [2022-03-20 02:59:56,677 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) [2022-03-20 02:59:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 326 transitions. [2022-03-20 02:59:56,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:59:56,677 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:56,677 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:56,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:59:56,678 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:56,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:56,678 INFO L85 PathProgramCache]: Analyzing trace with hash -260095797, now seen corresponding path program 1 times [2022-03-20 02:59:56,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:56,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922680449] [2022-03-20 02:59:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:56,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:59:56,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:56,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922680449] [2022-03-20 02:59:56,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922680449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:56,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:56,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:56,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51303830] [2022-03-20 02:59:56,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:56,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:56,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:56,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:56,790 INFO L87 Difference]: Start difference. First operand 214 states and 326 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) [2022-03-20 02:59:59,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:01,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:01,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:01,781 INFO L93 Difference]: Finished difference Result 444 states and 682 transitions. [2022-03-20 03:00:01,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:01,782 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 [2022-03-20 03:00:01,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:01,783 INFO L225 Difference]: With dead ends: 444 [2022-03-20 03:00:01,783 INFO L226 Difference]: Without dead ends: 256 [2022-03-20 03:00:01,784 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:01,784 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 29 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:01,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 400 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 03:00:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-20 03:00:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2022-03-20 03:00:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5367965367965368) internal successors, (355), 231 states have internal predecessors, (355), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 359 transitions. [2022-03-20 03:00:01,789 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 359 transitions. Word has length 67 [2022-03-20 03:00:01,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:01,789 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 359 transitions. [2022-03-20 03:00:01,789 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) [2022-03-20 03:00:01,789 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 359 transitions. [2022-03-20 03:00:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 03:00:01,790 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:01,790 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:01,790 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 03:00:01,790 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:01,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1303488414, now seen corresponding path program 1 times [2022-03-20 03:00:01,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:01,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754615810] [2022-03-20 03:00:01,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:01,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:01,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:00:01,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:01,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754615810] [2022-03-20 03:00:01,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754615810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:01,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:01,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:01,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021569658] [2022-03-20 03:00:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:01,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:01,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:01,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:01,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:01,878 INFO L87 Difference]: Start difference. First operand 236 states and 359 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:03,422 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 [] [2022-03-20 03:00:04,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:04,771 INFO L93 Difference]: Finished difference Result 464 states and 712 transitions. [2022-03-20 03:00:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:04,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-03-20 03:00:04,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:04,772 INFO L225 Difference]: With dead ends: 464 [2022-03-20 03:00:04,772 INFO L226 Difference]: Without dead ends: 254 [2022-03-20 03:00:04,773 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:04,773 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 34 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:04,773 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 527 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:00:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-03-20 03:00:04,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 236. [2022-03-20 03:00:04,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5324675324675325) internal successors, (354), 231 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 358 transitions. [2022-03-20 03:00:04,780 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 358 transitions. Word has length 80 [2022-03-20 03:00:04,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:04,781 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 358 transitions. [2022-03-20 03:00:04,781 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:04,781 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 358 transitions. [2022-03-20 03:00:04,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 03:00:04,781 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:04,782 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:04,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 03:00:04,782 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:04,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:04,782 INFO L85 PathProgramCache]: Analyzing trace with hash -209098950, now seen corresponding path program 1 times [2022-03-20 03:00:04,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:04,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416763519] [2022-03-20 03:00:04,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:04,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 03:00:04,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:04,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416763519] [2022-03-20 03:00:04,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416763519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:04,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:04,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:04,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170912635] [2022-03-20 03:00:04,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:04,886 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:04,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:04,887 INFO L87 Difference]: Start difference. First operand 236 states and 358 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:07,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:07,314 INFO L93 Difference]: Finished difference Result 475 states and 726 transitions. [2022-03-20 03:00:07,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:07,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-20 03:00:07,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:07,316 INFO L225 Difference]: With dead ends: 475 [2022-03-20 03:00:07,316 INFO L226 Difference]: Without dead ends: 265 [2022-03-20 03:00:07,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:07,318 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 19 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:07,318 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 586 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:00:07,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-20 03:00:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 252. [2022-03-20 03:00:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5263157894736843) internal successors, (377), 247 states have internal predecessors, (377), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:07,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 381 transitions. [2022-03-20 03:00:07,323 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 381 transitions. Word has length 81 [2022-03-20 03:00:07,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:07,324 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 381 transitions. [2022-03-20 03:00:07,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:07,324 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 381 transitions. [2022-03-20 03:00:07,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 03:00:07,324 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:07,325 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:07,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 03:00:07,325 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:07,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:07,325 INFO L85 PathProgramCache]: Analyzing trace with hash -57648593, now seen corresponding path program 1 times [2022-03-20 03:00:07,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:07,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465630291] [2022-03-20 03:00:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:07,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:07,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 03:00:07,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:07,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465630291] [2022-03-20 03:00:07,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465630291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:07,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:07,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 03:00:07,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655348904] [2022-03-20 03:00:07,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:07,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 03:00:07,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:07,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 03:00:07,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:07,453 INFO L87 Difference]: Start difference. First operand 252 states and 381 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:09,726 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 [] [2022-03-20 03:00:12,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:12,496 INFO L93 Difference]: Finished difference Result 487 states and 744 transitions. [2022-03-20 03:00:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 03:00:12,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 03:00:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:12,498 INFO L225 Difference]: With dead ends: 487 [2022-03-20 03:00:12,498 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 03:00:12,498 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:00:12,499 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:12,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 03:00:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 03:00:12,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-03-20 03:00:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.515625) internal successors, (388), 256 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 392 transitions. [2022-03-20 03:00:12,504 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 392 transitions. Word has length 82 [2022-03-20 03:00:12,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:12,504 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 392 transitions. [2022-03-20 03:00:12,504 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:12,504 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 392 transitions. [2022-03-20 03:00:12,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 03:00:12,505 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:12,505 INFO L499 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] [2022-03-20 03:00:12,505 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 03:00:12,505 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:12,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:12,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2098994774, now seen corresponding path program 1 times [2022-03-20 03:00:12,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:12,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229807046] [2022-03-20 03:00:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:12,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:12,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:12,593 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:00:12,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:12,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229807046] [2022-03-20 03:00:12,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229807046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:12,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:12,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:12,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887082163] [2022-03-20 03:00:12,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:12,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:12,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:12,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:12,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:12,594 INFO L87 Difference]: Start difference. First operand 261 states and 392 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) [2022-03-20 03:00:14,693 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 [] [2022-03-20 03:00:16,658 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 [] [2022-03-20 03:00:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:17,014 INFO L93 Difference]: Finished difference Result 513 states and 776 transitions. [2022-03-20 03:00:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:17,030 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 [2022-03-20 03:00:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:17,031 INFO L225 Difference]: With dead ends: 513 [2022-03-20 03:00:17,031 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 03:00:17,033 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:17,034 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 34 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:17,035 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 529 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 03:00:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 03:00:17,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-20 03:00:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.51171875) internal successors, (387), 256 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 391 transitions. [2022-03-20 03:00:17,043 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 391 transitions. Word has length 84 [2022-03-20 03:00:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:17,043 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 391 transitions. [2022-03-20 03:00:17,043 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) [2022-03-20 03:00:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 391 transitions. [2022-03-20 03:00:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-20 03:00:17,044 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:17,044 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:17,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 03:00:17,044 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:17,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:17,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1885346315, now seen corresponding path program 1 times [2022-03-20 03:00:17,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:17,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652879478] [2022-03-20 03:00:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:17,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:17,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:00:17,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:17,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652879478] [2022-03-20 03:00:17,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652879478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:17,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:17,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619828436] [2022-03-20 03:00:17,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:17,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:17,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:17,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:17,147 INFO L87 Difference]: Start difference. First operand 261 states and 391 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:20,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:20,032 INFO L93 Difference]: Finished difference Result 608 states and 923 transitions. [2022-03-20 03:00:20,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-20 03:00:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:20,034 INFO L225 Difference]: With dead ends: 608 [2022-03-20 03:00:20,034 INFO L226 Difference]: Without dead ends: 373 [2022-03-20 03:00:20,035 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:20,036 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 125 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:20,036 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:00:20,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-03-20 03:00:20,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 283. [2022-03-20 03:00:20,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5467625899280575) internal successors, (430), 278 states have internal predecessors, (430), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 434 transitions. [2022-03-20 03:00:20,042 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 434 transitions. Word has length 89 [2022-03-20 03:00:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:20,042 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 434 transitions. [2022-03-20 03:00:20,043 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:20,043 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 434 transitions. [2022-03-20 03:00:20,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 03:00:20,045 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:20,045 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:20,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 03:00:20,046 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash -537282117, now seen corresponding path program 1 times [2022-03-20 03:00:20,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:20,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574848305] [2022-03-20 03:00:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:20,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:00:20,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:20,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574848305] [2022-03-20 03:00:20,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574848305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:20,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:20,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:20,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754892381] [2022-03-20 03:00:20,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:20,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:20,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:20,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:20,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:20,153 INFO L87 Difference]: Start difference. First operand 283 states and 434 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:22,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:22,921 INFO L93 Difference]: Finished difference Result 648 states and 999 transitions. [2022-03-20 03:00:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:22,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 03:00:22,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:22,923 INFO L225 Difference]: With dead ends: 648 [2022-03-20 03:00:22,923 INFO L226 Difference]: Without dead ends: 391 [2022-03-20 03:00:22,924 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:22,924 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 93 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:22,924 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 525 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:00:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-03-20 03:00:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 317. [2022-03-20 03:00:22,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.5544871794871795) internal successors, (485), 312 states have internal predecessors, (485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 489 transitions. [2022-03-20 03:00:22,934 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 489 transitions. Word has length 117 [2022-03-20 03:00:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:22,935 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 489 transitions. [2022-03-20 03:00:22,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 489 transitions. [2022-03-20 03:00:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 03:00:22,936 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:22,936 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:22,936 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 03:00:22,936 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1029908291, now seen corresponding path program 1 times [2022-03-20 03:00:22,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:22,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524567669] [2022-03-20 03:00:22,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:22,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 03:00:23,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:23,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524567669] [2022-03-20 03:00:23,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524567669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:23,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:23,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:23,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350128383] [2022-03-20 03:00:23,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:23,028 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:23,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:23,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:23,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:23,029 INFO L87 Difference]: Start difference. First operand 317 states and 489 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:25,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:26,725 INFO L93 Difference]: Finished difference Result 666 states and 1030 transitions. [2022-03-20 03:00:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:26,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 03:00:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:26,727 INFO L225 Difference]: With dead ends: 666 [2022-03-20 03:00:26,727 INFO L226 Difference]: Without dead ends: 375 [2022-03-20 03:00:26,727 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:26,728 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 37 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:26,728 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 623 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 03:00:26,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-03-20 03:00:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 341. [2022-03-20 03:00:26,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5535714285714286) internal successors, (522), 336 states have internal predecessors, (522), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:26,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 526 transitions. [2022-03-20 03:00:26,733 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 526 transitions. Word has length 117 [2022-03-20 03:00:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:26,733 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 526 transitions. [2022-03-20 03:00:26,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:26,734 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 526 transitions. [2022-03-20 03:00:26,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 03:00:26,734 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:26,734 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:26,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 03:00:26,735 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:26,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:26,735 INFO L85 PathProgramCache]: Analyzing trace with hash -158828971, now seen corresponding path program 1 times [2022-03-20 03:00:26,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:26,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882213324] [2022-03-20 03:00:26,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:26,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 03:00:26,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:26,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882213324] [2022-03-20 03:00:26,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882213324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:26,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:26,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:26,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146267195] [2022-03-20 03:00:26,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:26,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:26,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:26,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:26,837 INFO L87 Difference]: Start difference. First operand 341 states and 526 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:29,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:30,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:31,124 INFO L93 Difference]: Finished difference Result 663 states and 1032 transitions. [2022-03-20 03:00:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:31,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 03:00:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:31,126 INFO L225 Difference]: With dead ends: 663 [2022-03-20 03:00:31,126 INFO L226 Difference]: Without dead ends: 348 [2022-03-20 03:00:31,126 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:31,127 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 30 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:31,127 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 543 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 03:00:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-20 03:00:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-03-20 03:00:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5505952380952381) internal successors, (521), 336 states have internal predecessors, (521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 525 transitions. [2022-03-20 03:00:31,134 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 525 transitions. Word has length 122 [2022-03-20 03:00:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:31,134 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 525 transitions. [2022-03-20 03:00:31,134 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 525 transitions. [2022-03-20 03:00:31,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 03:00:31,135 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:31,135 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:31,135 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 03:00:31,135 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:31,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:31,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1699899791, now seen corresponding path program 1 times [2022-03-20 03:00:31,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:31,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720796022] [2022-03-20 03:00:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:31,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:31,237 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:00:31,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:31,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720796022] [2022-03-20 03:00:31,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720796022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:31,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:31,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:31,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463243681] [2022-03-20 03:00:31,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:31,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:31,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:31,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:31,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:31,239 INFO L87 Difference]: Start difference. First operand 341 states and 525 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:32,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:35,213 INFO L93 Difference]: Finished difference Result 786 states and 1215 transitions. [2022-03-20 03:00:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:35,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 03:00:35,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:35,215 INFO L225 Difference]: With dead ends: 786 [2022-03-20 03:00:35,215 INFO L226 Difference]: Without dead ends: 471 [2022-03-20 03:00:35,216 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:35,216 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 127 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:35,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 362 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 03:00:35,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-03-20 03:00:35,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 378. [2022-03-20 03:00:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5630026809651474) internal successors, (583), 373 states have internal predecessors, (583), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:35,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 587 transitions. [2022-03-20 03:00:35,223 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 587 transitions. Word has length 123 [2022-03-20 03:00:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:35,223 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 587 transitions. [2022-03-20 03:00:35,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 587 transitions. [2022-03-20 03:00:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 03:00:35,224 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:35,225 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:35,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 03:00:35,225 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash 287066353, now seen corresponding path program 1 times [2022-03-20 03:00:35,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:35,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666543523] [2022-03-20 03:00:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:35,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:00:35,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:35,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666543523] [2022-03-20 03:00:35,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666543523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:35,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:35,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:35,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546943589] [2022-03-20 03:00:35,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:35,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:35,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:35,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:35,316 INFO L87 Difference]: Start difference. First operand 378 states and 587 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:36,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:37,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:40,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:40,201 INFO L93 Difference]: Finished difference Result 801 states and 1244 transitions. [2022-03-20 03:00:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:40,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 03:00:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:40,203 INFO L225 Difference]: With dead ends: 801 [2022-03-20 03:00:40,203 INFO L226 Difference]: Without dead ends: 449 [2022-03-20 03:00:40,203 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:40,204 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 82 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:40,204 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 489 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 03:00:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-03-20 03:00:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 384. [2022-03-20 03:00:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5646437994722955) internal successors, (593), 379 states have internal predecessors, (593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:40,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 597 transitions. [2022-03-20 03:00:40,210 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 597 transitions. Word has length 124 [2022-03-20 03:00:40,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:40,210 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 597 transitions. [2022-03-20 03:00:40,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 597 transitions. [2022-03-20 03:00:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 03:00:40,211 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:40,212 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:40,212 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 03:00:40,212 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:40,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1572502022, now seen corresponding path program 1 times [2022-03-20 03:00:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:40,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427395089] [2022-03-20 03:00:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:40,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:40,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:40,310 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:00:40,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:40,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427395089] [2022-03-20 03:00:40,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427395089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:40,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:40,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:40,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614705802] [2022-03-20 03:00:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:40,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:40,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:40,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:40,311 INFO L87 Difference]: Start difference. First operand 384 states and 597 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:42,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:42,740 INFO L93 Difference]: Finished difference Result 805 states and 1251 transitions. [2022-03-20 03:00:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:42,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-20 03:00:42,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:42,742 INFO L225 Difference]: With dead ends: 805 [2022-03-20 03:00:42,742 INFO L226 Difference]: Without dead ends: 447 [2022-03-20 03:00:42,742 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:42,743 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 103 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:42,743 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 491 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:00:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-03-20 03:00:42,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 384. [2022-03-20 03:00:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.562005277044855) internal successors, (592), 379 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:42,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 596 transitions. [2022-03-20 03:00:42,749 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 596 transitions. Word has length 130 [2022-03-20 03:00:42,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:42,749 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 596 transitions. [2022-03-20 03:00:42,749 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 596 transitions. [2022-03-20 03:00:42,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 03:00:42,750 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:42,751 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:42,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 03:00:42,751 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:42,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash -5744072, now seen corresponding path program 1 times [2022-03-20 03:00:42,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:42,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980206017] [2022-03-20 03:00:42,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:42,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:42,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:00:42,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:42,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980206017] [2022-03-20 03:00:42,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980206017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:42,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:42,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643242508] [2022-03-20 03:00:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:42,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:42,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:42,844 INFO L87 Difference]: Start difference. First operand 384 states and 596 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:45,023 INFO L93 Difference]: Finished difference Result 830 states and 1287 transitions. [2022-03-20 03:00:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:45,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-20 03:00:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:45,025 INFO L225 Difference]: With dead ends: 830 [2022-03-20 03:00:45,025 INFO L226 Difference]: Without dead ends: 472 [2022-03-20 03:00:45,026 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:45,026 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 148 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:45,027 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 366 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:00:45,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-20 03:00:45,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 384. [2022-03-20 03:00:45,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5514511873350922) internal successors, (588), 379 states have internal predecessors, (588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:45,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 592 transitions. [2022-03-20 03:00:45,033 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 592 transitions. Word has length 130 [2022-03-20 03:00:45,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:45,033 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 592 transitions. [2022-03-20 03:00:45,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:45,035 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 592 transitions. [2022-03-20 03:00:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 03:00:45,036 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:45,036 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:45,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 03:00:45,036 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:45,036 INFO L85 PathProgramCache]: Analyzing trace with hash 777583331, now seen corresponding path program 1 times [2022-03-20 03:00:45,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:45,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074360278] [2022-03-20 03:00:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:45,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:00:45,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:45,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074360278] [2022-03-20 03:00:45,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074360278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:45,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:45,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564423986] [2022-03-20 03:00:45,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:45,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:45,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:45,204 INFO L87 Difference]: Start difference. First operand 384 states and 592 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:46,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:47,805 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 [] [2022-03-20 03:00:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:48,781 INFO L93 Difference]: Finished difference Result 799 states and 1232 transitions. [2022-03-20 03:00:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:48,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 03:00:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:48,783 INFO L225 Difference]: With dead ends: 799 [2022-03-20 03:00:48,783 INFO L226 Difference]: Without dead ends: 441 [2022-03-20 03:00:48,783 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:48,784 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 69 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:48,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 499 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 03:00:48,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-03-20 03:00:48,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 387. [2022-03-20 03:00:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5471204188481675) internal successors, (591), 382 states have internal predecessors, (591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 595 transitions. [2022-03-20 03:00:48,790 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 595 transitions. Word has length 131 [2022-03-20 03:00:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:48,790 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 595 transitions. [2022-03-20 03:00:48,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 595 transitions. [2022-03-20 03:00:48,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 03:00:48,791 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:48,791 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:48,792 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 03:00:48,792 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:48,792 INFO L85 PathProgramCache]: Analyzing trace with hash 226246066, now seen corresponding path program 1 times [2022-03-20 03:00:48,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:48,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096785163] [2022-03-20 03:00:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:48,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:00:48,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096785163] [2022-03-20 03:00:48,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096785163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:48,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:48,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:48,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996036893] [2022-03-20 03:00:48,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:48,886 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:48,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:48,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:48,887 INFO L87 Difference]: Start difference. First operand 387 states and 595 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:49,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:51,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:52,475 INFO L93 Difference]: Finished difference Result 792 states and 1221 transitions. [2022-03-20 03:00:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 03:00:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:52,477 INFO L225 Difference]: With dead ends: 792 [2022-03-20 03:00:52,477 INFO L226 Difference]: Without dead ends: 431 [2022-03-20 03:00:52,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:52,478 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 94 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:52,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 501 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 03:00:52,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-03-20 03:00:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 387. [2022-03-20 03:00:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.544502617801047) internal successors, (590), 382 states have internal predecessors, (590), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 594 transitions. [2022-03-20 03:00:52,484 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 594 transitions. Word has length 134 [2022-03-20 03:00:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:52,484 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 594 transitions. [2022-03-20 03:00:52,485 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 594 transitions. [2022-03-20 03:00:52,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 03:00:52,486 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:52,486 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:52,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 03:00:52,486 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1732328720, now seen corresponding path program 1 times [2022-03-20 03:00:52,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:52,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708983617] [2022-03-20 03:00:52,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:52,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:00:52,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:52,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708983617] [2022-03-20 03:00:52,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708983617] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:52,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:52,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:52,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050741802] [2022-03-20 03:00:52,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:52,607 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:52,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:52,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:52,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:52,609 INFO L87 Difference]: Start difference. First operand 387 states and 594 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:54,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:55,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:55,881 INFO L93 Difference]: Finished difference Result 828 states and 1272 transitions. [2022-03-20 03:00:55,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:55,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 03:00:55,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:55,896 INFO L225 Difference]: With dead ends: 828 [2022-03-20 03:00:55,897 INFO L226 Difference]: Without dead ends: 467 [2022-03-20 03:00:55,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:55,897 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 149 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:55,898 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 03:00:55,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-20 03:00:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 387. [2022-03-20 03:00:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.531413612565445) internal successors, (585), 382 states have internal predecessors, (585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 589 transitions. [2022-03-20 03:00:55,904 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 589 transitions. Word has length 134 [2022-03-20 03:00:55,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:55,905 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 589 transitions. [2022-03-20 03:00:55,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 589 transitions. [2022-03-20 03:00:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 03:00:55,906 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:55,906 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:55,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 03:00:55,906 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:55,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:55,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1448931379, now seen corresponding path program 1 times [2022-03-20 03:00:55,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:55,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111379500] [2022-03-20 03:00:55,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:55,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:55,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:00:56,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:56,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111379500] [2022-03-20 03:00:56,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111379500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:56,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:56,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:56,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126072956] [2022-03-20 03:00:56,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:56,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:56,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:56,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:56,002 INFO L87 Difference]: Start difference. First operand 387 states and 589 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:57,789 INFO L93 Difference]: Finished difference Result 828 states and 1262 transitions. [2022-03-20 03:00:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:57,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-20 03:00:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:57,791 INFO L225 Difference]: With dead ends: 828 [2022-03-20 03:00:57,791 INFO L226 Difference]: Without dead ends: 467 [2022-03-20 03:00:57,791 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:57,792 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 138 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:57,792 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:00:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-20 03:00:57,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 387. [2022-03-20 03:00:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5209424083769634) internal successors, (581), 382 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 585 transitions. [2022-03-20 03:00:57,799 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 585 transitions. Word has length 139 [2022-03-20 03:00:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:57,799 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 585 transitions. [2022-03-20 03:00:57,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 585 transitions. [2022-03-20 03:00:57,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 03:00:57,800 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:57,800 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:57,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 03:00:57,801 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:57,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:57,802 INFO L85 PathProgramCache]: Analyzing trace with hash -491650635, now seen corresponding path program 1 times [2022-03-20 03:00:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:57,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964616553] [2022-03-20 03:00:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:57,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:57,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:00:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964616553] [2022-03-20 03:00:57,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964616553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:57,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:57,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:57,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260667461] [2022-03-20 03:00:57,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:57,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:57,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:57,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:57,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:57,930 INFO L87 Difference]: Start difference. First operand 387 states and 585 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:00,330 INFO L93 Difference]: Finished difference Result 904 states and 1378 transitions. [2022-03-20 03:01:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-20 03:01:00,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:00,332 INFO L225 Difference]: With dead ends: 904 [2022-03-20 03:01:00,332 INFO L226 Difference]: Without dead ends: 543 [2022-03-20 03:01:00,333 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:00,333 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 129 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:00,333 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 396 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:01:00,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-03-20 03:01:00,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 451. [2022-03-20 03:01:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5246636771300448) internal successors, (680), 446 states have internal predecessors, (680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 684 transitions. [2022-03-20 03:01:00,342 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 684 transitions. Word has length 139 [2022-03-20 03:01:00,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:00,342 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 684 transitions. [2022-03-20 03:01:00,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 684 transitions. [2022-03-20 03:01:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 03:01:00,343 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:00,343 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:00,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 03:01:00,343 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:00,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:00,344 INFO L85 PathProgramCache]: Analyzing trace with hash 163301867, now seen corresponding path program 1 times [2022-03-20 03:01:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:00,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577119468] [2022-03-20 03:01:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:00,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 03:01:00,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:00,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577119468] [2022-03-20 03:01:00,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577119468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:00,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:00,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:00,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424920396] [2022-03-20 03:01:00,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:00,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:00,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:00,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:00,436 INFO L87 Difference]: Start difference. First operand 451 states and 684 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:02,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:02,227 INFO L93 Difference]: Finished difference Result 946 states and 1440 transitions. [2022-03-20 03:01:02,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:02,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 03:01:02,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:02,229 INFO L225 Difference]: With dead ends: 946 [2022-03-20 03:01:02,229 INFO L226 Difference]: Without dead ends: 521 [2022-03-20 03:01:02,230 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:02,230 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 145 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:02,230 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 404 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:01:02,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-20 03:01:02,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 451. [2022-03-20 03:01:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.506726457399103) internal successors, (672), 446 states have internal predecessors, (672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 676 transitions. [2022-03-20 03:01:02,238 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 676 transitions. Word has length 144 [2022-03-20 03:01:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:02,238 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 676 transitions. [2022-03-20 03:01:02,238 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 676 transitions. [2022-03-20 03:01:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 03:01:02,239 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:02,239 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:02,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 03:01:02,239 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash -231720393, now seen corresponding path program 1 times [2022-03-20 03:01:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:02,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537072838] [2022-03-20 03:01:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:02,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:02,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:01:02,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:02,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537072838] [2022-03-20 03:01:02,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537072838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:02,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:02,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:02,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142943967] [2022-03-20 03:01:02,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:02,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:02,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:02,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:02,364 INFO L87 Difference]: Start difference. First operand 451 states and 676 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:04,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:04,334 INFO L93 Difference]: Finished difference Result 986 states and 1486 transitions. [2022-03-20 03:01:04,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:04,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 03:01:04,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:04,336 INFO L225 Difference]: With dead ends: 986 [2022-03-20 03:01:04,336 INFO L226 Difference]: Without dead ends: 561 [2022-03-20 03:01:04,350 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:04,351 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 125 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:04,351 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 404 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:01:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-03-20 03:01:04,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 481. [2022-03-20 03:01:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.495798319327731) internal successors, (712), 476 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:04,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 716 transitions. [2022-03-20 03:01:04,362 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 716 transitions. Word has length 144 [2022-03-20 03:01:04,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:04,363 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 716 transitions. [2022-03-20 03:01:04,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:04,363 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 716 transitions. [2022-03-20 03:01:04,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:01:04,364 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:04,364 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:04,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 03:01:04,364 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:04,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:04,364 INFO L85 PathProgramCache]: Analyzing trace with hash -901822382, now seen corresponding path program 1 times [2022-03-20 03:01:04,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:04,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16167698] [2022-03-20 03:01:04,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:04,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:01:04,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:04,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16167698] [2022-03-20 03:01:04,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16167698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:04,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:04,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:04,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643450023] [2022-03-20 03:01:04,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:04,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:04,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:04,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:04,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:04,461 INFO L87 Difference]: Start difference. First operand 481 states and 716 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:06,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:06,429 INFO L93 Difference]: Finished difference Result 968 states and 1449 transitions. [2022-03-20 03:01:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:06,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 03:01:06,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:06,431 INFO L225 Difference]: With dead ends: 968 [2022-03-20 03:01:06,431 INFO L226 Difference]: Without dead ends: 513 [2022-03-20 03:01:06,432 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:06,432 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 66 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:06,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 533 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:01:06,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-03-20 03:01:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 481. [2022-03-20 03:01:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4936974789915967) internal successors, (711), 476 states have internal predecessors, (711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 715 transitions. [2022-03-20 03:01:06,439 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 715 transitions. Word has length 145 [2022-03-20 03:01:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:06,439 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 715 transitions. [2022-03-20 03:01:06,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:06,439 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 715 transitions. [2022-03-20 03:01:06,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:01:06,441 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:06,442 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:06,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 03:01:06,442 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:06,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:06,442 INFO L85 PathProgramCache]: Analyzing trace with hash -189008969, now seen corresponding path program 1 times [2022-03-20 03:01:06,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:06,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93827550] [2022-03-20 03:01:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:06,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 03:01:06,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:06,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93827550] [2022-03-20 03:01:06,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93827550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:06,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:06,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:06,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107542758] [2022-03-20 03:01:06,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:06,531 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:06,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:06,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:06,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:06,532 INFO L87 Difference]: Start difference. First operand 481 states and 715 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:07,999 INFO L93 Difference]: Finished difference Result 1388 states and 2083 transitions. [2022-03-20 03:01:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:08,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 03:01:08,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:08,002 INFO L225 Difference]: With dead ends: 1388 [2022-03-20 03:01:08,002 INFO L226 Difference]: Without dead ends: 933 [2022-03-20 03:01:08,003 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:08,003 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:08,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 438 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 03:01:08,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-03-20 03:01:08,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 933. [2022-03-20 03:01:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.488146551724138) internal successors, (1381), 928 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1385 transitions. [2022-03-20 03:01:08,020 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1385 transitions. Word has length 146 [2022-03-20 03:01:08,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:08,020 INFO L478 AbstractCegarLoop]: Abstraction has 933 states and 1385 transitions. [2022-03-20 03:01:08,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:08,021 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1385 transitions. [2022-03-20 03:01:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:01:08,022 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:08,023 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:08,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 03:01:08,023 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1708487797, now seen corresponding path program 1 times [2022-03-20 03:01:08,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:08,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578903591] [2022-03-20 03:01:08,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:08,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-20 03:01:08,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:08,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578903591] [2022-03-20 03:01:08,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578903591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:08,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:08,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881827451] [2022-03-20 03:01:08,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:08,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:08,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:08,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:08,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:08,103 INFO L87 Difference]: Start difference. First operand 933 states and 1385 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:09,433 INFO L93 Difference]: Finished difference Result 1867 states and 2777 transitions. [2022-03-20 03:01:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:09,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 03:01:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:09,437 INFO L225 Difference]: With dead ends: 1867 [2022-03-20 03:01:09,437 INFO L226 Difference]: Without dead ends: 960 [2022-03-20 03:01:09,438 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:09,438 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:09,438 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 03:01:09,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-03-20 03:01:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-03-20 03:01:09,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.4827225130890052) internal successors, (1416), 955 states have internal predecessors, (1416), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:09,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1420 transitions. [2022-03-20 03:01:09,451 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1420 transitions. Word has length 146 [2022-03-20 03:01:09,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:09,452 INFO L478 AbstractCegarLoop]: Abstraction has 960 states and 1420 transitions. [2022-03-20 03:01:09,452 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:09,452 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1420 transitions. [2022-03-20 03:01:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:01:09,454 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:09,454 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:09,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 03:01:09,455 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:09,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash 615852595, now seen corresponding path program 1 times [2022-03-20 03:01:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:09,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254198987] [2022-03-20 03:01:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:09,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:09,537 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-20 03:01:09,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:09,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254198987] [2022-03-20 03:01:09,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254198987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:09,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:09,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:09,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510948323] [2022-03-20 03:01:09,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:09,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:09,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:09,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:09,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:09,538 INFO L87 Difference]: Start difference. First operand 960 states and 1420 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:11,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:12,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:12,601 INFO L93 Difference]: Finished difference Result 1896 states and 2813 transitions. [2022-03-20 03:01:12,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:12,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 03:01:12,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:12,604 INFO L225 Difference]: With dead ends: 1896 [2022-03-20 03:01:12,604 INFO L226 Difference]: Without dead ends: 962 [2022-03-20 03:01:12,605 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:12,607 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:12,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 03:01:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-03-20 03:01:12,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-03-20 03:01:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4817136886102404) internal successors, (1418), 957 states have internal predecessors, (1418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1422 transitions. [2022-03-20 03:01:12,619 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1422 transitions. Word has length 146 [2022-03-20 03:01:12,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:12,619 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1422 transitions. [2022-03-20 03:01:12,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1422 transitions. [2022-03-20 03:01:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 03:01:12,621 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:12,621 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:12,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 03:01:12,621 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:12,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash -482566899, now seen corresponding path program 1 times [2022-03-20 03:01:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:12,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227878440] [2022-03-20 03:01:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:01:12,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:12,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227878440] [2022-03-20 03:01:12,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227878440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:12,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:12,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:12,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678918351] [2022-03-20 03:01:12,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:12,739 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:12,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:12,739 INFO L87 Difference]: Start difference. First operand 962 states and 1422 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:13,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:14,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:14,905 INFO L93 Difference]: Finished difference Result 2348 states and 3495 transitions. [2022-03-20 03:01:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:14,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-20 03:01:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:14,910 INFO L225 Difference]: With dead ends: 2348 [2022-03-20 03:01:14,910 INFO L226 Difference]: Without dead ends: 1414 [2022-03-20 03:01:14,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:14,911 INFO L913 BasicCegarLoop]: 389 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:14,911 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 583 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:01:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-03-20 03:01:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1414. [2022-03-20 03:01:14,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1409 states have (on average 1.481902058197303) internal successors, (2088), 1409 states have internal predecessors, (2088), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:14,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2092 transitions. [2022-03-20 03:01:14,931 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2092 transitions. Word has length 148 [2022-03-20 03:01:14,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:14,931 INFO L478 AbstractCegarLoop]: Abstraction has 1414 states and 2092 transitions. [2022-03-20 03:01:14,932 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:14,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2092 transitions. [2022-03-20 03:01:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-20 03:01:14,934 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:14,934 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:14,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 03:01:14,934 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:14,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1950808099, now seen corresponding path program 1 times [2022-03-20 03:01:14,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:14,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103074424] [2022-03-20 03:01:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:14,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:15,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-20 03:01:15,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:15,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103074424] [2022-03-20 03:01:15,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103074424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:15,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:15,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:15,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196173331] [2022-03-20 03:01:15,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:15,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:15,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:15,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:15,042 INFO L87 Difference]: Start difference. First operand 1414 states and 2092 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:17,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:17,743 INFO L93 Difference]: Finished difference Result 2950 states and 4371 transitions. [2022-03-20 03:01:17,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:17,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 177 [2022-03-20 03:01:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:17,765 INFO L225 Difference]: With dead ends: 2950 [2022-03-20 03:01:17,765 INFO L226 Difference]: Without dead ends: 1564 [2022-03-20 03:01:17,767 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:17,767 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:17,767 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 619 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:01:17,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-03-20 03:01:17,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1498. [2022-03-20 03:01:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1493 states have (on average 1.4809109176155393) internal successors, (2211), 1493 states have internal predecessors, (2211), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2215 transitions. [2022-03-20 03:01:17,786 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2215 transitions. Word has length 177 [2022-03-20 03:01:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:17,787 INFO L478 AbstractCegarLoop]: Abstraction has 1498 states and 2215 transitions. [2022-03-20 03:01:17,787 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2215 transitions. [2022-03-20 03:01:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-20 03:01:17,789 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:17,789 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:17,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 03:01:17,789 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:17,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:17,790 INFO L85 PathProgramCache]: Analyzing trace with hash 41249864, now seen corresponding path program 1 times [2022-03-20 03:01:17,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:17,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814481435] [2022-03-20 03:01:17,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:17,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:17,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-03-20 03:01:17,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:17,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814481435] [2022-03-20 03:01:17,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814481435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:17,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:17,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:17,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127214570] [2022-03-20 03:01:17,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:17,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:17,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:17,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:17,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:17,905 INFO L87 Difference]: Start difference. First operand 1498 states and 2215 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:20,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:20,456 INFO L93 Difference]: Finished difference Result 3173 states and 4677 transitions. [2022-03-20 03:01:20,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:20,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-20 03:01:20,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:20,461 INFO L225 Difference]: With dead ends: 3173 [2022-03-20 03:01:20,461 INFO L226 Difference]: Without dead ends: 1703 [2022-03-20 03:01:20,463 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:20,463 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 130 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:20,463 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 390 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:01:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-03-20 03:01:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1498. [2022-03-20 03:01:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1493 states have (on average 1.4648359008707301) internal successors, (2187), 1493 states have internal predecessors, (2187), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2191 transitions. [2022-03-20 03:01:20,483 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2191 transitions. Word has length 200 [2022-03-20 03:01:20,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:20,483 INFO L478 AbstractCegarLoop]: Abstraction has 1498 states and 2191 transitions. [2022-03-20 03:01:20,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2191 transitions. [2022-03-20 03:01:20,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-20 03:01:20,485 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:20,486 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:20,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 03:01:20,486 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:20,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:20,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1704769598, now seen corresponding path program 1 times [2022-03-20 03:01:20,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:20,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81550239] [2022-03-20 03:01:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:20,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:20,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-20 03:01:20,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:20,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81550239] [2022-03-20 03:01:20,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81550239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:20,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:20,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:20,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933699191] [2022-03-20 03:01:20,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:20,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:20,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:20,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:20,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:20,627 INFO L87 Difference]: Start difference. First operand 1498 states and 2191 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:23,401 INFO L93 Difference]: Finished difference Result 3449 states and 5067 transitions. [2022-03-20 03:01:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:23,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-03-20 03:01:23,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:23,407 INFO L225 Difference]: With dead ends: 3449 [2022-03-20 03:01:23,407 INFO L226 Difference]: Without dead ends: 1979 [2022-03-20 03:01:23,409 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:23,409 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:23,409 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 384 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:01:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2022-03-20 03:01:23,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1979. [2022-03-20 03:01:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1974 states have (on average 1.46757852077001) internal successors, (2897), 1974 states have internal predecessors, (2897), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:23,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2901 transitions. [2022-03-20 03:01:23,438 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2901 transitions. Word has length 201 [2022-03-20 03:01:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:23,439 INFO L478 AbstractCegarLoop]: Abstraction has 1979 states and 2901 transitions. [2022-03-20 03:01:23,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:23,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2901 transitions. [2022-03-20 03:01:23,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-20 03:01:23,441 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:23,442 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:23,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 03:01:23,442 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 590865760, now seen corresponding path program 1 times [2022-03-20 03:01:23,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:23,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403080128] [2022-03-20 03:01:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:23,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-20 03:01:23,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:23,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403080128] [2022-03-20 03:01:23,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403080128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:23,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:23,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:23,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297213656] [2022-03-20 03:01:23,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:23,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:23,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:23,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:23,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:23,549 INFO L87 Difference]: Start difference. First operand 1979 states and 2901 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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) [2022-03-20 03:01:24,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:26,317 INFO L93 Difference]: Finished difference Result 3999 states and 5871 transitions. [2022-03-20 03:01:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:26,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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 231 [2022-03-20 03:01:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:26,323 INFO L225 Difference]: With dead ends: 3999 [2022-03-20 03:01:26,323 INFO L226 Difference]: Without dead ends: 2048 [2022-03-20 03:01:26,325 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:26,334 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 38 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:26,334 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 607 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:01:26,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2022-03-20 03:01:26,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1979. [2022-03-20 03:01:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1974 states have (on average 1.4655521783181358) internal successors, (2893), 1974 states have internal predecessors, (2893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:26,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2897 transitions. [2022-03-20 03:01:26,364 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2897 transitions. Word has length 231 [2022-03-20 03:01:26,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:26,364 INFO L478 AbstractCegarLoop]: Abstraction has 1979 states and 2897 transitions. [2022-03-20 03:01:26,364 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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) [2022-03-20 03:01:26,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2897 transitions. [2022-03-20 03:01:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-03-20 03:01:26,367 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:26,367 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:26,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 03:01:26,367 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:26,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1326276381, now seen corresponding path program 1 times [2022-03-20 03:01:26,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:26,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002631242] [2022-03-20 03:01:26,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:26,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:26,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-20 03:01:26,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:26,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002631242] [2022-03-20 03:01:26,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002631242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:26,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:26,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321537354] [2022-03-20 03:01:26,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:26,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:26,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:26,494 INFO L87 Difference]: Start difference. First operand 1979 states and 2897 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:28,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:30,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:30,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:30,888 INFO L93 Difference]: Finished difference Result 4203 states and 6136 transitions. [2022-03-20 03:01:30,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:30,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 232 [2022-03-20 03:01:30,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:30,894 INFO L225 Difference]: With dead ends: 4203 [2022-03-20 03:01:30,894 INFO L226 Difference]: Without dead ends: 2252 [2022-03-20 03:01:30,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:30,897 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 131 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:30,897 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 384 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 03:01:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-03-20 03:01:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1979. [2022-03-20 03:01:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1974 states have (on average 1.4473150962512664) internal successors, (2857), 1974 states have internal predecessors, (2857), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2861 transitions. [2022-03-20 03:01:30,930 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2861 transitions. Word has length 232 [2022-03-20 03:01:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:30,931 INFO L478 AbstractCegarLoop]: Abstraction has 1979 states and 2861 transitions. [2022-03-20 03:01:30,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2861 transitions. [2022-03-20 03:01:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-20 03:01:30,933 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:30,933 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:30,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 03:01:30,934 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:30,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:30,934 INFO L85 PathProgramCache]: Analyzing trace with hash -247535656, now seen corresponding path program 1 times [2022-03-20 03:01:30,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:30,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859945890] [2022-03-20 03:01:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:30,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-03-20 03:01:31,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:31,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859945890] [2022-03-20 03:01:31,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859945890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:31,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:31,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:31,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056574654] [2022-03-20 03:01:31,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:31,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:31,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:31,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:31,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:31,055 INFO L87 Difference]: Start difference. First operand 1979 states and 2861 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:33,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:34,096 INFO L93 Difference]: Finished difference Result 4410 states and 6389 transitions. [2022-03-20 03:01:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:34,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-20 03:01:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:34,116 INFO L225 Difference]: With dead ends: 4410 [2022-03-20 03:01:34,116 INFO L226 Difference]: Without dead ends: 2459 [2022-03-20 03:01:34,119 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:34,119 INFO L913 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:34,119 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 03:01:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2022-03-20 03:01:34,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2459. [2022-03-20 03:01:34,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2454 states have (on average 1.4466177669111655) internal successors, (3550), 2454 states have internal predecessors, (3550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3554 transitions. [2022-03-20 03:01:34,155 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3554 transitions. Word has length 234 [2022-03-20 03:01:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:34,155 INFO L478 AbstractCegarLoop]: Abstraction has 2459 states and 3554 transitions. [2022-03-20 03:01:34,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3554 transitions. [2022-03-20 03:01:34,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 03:01:34,158 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:34,158 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:34,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 03:01:34,159 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:34,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:34,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2056291779, now seen corresponding path program 1 times [2022-03-20 03:01:34,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:34,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78146495] [2022-03-20 03:01:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:34,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 03:01:34,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:34,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78146495] [2022-03-20 03:01:34,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78146495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:34,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:34,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:34,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930090461] [2022-03-20 03:01:34,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:34,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:34,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:34,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:34,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:34,295 INFO L87 Difference]: Start difference. First operand 2459 states and 3554 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2022-03-20 03:01:36,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:36,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:36,767 INFO L93 Difference]: Finished difference Result 5371 states and 7783 transitions. [2022-03-20 03:01:36,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:36,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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 240 [2022-03-20 03:01:36,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:36,772 INFO L225 Difference]: With dead ends: 5371 [2022-03-20 03:01:36,773 INFO L226 Difference]: Without dead ends: 2940 [2022-03-20 03:01:36,775 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:36,776 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:36,776 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 383 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:01:36,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2022-03-20 03:01:36,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2022-03-20 03:01:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2935 states have (on average 1.448381601362862) internal successors, (4251), 2935 states have internal predecessors, (4251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 4255 transitions. [2022-03-20 03:01:36,831 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 4255 transitions. Word has length 240 [2022-03-20 03:01:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:36,831 INFO L478 AbstractCegarLoop]: Abstraction has 2940 states and 4255 transitions. [2022-03-20 03:01:36,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2022-03-20 03:01:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 4255 transitions. [2022-03-20 03:01:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-20 03:01:36,835 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:36,835 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:36,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 03:01:36,835 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:36,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:36,837 INFO L85 PathProgramCache]: Analyzing trace with hash 613058599, now seen corresponding path program 1 times [2022-03-20 03:01:36,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:36,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818221921] [2022-03-20 03:01:36,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:36,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:36,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 03:01:36,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:36,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818221921] [2022-03-20 03:01:36,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818221921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:36,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:36,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:36,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220602834] [2022-03-20 03:01:36,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:36,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:36,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:36,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:36,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:36,959 INFO L87 Difference]: Start difference. First operand 2940 states and 4255 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:38,844 INFO L93 Difference]: Finished difference Result 6333 states and 9185 transitions. [2022-03-20 03:01:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:38,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-03-20 03:01:38,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:38,850 INFO L225 Difference]: With dead ends: 6333 [2022-03-20 03:01:38,850 INFO L226 Difference]: Without dead ends: 3421 [2022-03-20 03:01:38,854 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:38,854 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:38,854 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 382 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:01:38,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3421 states. [2022-03-20 03:01:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3421 to 3421. [2022-03-20 03:01:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3416 states have (on average 1.4499414519906324) internal successors, (4953), 3416 states have internal predecessors, (4953), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 4957 transitions. [2022-03-20 03:01:38,904 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 4957 transitions. Word has length 242 [2022-03-20 03:01:38,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:38,904 INFO L478 AbstractCegarLoop]: Abstraction has 3421 states and 4957 transitions. [2022-03-20 03:01:38,904 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:38,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 4957 transitions. [2022-03-20 03:01:38,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-20 03:01:38,909 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:38,910 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:38,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 03:01:38,910 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:38,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1267934419, now seen corresponding path program 1 times [2022-03-20 03:01:38,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:38,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856532965] [2022-03-20 03:01:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:38,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-20 03:01:39,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:39,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856532965] [2022-03-20 03:01:39,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856532965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:39,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:39,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:39,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573726046] [2022-03-20 03:01:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:39,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:39,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:39,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:39,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:39,038 INFO L87 Difference]: Start difference. First operand 3421 states and 4957 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:40,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:41,457 INFO L93 Difference]: Finished difference Result 7290 states and 10582 transitions. [2022-03-20 03:01:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-03-20 03:01:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:41,463 INFO L225 Difference]: With dead ends: 7290 [2022-03-20 03:01:41,463 INFO L226 Difference]: Without dead ends: 3897 [2022-03-20 03:01:41,467 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:41,467 INFO L913 BasicCegarLoop]: 388 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:41,467 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 582 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:01:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2022-03-20 03:01:41,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3897. [2022-03-20 03:01:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3897 states, 3892 states have (on average 1.4493833504624871) internal successors, (5641), 3892 states have internal predecessors, (5641), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 5645 transitions. [2022-03-20 03:01:41,517 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 5645 transitions. Word has length 274 [2022-03-20 03:01:41,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:41,517 INFO L478 AbstractCegarLoop]: Abstraction has 3897 states and 5645 transitions. [2022-03-20 03:01:41,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 5645 transitions. [2022-03-20 03:01:41,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-20 03:01:41,522 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:41,522 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:41,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 03:01:41,522 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:41,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:41,523 INFO L85 PathProgramCache]: Analyzing trace with hash -103872879, now seen corresponding path program 1 times [2022-03-20 03:01:41,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:41,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935593750] [2022-03-20 03:01:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-20 03:01:41,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:41,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935593750] [2022-03-20 03:01:41,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935593750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:41,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:41,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:41,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965078603] [2022-03-20 03:01:41,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:41,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:41,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:41,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:41,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:41,648 INFO L87 Difference]: Start difference. First operand 3897 states and 5645 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 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) [2022-03-20 03:01:44,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:44,017 INFO L93 Difference]: Finished difference Result 8214 states and 11918 transitions. [2022-03-20 03:01:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:44,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 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 274 [2022-03-20 03:01:44,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:44,024 INFO L225 Difference]: With dead ends: 8214 [2022-03-20 03:01:44,024 INFO L226 Difference]: Without dead ends: 4345 [2022-03-20 03:01:44,029 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:44,029 INFO L913 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:44,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:01:44,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2022-03-20 03:01:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 4345. [2022-03-20 03:01:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 4340 states have (on average 1.448847926267281) internal successors, (6288), 4340 states have internal predecessors, (6288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 6292 transitions. [2022-03-20 03:01:44,095 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 6292 transitions. Word has length 274 [2022-03-20 03:01:44,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:44,095 INFO L478 AbstractCegarLoop]: Abstraction has 4345 states and 6292 transitions. [2022-03-20 03:01:44,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 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) [2022-03-20 03:01:44,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 6292 transitions. [2022-03-20 03:01:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-20 03:01:44,102 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:44,102 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:44,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 03:01:44,103 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1463881410, now seen corresponding path program 1 times [2022-03-20 03:01:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:44,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164420314] [2022-03-20 03:01:44,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:44,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-03-20 03:01:44,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:44,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164420314] [2022-03-20 03:01:44,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164420314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:44,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:44,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:44,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000369426] [2022-03-20 03:01:44,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:44,287 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:44,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:44,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:44,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:44,288 INFO L87 Difference]: Start difference. First operand 4345 states and 6292 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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) [2022-03-20 03:01:46,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:47,055 INFO L93 Difference]: Finished difference Result 9143 states and 13259 transitions. [2022-03-20 03:01:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:47,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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 349 [2022-03-20 03:01:47,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:47,063 INFO L225 Difference]: With dead ends: 9143 [2022-03-20 03:01:47,063 INFO L226 Difference]: Without dead ends: 4826 [2022-03-20 03:01:47,068 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:47,069 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:47,069 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 379 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:01:47,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4826 states. [2022-03-20 03:01:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4826 to 4826. [2022-03-20 03:01:47,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4826 states, 4821 states have (on average 1.4505289359054139) internal successors, (6993), 4821 states have internal predecessors, (6993), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4826 states to 4826 states and 6997 transitions. [2022-03-20 03:01:47,135 INFO L78 Accepts]: Start accepts. Automaton has 4826 states and 6997 transitions. Word has length 349 [2022-03-20 03:01:47,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:47,135 INFO L478 AbstractCegarLoop]: Abstraction has 4826 states and 6997 transitions. [2022-03-20 03:01:47,135 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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) [2022-03-20 03:01:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4826 states and 6997 transitions. [2022-03-20 03:01:47,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-03-20 03:01:47,142 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:47,142 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:47,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 03:01:47,142 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:47,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:47,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1771900712, now seen corresponding path program 1 times [2022-03-20 03:01:47,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:47,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424129075] [2022-03-20 03:01:47,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:47,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:47,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:47,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-03-20 03:01:47,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:47,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424129075] [2022-03-20 03:01:47,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424129075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:47,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:47,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:01:47,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910080192] [2022-03-20 03:01:47,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:47,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:01:47,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:01:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:47,328 INFO L87 Difference]: Start difference. First operand 4826 states and 6997 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2022-03-20 03:01:49,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:49,088 INFO L93 Difference]: Finished difference Result 5309 states and 7705 transitions. [2022-03-20 03:01:49,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:01:49,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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 390 [2022-03-20 03:01:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:49,097 INFO L225 Difference]: With dead ends: 5309 [2022-03-20 03:01:49,097 INFO L226 Difference]: Without dead ends: 5307 [2022-03-20 03:01:49,099 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:01:49,099 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:49,099 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 378 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 03:01:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2022-03-20 03:01:49,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 5307. [2022-03-20 03:01:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5302 states have (on average 1.4520935496039231) internal successors, (7699), 5302 states have internal predecessors, (7699), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 7703 transitions. [2022-03-20 03:01:49,205 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 7703 transitions. Word has length 390 [2022-03-20 03:01:49,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:49,205 INFO L478 AbstractCegarLoop]: Abstraction has 5307 states and 7703 transitions. [2022-03-20 03:01:49,205 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2022-03-20 03:01:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 7703 transitions. [2022-03-20 03:01:49,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-20 03:01:49,213 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:49,213 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:49,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 03:01:49,214 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:49,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:49,214 INFO L85 PathProgramCache]: Analyzing trace with hash 64201882, now seen corresponding path program 1 times [2022-03-20 03:01:49,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:49,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972612834] [2022-03-20 03:01:49,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:49,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-03-20 03:01:49,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:49,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972612834] [2022-03-20 03:01:49,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972612834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:49,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:49,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:49,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040781846] [2022-03-20 03:01:49,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:49,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:49,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:49,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:49,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:49,402 INFO L87 Difference]: Start difference. First operand 5307 states and 7703 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:50,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:53,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:53,291 INFO L93 Difference]: Finished difference Result 11455 states and 16605 transitions. [2022-03-20 03:01:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:53,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 397 [2022-03-20 03:01:53,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:53,298 INFO L225 Difference]: With dead ends: 11455 [2022-03-20 03:01:53,299 INFO L226 Difference]: Without dead ends: 6176 [2022-03-20 03:01:53,305 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:53,306 INFO L913 BasicCegarLoop]: 270 mSDtfsCounter, 62 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:53,306 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 659 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 03:01:53,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2022-03-20 03:01:53,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 5758. [2022-03-20 03:01:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5758 states, 5753 states have (on average 1.4529810533634626) internal successors, (8359), 5753 states have internal predecessors, (8359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5758 states to 5758 states and 8363 transitions. [2022-03-20 03:01:53,396 INFO L78 Accepts]: Start accepts. Automaton has 5758 states and 8363 transitions. Word has length 397 [2022-03-20 03:01:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:53,396 INFO L478 AbstractCegarLoop]: Abstraction has 5758 states and 8363 transitions. [2022-03-20 03:01:53,396 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5758 states and 8363 transitions. [2022-03-20 03:01:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-20 03:01:53,404 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:53,404 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:53,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 03:01:53,404 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1011239768, now seen corresponding path program 1 times [2022-03-20 03:01:53,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:53,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111104531] [2022-03-20 03:01:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:54,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-03-20 03:01:54,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:54,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111104531] [2022-03-20 03:01:54,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111104531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:54,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:54,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 03:01:54,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029957940] [2022-03-20 03:01:54,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:54,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 03:01:54,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:54,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 03:01:54,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:01:54,008 INFO L87 Difference]: Start difference. First operand 5758 states and 8363 transitions. Second operand has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-03-20 03:01:55,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:58,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:59,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:59,326 INFO L93 Difference]: Finished difference Result 11509 states and 16718 transitions. [2022-03-20 03:01:59,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:01:59,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 397 [2022-03-20 03:01:59,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:59,334 INFO L225 Difference]: With dead ends: 11509 [2022-03-20 03:01:59,334 INFO L226 Difference]: Without dead ends: 5758 [2022-03-20 03:01:59,344 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 03:01:59,344 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:59,347 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 03:01:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2022-03-20 03:01:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5758. [2022-03-20 03:01:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5758 states, 5753 states have (on average 1.4528072310099078) internal successors, (8358), 5753 states have internal predecessors, (8358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5758 states to 5758 states and 8362 transitions. [2022-03-20 03:01:59,462 INFO L78 Accepts]: Start accepts. Automaton has 5758 states and 8362 transitions. Word has length 397 [2022-03-20 03:01:59,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:59,462 INFO L478 AbstractCegarLoop]: Abstraction has 5758 states and 8362 transitions. [2022-03-20 03:01:59,462 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-03-20 03:01:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5758 states and 8362 transitions. [2022-03-20 03:01:59,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-20 03:01:59,470 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:59,470 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:59,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 03:01:59,471 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:59,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:59,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1462476326, now seen corresponding path program 1 times [2022-03-20 03:01:59,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:59,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084010584] [2022-03-20 03:01:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:59,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:01,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 137 proven. 1228 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-03-20 03:02:01,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:01,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084010584] [2022-03-20 03:02:01,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084010584] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:02:01,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620968622] [2022-03-20 03:02:01,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:01,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:02:01,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:02:01,253 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) [2022-03-20 03:02:01,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 03:02:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:02,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 2032 conjuncts, 182 conjunts are in the unsatisfiable core [2022-03-20 03:02:02,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:02:02,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:02,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:02,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:02,837 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-20 03:02:02,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 1453006 treesize of output 308348 [2022-03-20 03:02:02,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:10,189 INFO L244 Elim1Store]: Index analysis took 454 ms