/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.10.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:56:10,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:56:10,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:56:10,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:56:10,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:56:10,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:56:10,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:56:10,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:56:10,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:56:11,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:56:11,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:56:11,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:56:11,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:56:11,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:56:11,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:56:11,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:56:11,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:56:11,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:56:11,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:56:11,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:56:11,020 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:56:11,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:56:11,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:56:11,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:56:11,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:56:11,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:56:11,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:56:11,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:56:11,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:56:11,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:56:11,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 02:56:11,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 02:56:11,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 02:56:11,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 02:56:11,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 02:56:11,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 02:56:11,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 02:56:11,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 02:56:11,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 02:56:11,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:56:11,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:56:11,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:56:11,040 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 02:56:11,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:56:11,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:56:11,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:56:11,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:56:11,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:56:11,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:56:11,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:56:11,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:56:11,069 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:56:11,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:56:11,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:56:11,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:56:11,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:56:11,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:56:11,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:56:11,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:56:11,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:56:11,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:56:11,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:56:11,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:56:11,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:56:11,072 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:56:11,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:56:11,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:56:11,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:56:11,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:56:11,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:56:11,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:56:11,338 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:56:11,338 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:56:11,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-20 02:56:11,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f68a5fe0/47ce29e46acd4e2085044abc6a0e0ed7/FLAG2f9bcf093 [2022-03-20 02:56:11,964 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:56:11,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-20 02:56:11,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f68a5fe0/47ce29e46acd4e2085044abc6a0e0ed7/FLAG2f9bcf093 [2022-03-20 02:56:12,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f68a5fe0/47ce29e46acd4e2085044abc6a0e0ed7 [2022-03-20 02:56:12,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:56:12,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:56:12,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:56:12,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:56:12,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:56:12,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:56:12" (1/1) ... [2022-03-20 02:56:12,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1959b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:12, skipping insertion in model container [2022-03-20 02:56:12,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:56:12" (1/1) ... [2022-03-20 02:56:12,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:56:12,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:56:12,879 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.10.i.cil-2.c[73311,73324] [2022-03-20 02:56:12,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:56:12,898 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:56:13,041 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.10.i.cil-2.c[73311,73324] [2022-03-20 02:56:13,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:56:13,060 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:56:13,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13 WrapperNode [2022-03-20 02:56:13,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:56:13,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:56:13,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:56:13,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:56:13,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:56:13,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:56:13,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:56:13,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:56:13,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (1/1) ... [2022-03-20 02:56:13,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:56:13,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:56:13,223 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 02:56:13,230 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 02:56:13,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:56:13,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:56:13,270 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:56:13,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:56:13,272 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:56:13,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:56:13,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:56:13,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:56:13,273 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:56:13,273 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:56:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:56:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:56:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:56:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:56:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:56:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:56:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:56:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:56:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:56:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:56:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:56:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:56:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:56:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:56:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:56:13,423 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:56:13,424 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:56:14,186 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:56:14,658 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:56:14,659 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:56:14,668 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:56:14,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:56:14,675 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:56:14,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:56:14 BoogieIcfgContainer [2022-03-20 02:56:14,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:56:14,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:56:14,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:56:14,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:56:14,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:56:12" (1/3) ... [2022-03-20 02:56:14,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6309c56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:56:14, skipping insertion in model container [2022-03-20 02:56:14,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:13" (2/3) ... [2022-03-20 02:56:14,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6309c56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:56:14, skipping insertion in model container [2022-03-20 02:56:14,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:56:14" (3/3) ... [2022-03-20 02:56:14,689 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-2.c [2022-03-20 02:56:14,693 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:56:14,694 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:56:14,745 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:56:14,750 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 02:56:14,750 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:56:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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 02:56:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 02:56:14,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:14,784 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] [2022-03-20 02:56:14,785 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash 105535570, now seen corresponding path program 1 times [2022-03-20 02:56:14,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:14,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054622335] [2022-03-20 02:56:14,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:14,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:15,298 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 02:56:15,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:15,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054622335] [2022-03-20 02:56:15,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054622335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:15,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:15,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:15,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459568605] [2022-03-20 02:56:15,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:15,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:15,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:15,348 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states 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 02:56:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:17,465 INFO L93 Difference]: Finished difference Result 421 states and 708 transitions. [2022-03-20 02:56:17,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:17,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-20 02:56:17,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:17,477 INFO L225 Difference]: With dead ends: 421 [2022-03-20 02:56:17,477 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 02:56:17,481 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 02:56:17,483 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 148 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:17,484 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 443 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:56:17,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 02:56:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 179. [2022-03-20 02:56:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5977011494252873) internal successors, (278), 174 states have internal predecessors, (278), 3 states have call successors, (3), 3 states 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 02:56:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 282 transitions. [2022-03-20 02:56:17,527 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 282 transitions. Word has length 48 [2022-03-20 02:56:17,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:17,527 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 282 transitions. [2022-03-20 02:56:17,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states 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 02:56:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 282 transitions. [2022-03-20 02:56:17,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 02:56:17,529 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:17,530 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 02:56:17,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:56:17,530 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:17,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:17,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1029867406, now seen corresponding path program 1 times [2022-03-20 02:56:17,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:17,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691029722] [2022-03-20 02:56:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:17,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:17,755 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 02:56:17,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:17,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691029722] [2022-03-20 02:56:17,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691029722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:17,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:17,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:17,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383660381] [2022-03-20 02:56:17,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:17,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:17,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:17,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:17,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:17,768 INFO L87 Difference]: Start difference. First operand 179 states and 282 transitions. 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 02:56:19,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:19,466 INFO L93 Difference]: Finished difference Result 458 states and 723 transitions. [2022-03-20 02:56:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:19,466 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 02:56:19,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:19,469 INFO L225 Difference]: With dead ends: 458 [2022-03-20 02:56:19,469 INFO L226 Difference]: Without dead ends: 294 [2022-03-20 02:56:19,470 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 02:56:19,471 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:19,471 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:56:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-20 02:56:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 219. [2022-03-20 02:56:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.644859813084112) internal successors, (352), 214 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:19,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 356 transitions. [2022-03-20 02:56:19,486 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 356 transitions. Word has length 49 [2022-03-20 02:56:19,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:19,487 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 356 transitions. [2022-03-20 02:56:19,487 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 02:56:19,487 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 356 transitions. [2022-03-20 02:56:19,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 02:56:19,489 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:19,490 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:19,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:56:19,490 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:19,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:19,491 INFO L85 PathProgramCache]: Analyzing trace with hash -556118041, now seen corresponding path program 1 times [2022-03-20 02:56:19,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:19,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958746115] [2022-03-20 02:56:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:19,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-20 02:56:19,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:19,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958746115] [2022-03-20 02:56:19,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958746115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:19,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:19,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:19,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844218302] [2022-03-20 02:56:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:19,675 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:19,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:19,676 INFO L87 Difference]: Start difference. First operand 219 states and 356 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 02:56:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:21,706 INFO L93 Difference]: Finished difference Result 451 states and 734 transitions. [2022-03-20 02:56:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:21,706 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 77 [2022-03-20 02:56:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:21,708 INFO L225 Difference]: With dead ends: 451 [2022-03-20 02:56:21,708 INFO L226 Difference]: Without dead ends: 247 [2022-03-20 02:56:21,709 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 02:56:21,710 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 22 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:21,710 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 463 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:56:21,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-20 02:56:21,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 230. [2022-03-20 02:56:21,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6488888888888888) internal successors, (371), 225 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:21,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 375 transitions. [2022-03-20 02:56:21,723 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 375 transitions. Word has length 77 [2022-03-20 02:56:21,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:21,723 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 375 transitions. [2022-03-20 02:56:21,723 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 02:56:21,723 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 375 transitions. [2022-03-20 02:56:21,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 02:56:21,726 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:21,726 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:21,727 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:56:21,727 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:21,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:21,727 INFO L85 PathProgramCache]: Analyzing trace with hash -847556179, now seen corresponding path program 1 times [2022-03-20 02:56:21,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:21,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162873484] [2022-03-20 02:56:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:21,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:21,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:21,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:21,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162873484] [2022-03-20 02:56:21,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162873484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:21,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:21,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:21,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427754548] [2022-03-20 02:56:21,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:21,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:21,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:21,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:21,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:21,856 INFO L87 Difference]: Start difference. First operand 230 states and 375 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 02:56:23,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:23,347 INFO L93 Difference]: Finished difference Result 549 states and 888 transitions. [2022-03-20 02:56:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:23,348 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 90 [2022-03-20 02:56:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:23,350 INFO L225 Difference]: With dead ends: 549 [2022-03-20 02:56:23,350 INFO L226 Difference]: Without dead ends: 345 [2022-03-20 02:56:23,351 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 02:56:23,351 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 138 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:23,352 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 598 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 02:56:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-20 02:56:23,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 246. [2022-03-20 02:56:23,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6390041493775933) internal successors, (395), 241 states have internal predecessors, (395), 3 states have call successors, (3), 3 states 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 02:56:23,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 399 transitions. [2022-03-20 02:56:23,363 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 399 transitions. Word has length 90 [2022-03-20 02:56:23,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:23,364 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 399 transitions. [2022-03-20 02:56:23,364 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 02:56:23,364 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 399 transitions. [2022-03-20 02:56:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 02:56:23,367 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:23,367 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:23,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:56:23,367 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:23,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1839246915, now seen corresponding path program 1 times [2022-03-20 02:56:23,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:23,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585827119] [2022-03-20 02:56:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:23,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:23,517 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:23,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:23,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585827119] [2022-03-20 02:56:23,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585827119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:23,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:23,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:23,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363036412] [2022-03-20 02:56:23,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:23,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:23,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:23,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:23,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:23,520 INFO L87 Difference]: Start difference. First operand 246 states and 399 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 02:56:25,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:25,079 INFO L93 Difference]: Finished difference Result 482 states and 781 transitions. [2022-03-20 02:56:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:25,079 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 91 [2022-03-20 02:56:25,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:25,081 INFO L225 Difference]: With dead ends: 482 [2022-03-20 02:56:25,081 INFO L226 Difference]: Without dead ends: 262 [2022-03-20 02:56:25,082 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 02:56:25,083 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:25,083 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 467 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 02:56:25,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-20 02:56:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 246. [2022-03-20 02:56:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6348547717842323) internal successors, (394), 241 states have internal predecessors, (394), 3 states have call successors, (3), 3 states 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 02:56:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 398 transitions. [2022-03-20 02:56:25,093 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 398 transitions. Word has length 91 [2022-03-20 02:56:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:25,094 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 398 transitions. [2022-03-20 02:56:25,094 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 02:56:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 398 transitions. [2022-03-20 02:56:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 02:56:25,096 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:25,096 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:56:25,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:56:25,097 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:25,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1790326953, now seen corresponding path program 1 times [2022-03-20 02:56:25,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:25,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970362620] [2022-03-20 02:56:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:25,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:25,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970362620] [2022-03-20 02:56:25,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970362620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:25,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:25,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:25,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459485372] [2022-03-20 02:56:25,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:25,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:25,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:25,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:25,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:25,225 INFO L87 Difference]: Start difference. First operand 246 states and 398 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 02:56:27,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:29,026 INFO L93 Difference]: Finished difference Result 541 states and 863 transitions. [2022-03-20 02:56:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:29,026 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 91 [2022-03-20 02:56:29,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:29,028 INFO L225 Difference]: With dead ends: 541 [2022-03-20 02:56:29,028 INFO L226 Difference]: Without dead ends: 321 [2022-03-20 02:56:29,029 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 02:56:29,029 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 142 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:29,030 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 02:56:29,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-20 02:56:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 246. [2022-03-20 02:56:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6182572614107884) internal successors, (390), 241 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 394 transitions. [2022-03-20 02:56:29,038 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 394 transitions. Word has length 91 [2022-03-20 02:56:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:29,038 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 394 transitions. [2022-03-20 02:56:29,038 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 02:56:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 394 transitions. [2022-03-20 02:56:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 02:56:29,039 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:29,040 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:56:29,040 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:56:29,040 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:29,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:29,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1810194734, now seen corresponding path program 1 times [2022-03-20 02:56:29,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:29,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418555294] [2022-03-20 02:56:29,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:29,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:29,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:29,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:29,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418555294] [2022-03-20 02:56:29,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418555294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:29,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:29,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:29,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903962988] [2022-03-20 02:56:29,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:29,162 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:29,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:29,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:29,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:29,163 INFO L87 Difference]: Start difference. First operand 246 states and 394 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 02:56:31,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:32,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:32,171 INFO L93 Difference]: Finished difference Result 480 states and 771 transitions. [2022-03-20 02:56:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:32,171 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 91 [2022-03-20 02:56:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:32,173 INFO L225 Difference]: With dead ends: 480 [2022-03-20 02:56:32,173 INFO L226 Difference]: Without dead ends: 260 [2022-03-20 02:56:32,174 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 02:56:32,174 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:32,175 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 471 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:56:32,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-20 02:56:32,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2022-03-20 02:56:32,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6141078838174274) internal successors, (389), 241 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:32,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 393 transitions. [2022-03-20 02:56:32,183 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 393 transitions. Word has length 91 [2022-03-20 02:56:32,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:32,183 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 393 transitions. [2022-03-20 02:56:32,183 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 02:56:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 393 transitions. [2022-03-20 02:56:32,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 02:56:32,185 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:32,185 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 02:56:32,185 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:56:32,185 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:32,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:32,186 INFO L85 PathProgramCache]: Analyzing trace with hash -370582543, now seen corresponding path program 1 times [2022-03-20 02:56:32,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:32,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914624379] [2022-03-20 02:56:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:32,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:32,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:32,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:32,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914624379] [2022-03-20 02:56:32,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914624379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:32,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:32,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312806118] [2022-03-20 02:56:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:32,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:32,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:32,293 INFO L87 Difference]: Start difference. First operand 246 states and 393 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 02:56:33,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:35,373 INFO L93 Difference]: Finished difference Result 479 states and 769 transitions. [2022-03-20 02:56:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:35,374 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 91 [2022-03-20 02:56:35,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:35,375 INFO L225 Difference]: With dead ends: 479 [2022-03-20 02:56:35,375 INFO L226 Difference]: Without dead ends: 259 [2022-03-20 02:56:35,376 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 02:56:35,377 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 18 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:35,377 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:56:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-20 02:56:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 246. [2022-03-20 02:56:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6099585062240664) internal successors, (388), 241 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 02:56:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 392 transitions. [2022-03-20 02:56:35,384 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 392 transitions. Word has length 91 [2022-03-20 02:56:35,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:35,384 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 392 transitions. [2022-03-20 02:56:35,384 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 02:56:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 392 transitions. [2022-03-20 02:56:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 02:56:35,385 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:35,385 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:35,386 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:56:35,386 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:35,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:35,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2098405732, now seen corresponding path program 1 times [2022-03-20 02:56:35,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:35,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237340267] [2022-03-20 02:56:35,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:35,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:35,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:35,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237340267] [2022-03-20 02:56:35,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237340267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:35,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:35,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72495941] [2022-03-20 02:56:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:35,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:35,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:35,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:35,526 INFO L87 Difference]: Start difference. First operand 246 states and 392 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 02:56:36,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:38,643 INFO L93 Difference]: Finished difference Result 479 states and 768 transitions. [2022-03-20 02:56:38,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:38,644 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 92 [2022-03-20 02:56:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:38,645 INFO L225 Difference]: With dead ends: 479 [2022-03-20 02:56:38,646 INFO L226 Difference]: Without dead ends: 259 [2022-03-20 02:56:38,646 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 02:56:38,647 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 22 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:38,647 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:56:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-20 02:56:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 246. [2022-03-20 02:56:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6058091286307055) internal successors, (387), 241 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 02:56:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 391 transitions. [2022-03-20 02:56:38,654 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 391 transitions. Word has length 92 [2022-03-20 02:56:38,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:38,654 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 391 transitions. [2022-03-20 02:56:38,654 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 02:56:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 391 transitions. [2022-03-20 02:56:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-20 02:56:38,655 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:38,656 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:38,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:56:38,656 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:38,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:38,656 INFO L85 PathProgramCache]: Analyzing trace with hash 982003108, now seen corresponding path program 1 times [2022-03-20 02:56:38,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:38,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357881061] [2022-03-20 02:56:38,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:38,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:38,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:38,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357881061] [2022-03-20 02:56:38,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357881061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:38,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:38,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:38,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814035623] [2022-03-20 02:56:38,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:38,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:38,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:38,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:38,787 INFO L87 Difference]: Start difference. First operand 246 states and 391 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 02:56:40,088 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 02:56:42,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:42,073 INFO L93 Difference]: Finished difference Result 541 states and 853 transitions. [2022-03-20 02:56:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:42,074 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 93 [2022-03-20 02:56:42,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:42,075 INFO L225 Difference]: With dead ends: 541 [2022-03-20 02:56:42,075 INFO L226 Difference]: Without dead ends: 321 [2022-03-20 02:56:42,076 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 02:56:42,077 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 139 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:42,077 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 02:56:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-20 02:56:42,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 246. [2022-03-20 02:56:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5892116182572613) internal successors, (383), 241 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:42,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 387 transitions. [2022-03-20 02:56:42,084 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 387 transitions. Word has length 93 [2022-03-20 02:56:42,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:42,084 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 387 transitions. [2022-03-20 02:56:42,085 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 02:56:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 387 transitions. [2022-03-20 02:56:42,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-20 02:56:42,086 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:42,086 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:56:42,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:56:42,087 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:42,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1343650049, now seen corresponding path program 1 times [2022-03-20 02:56:42,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:42,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995056126] [2022-03-20 02:56:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:42,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:42,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:42,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:42,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995056126] [2022-03-20 02:56:42,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995056126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:42,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:42,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:42,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661014468] [2022-03-20 02:56:42,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:42,209 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:42,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:42,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:42,210 INFO L87 Difference]: Start difference. First operand 246 states and 387 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:44,488 INFO L93 Difference]: Finished difference Result 541 states and 846 transitions. [2022-03-20 02:56:44,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:44,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-20 02:56:44,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:44,491 INFO L225 Difference]: With dead ends: 541 [2022-03-20 02:56:44,491 INFO L226 Difference]: Without dead ends: 321 [2022-03-20 02:56:44,492 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 02:56:44,492 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 137 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:44,492 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:56:44,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-20 02:56:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 246. [2022-03-20 02:56:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5726141078838174) internal successors, (379), 241 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:44,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 383 transitions. [2022-03-20 02:56:44,501 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 383 transitions. Word has length 94 [2022-03-20 02:56:44,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:44,501 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 383 transitions. [2022-03-20 02:56:44,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:44,501 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 383 transitions. [2022-03-20 02:56:44,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-20 02:56:44,502 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:44,502 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:44,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:56:44,502 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:44,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:44,503 INFO L85 PathProgramCache]: Analyzing trace with hash 115161398, now seen corresponding path program 1 times [2022-03-20 02:56:44,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:44,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137297138] [2022-03-20 02:56:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:44,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:56:44,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:44,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137297138] [2022-03-20 02:56:44,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137297138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:44,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:44,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:44,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310168572] [2022-03-20 02:56:44,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:44,688 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:44,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:44,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:44,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:44,689 INFO L87 Difference]: Start difference. First operand 246 states and 383 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 02:56:47,862 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 02:56:48,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:48,379 INFO L93 Difference]: Finished difference Result 617 states and 973 transitions. [2022-03-20 02:56:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:48,379 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 94 [2022-03-20 02:56:48,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:48,381 INFO L225 Difference]: With dead ends: 617 [2022-03-20 02:56:48,382 INFO L226 Difference]: Without dead ends: 397 [2022-03-20 02:56:48,382 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 02:56:48,383 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:48,383 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 336 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 02:56:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-20 02:56:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 310. [2022-03-20 02:56:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 305 states have (on average 1.5967213114754097) internal successors, (487), 305 states have internal predecessors, (487), 3 states have call successors, (3), 3 states 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 02:56:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 491 transitions. [2022-03-20 02:56:48,391 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 491 transitions. Word has length 94 [2022-03-20 02:56:48,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:48,391 INFO L478 AbstractCegarLoop]: Abstraction has 310 states and 491 transitions. [2022-03-20 02:56:48,391 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 02:56:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 491 transitions. [2022-03-20 02:56:48,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-20 02:56:48,392 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:48,393 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:48,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:56:48,393 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:48,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:48,393 INFO L85 PathProgramCache]: Analyzing trace with hash -917913434, now seen corresponding path program 1 times [2022-03-20 02:56:48,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:48,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26554123] [2022-03-20 02:56:48,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:48,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:56:48,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:48,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26554123] [2022-03-20 02:56:48,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26554123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:48,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:48,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:48,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840822503] [2022-03-20 02:56:48,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:48,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:48,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:48,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:48,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:48,513 INFO L87 Difference]: Start difference. First operand 310 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states 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 02:56:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:51,323 INFO L93 Difference]: Finished difference Result 709 states and 1123 transitions. [2022-03-20 02:56:51,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:51,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-03-20 02:56:51,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:51,326 INFO L225 Difference]: With dead ends: 709 [2022-03-20 02:56:51,326 INFO L226 Difference]: Without dead ends: 425 [2022-03-20 02:56:51,327 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 02:56:51,327 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 115 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:51,328 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 324 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:56:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-03-20 02:56:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 347. [2022-03-20 02:56:51,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.605263157894737) internal successors, (549), 342 states have internal predecessors, (549), 3 states have call successors, (3), 3 states 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 02:56:51,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 553 transitions. [2022-03-20 02:56:51,334 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 553 transitions. Word has length 99 [2022-03-20 02:56:51,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:51,334 INFO L478 AbstractCegarLoop]: Abstraction has 347 states and 553 transitions. [2022-03-20 02:56:51,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states 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 02:56:51,334 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 553 transitions. [2022-03-20 02:56:51,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 02:56:51,335 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:51,336 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:51,336 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:56:51,336 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:51,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1533946012, now seen corresponding path program 1 times [2022-03-20 02:56:51,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:51,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076472783] [2022-03-20 02:56:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:51,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:51,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:56:51,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:51,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076472783] [2022-03-20 02:56:51,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076472783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:51,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:51,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:51,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195951262] [2022-03-20 02:56:51,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:51,474 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:51,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:51,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:51,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:51,475 INFO L87 Difference]: Start difference. First operand 347 states and 553 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 02:56:53,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:53,637 INFO L93 Difference]: Finished difference Result 743 states and 1179 transitions. [2022-03-20 02:56:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:53,637 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 100 [2022-03-20 02:56:53,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:53,639 INFO L225 Difference]: With dead ends: 743 [2022-03-20 02:56:53,640 INFO L226 Difference]: Without dead ends: 422 [2022-03-20 02:56:53,640 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 02:56:53,641 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 114 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:53,641 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 02:56:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-03-20 02:56:53,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 347. [2022-03-20 02:56:53,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5994152046783625) internal successors, (547), 342 states have internal predecessors, (547), 3 states have call successors, (3), 3 states 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 02:56:53,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 551 transitions. [2022-03-20 02:56:53,649 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 551 transitions. Word has length 100 [2022-03-20 02:56:53,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:53,650 INFO L478 AbstractCegarLoop]: Abstraction has 347 states and 551 transitions. [2022-03-20 02:56:53,650 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 02:56:53,650 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 551 transitions. [2022-03-20 02:56:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-20 02:56:53,651 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:53,651 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:53,651 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:56:53,651 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:53,652 INFO L85 PathProgramCache]: Analyzing trace with hash -16281119, now seen corresponding path program 1 times [2022-03-20 02:56:53,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:53,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632719648] [2022-03-20 02:56:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:53,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:53,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:53,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632719648] [2022-03-20 02:56:53,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632719648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:53,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:53,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:53,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913903345] [2022-03-20 02:56:53,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:53,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:53,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:53,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:53,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:53,762 INFO L87 Difference]: Start difference. First operand 347 states and 551 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:55,234 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 02:56:56,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:56,764 INFO L93 Difference]: Finished difference Result 758 states and 1207 transitions. [2022-03-20 02:56:56,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:56,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-20 02:56:56,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:56,767 INFO L225 Difference]: With dead ends: 758 [2022-03-20 02:56:56,767 INFO L226 Difference]: Without dead ends: 437 [2022-03-20 02:56:56,768 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 02:56:56,768 INFO L913 BasicCegarLoop]: 149 mSDtfsCounter, 97 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:56,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 405 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:56:56,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-03-20 02:56:56,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 364. [2022-03-20 02:56:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 359 states have (on average 1.5905292479108635) internal successors, (571), 359 states have internal predecessors, (571), 3 states have call successors, (3), 3 states 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 02:56:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 575 transitions. [2022-03-20 02:56:56,778 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 575 transitions. Word has length 108 [2022-03-20 02:56:56,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:56,778 INFO L478 AbstractCegarLoop]: Abstraction has 364 states and 575 transitions. [2022-03-20 02:56:56,778 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:56,778 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 575 transitions. [2022-03-20 02:56:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-20 02:56:56,779 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:56,780 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:56:56,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:56:56,780 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:56,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:56,780 INFO L85 PathProgramCache]: Analyzing trace with hash 836154803, now seen corresponding path program 1 times [2022-03-20 02:56:56,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:56,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113672846] [2022-03-20 02:56:56,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:56,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:56,916 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-20 02:56:56,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:56,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113672846] [2022-03-20 02:56:56,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113672846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:56,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:56,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:56,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502869644] [2022-03-20 02:56:56,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:56,918 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:56,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:56,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:56,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:56,919 INFO L87 Difference]: Start difference. First operand 364 states and 575 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:58,888 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 02:57:00,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:00,969 INFO L93 Difference]: Finished difference Result 726 states and 1155 transitions. [2022-03-20 02:57:00,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:00,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-20 02:57:00,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:00,972 INFO L225 Difference]: With dead ends: 726 [2022-03-20 02:57:00,972 INFO L226 Difference]: Without dead ends: 388 [2022-03-20 02:57:00,973 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 02:57:00,973 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 29 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:00,973 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 489 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:57:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-03-20 02:57:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 369. [2022-03-20 02:57:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5934065934065933) internal successors, (580), 364 states have internal predecessors, (580), 3 states have call successors, (3), 3 states 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 02:57:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 584 transitions. [2022-03-20 02:57:00,982 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 584 transitions. Word has length 108 [2022-03-20 02:57:00,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:00,982 INFO L478 AbstractCegarLoop]: Abstraction has 369 states and 584 transitions. [2022-03-20 02:57:00,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:00,983 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 584 transitions. [2022-03-20 02:57:00,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 02:57:00,984 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:00,984 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] [2022-03-20 02:57:00,984 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:57:00,984 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:00,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:00,985 INFO L85 PathProgramCache]: Analyzing trace with hash -566544152, now seen corresponding path program 1 times [2022-03-20 02:57:00,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:00,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462447516] [2022-03-20 02:57:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:00,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:01,103 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 02:57:01,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:01,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462447516] [2022-03-20 02:57:01,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462447516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:01,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:01,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:01,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105390690] [2022-03-20 02:57:01,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:01,104 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:01,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:01,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:01,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:01,105 INFO L87 Difference]: Start difference. First operand 369 states and 584 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:02,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:04,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:05,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:05,398 INFO L93 Difference]: Finished difference Result 786 states and 1240 transitions. [2022-03-20 02:57:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-20 02:57:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:05,401 INFO L225 Difference]: With dead ends: 786 [2022-03-20 02:57:05,401 INFO L226 Difference]: Without dead ends: 443 [2022-03-20 02:57:05,402 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 02:57:05,402 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 140 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:05,403 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 342 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 02:57:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-03-20 02:57:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 369. [2022-03-20 02:57:05,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5741758241758241) internal successors, (573), 364 states have internal predecessors, (573), 3 states have call successors, (3), 3 states 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 02:57:05,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 577 transitions. [2022-03-20 02:57:05,411 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 577 transitions. Word has length 121 [2022-03-20 02:57:05,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:05,411 INFO L478 AbstractCegarLoop]: Abstraction has 369 states and 577 transitions. [2022-03-20 02:57:05,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:05,411 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 577 transitions. [2022-03-20 02:57:05,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 02:57:05,426 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:05,426 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2022-03-20 02:57:05,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:57:05,426 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:05,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:05,427 INFO L85 PathProgramCache]: Analyzing trace with hash -859013089, now seen corresponding path program 1 times [2022-03-20 02:57:05,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:05,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510639963] [2022-03-20 02:57:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:05,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:05,553 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-20 02:57:05,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:05,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510639963] [2022-03-20 02:57:05,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510639963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:05,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:05,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:57:05,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646125737] [2022-03-20 02:57:05,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:05,554 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:57:05,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:05,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:57:05,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:05,554 INFO L87 Difference]: Start difference. First operand 369 states and 577 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:07,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:09,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:09,185 INFO L93 Difference]: Finished difference Result 722 states and 1137 transitions. [2022-03-20 02:57:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:57:09,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 02:57:09,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:09,187 INFO L225 Difference]: With dead ends: 722 [2022-03-20 02:57:09,187 INFO L226 Difference]: Without dead ends: 379 [2022-03-20 02:57:09,188 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:57:09,189 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 143 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:09,189 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 355 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:57:09,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-03-20 02:57:09,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2022-03-20 02:57:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5656836461126005) internal successors, (584), 373 states have internal predecessors, (584), 3 states have call successors, (3), 3 states 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 02:57:09,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 588 transitions. [2022-03-20 02:57:09,197 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 588 transitions. Word has length 122 [2022-03-20 02:57:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:09,197 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 588 transitions. [2022-03-20 02:57:09,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:09,198 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 588 transitions. [2022-03-20 02:57:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 02:57:09,199 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:09,199 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:09,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:57:09,199 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:09,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:09,200 INFO L85 PathProgramCache]: Analyzing trace with hash -870728149, now seen corresponding path program 1 times [2022-03-20 02:57:09,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:09,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394259083] [2022-03-20 02:57:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:09,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:09,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-03-20 02:57:09,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:09,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394259083] [2022-03-20 02:57:09,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394259083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:09,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:09,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:09,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060450691] [2022-03-20 02:57:09,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:09,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:09,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:09,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:09,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:09,338 INFO L87 Difference]: Start difference. First operand 378 states and 588 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:11,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:11,935 INFO L93 Difference]: Finished difference Result 820 states and 1279 transitions. [2022-03-20 02:57:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:11,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 02:57:11,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:11,938 INFO L225 Difference]: With dead ends: 820 [2022-03-20 02:57:11,938 INFO L226 Difference]: Without dead ends: 468 [2022-03-20 02:57:11,939 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 02:57:11,939 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 96 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:11,940 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 487 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:57:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-20 02:57:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 396. [2022-03-20 02:57:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.5549872122762147) internal successors, (608), 391 states have internal predecessors, (608), 3 states have call successors, (3), 3 states 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 02:57:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 612 transitions. [2022-03-20 02:57:11,950 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 612 transitions. Word has length 122 [2022-03-20 02:57:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:11,950 INFO L478 AbstractCegarLoop]: Abstraction has 396 states and 612 transitions. [2022-03-20 02:57:11,950 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 612 transitions. [2022-03-20 02:57:11,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 02:57:11,952 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:11,952 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:11,952 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:57:11,952 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:11,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash -18292227, now seen corresponding path program 1 times [2022-03-20 02:57:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:11,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266147324] [2022-03-20 02:57:11,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:11,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-20 02:57:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:12,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266147324] [2022-03-20 02:57:12,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266147324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:12,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:12,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:12,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234771081] [2022-03-20 02:57:12,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:12,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:12,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:12,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:12,066 INFO L87 Difference]: Start difference. First operand 396 states and 612 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:14,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:15,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:15,102 INFO L93 Difference]: Finished difference Result 783 states and 1216 transitions. [2022-03-20 02:57:15,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:15,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 02:57:15,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:15,103 INFO L225 Difference]: With dead ends: 783 [2022-03-20 02:57:15,104 INFO L226 Difference]: Without dead ends: 413 [2022-03-20 02:57:15,104 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 02:57:15,105 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 31 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:15,105 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 495 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:57:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-03-20 02:57:15,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 396. [2022-03-20 02:57:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.5524296675191815) internal successors, (607), 391 states have internal predecessors, (607), 3 states have call successors, (3), 3 states 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 02:57:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 611 transitions. [2022-03-20 02:57:15,114 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 611 transitions. Word has length 122 [2022-03-20 02:57:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:15,115 INFO L478 AbstractCegarLoop]: Abstraction has 396 states and 611 transitions. [2022-03-20 02:57:15,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 611 transitions. [2022-03-20 02:57:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 02:57:15,116 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:15,116 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:15,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:57:15,117 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:15,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:15,117 INFO L85 PathProgramCache]: Analyzing trace with hash -424002897, now seen corresponding path program 1 times [2022-03-20 02:57:15,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:15,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86567851] [2022-03-20 02:57:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:15,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-20 02:57:15,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:15,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86567851] [2022-03-20 02:57:15,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86567851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:15,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:15,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:15,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535833224] [2022-03-20 02:57:15,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:15,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:15,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:15,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:15,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:15,226 INFO L87 Difference]: Start difference. First operand 396 states and 611 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:17,114 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 02:57:17,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:17,979 INFO L93 Difference]: Finished difference Result 773 states and 1202 transitions. [2022-03-20 02:57:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:17,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 02:57:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:17,981 INFO L225 Difference]: With dead ends: 773 [2022-03-20 02:57:17,981 INFO L226 Difference]: Without dead ends: 403 [2022-03-20 02:57:17,982 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 02:57:17,982 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:17,982 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 507 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:57:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-03-20 02:57:17,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 396. [2022-03-20 02:57:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.5498721227621484) internal successors, (606), 391 states have internal predecessors, (606), 3 states have call successors, (3), 3 states 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 02:57:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 610 transitions. [2022-03-20 02:57:17,991 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 610 transitions. Word has length 124 [2022-03-20 02:57:17,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:17,991 INFO L478 AbstractCegarLoop]: Abstraction has 396 states and 610 transitions. [2022-03-20 02:57:17,992 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 610 transitions. [2022-03-20 02:57:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 02:57:17,993 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:17,993 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 02:57:17,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:57:17,993 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:17,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:17,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2110478748, now seen corresponding path program 1 times [2022-03-20 02:57:17,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:17,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881279728] [2022-03-20 02:57:17,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:17,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:57:18,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:18,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881279728] [2022-03-20 02:57:18,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881279728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:18,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:18,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:18,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75661464] [2022-03-20 02:57:18,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:18,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:18,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:18,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:18,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:18,116 INFO L87 Difference]: Start difference. First operand 396 states and 610 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 02:57:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:20,236 INFO L93 Difference]: Finished difference Result 856 states and 1323 transitions. [2022-03-20 02:57:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:20,237 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 02:57:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:20,239 INFO L225 Difference]: With dead ends: 856 [2022-03-20 02:57:20,239 INFO L226 Difference]: Without dead ends: 486 [2022-03-20 02:57:20,239 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 02:57:20,240 INFO L913 BasicCegarLoop]: 175 mSDtfsCounter, 96 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:20,240 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 457 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 02:57:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-03-20 02:57:20,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 396. [2022-03-20 02:57:20,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.5498721227621484) internal successors, (606), 391 states have internal predecessors, (606), 3 states have call successors, (3), 3 states 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 02:57:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 610 transitions. [2022-03-20 02:57:20,250 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 610 transitions. Word has length 130 [2022-03-20 02:57:20,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:20,250 INFO L478 AbstractCegarLoop]: Abstraction has 396 states and 610 transitions. [2022-03-20 02:57:20,250 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 02:57:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 610 transitions. [2022-03-20 02:57:20,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 02:57:20,251 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:20,251 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] [2022-03-20 02:57:20,251 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:57:20,252 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:20,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1332052626, now seen corresponding path program 1 times [2022-03-20 02:57:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:20,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555717356] [2022-03-20 02:57:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:20,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:20,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:20,372 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 02:57:20,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:20,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555717356] [2022-03-20 02:57:20,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555717356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:20,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:20,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:20,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131505839] [2022-03-20 02:57:20,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:20,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:20,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:20,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:20,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:20,374 INFO L87 Difference]: Start difference. First operand 396 states and 610 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states 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 02:57:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:22,626 INFO L93 Difference]: Finished difference Result 880 states and 1356 transitions. [2022-03-20 02:57:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:22,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have 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 02:57:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:22,629 INFO L225 Difference]: With dead ends: 880 [2022-03-20 02:57:22,629 INFO L226 Difference]: Without dead ends: 510 [2022-03-20 02:57:22,629 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 02:57:22,630 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 106 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:22,630 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 347 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:57:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-03-20 02:57:22,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 439. [2022-03-20 02:57:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 434 states have (on average 1.5576036866359446) internal successors, (676), 434 states have internal predecessors, (676), 3 states have call successors, (3), 3 states 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 02:57:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 680 transitions. [2022-03-20 02:57:22,640 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 680 transitions. Word has length 130 [2022-03-20 02:57:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:22,641 INFO L478 AbstractCegarLoop]: Abstraction has 439 states and 680 transitions. [2022-03-20 02:57:22,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states 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 02:57:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 680 transitions. [2022-03-20 02:57:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 02:57:22,642 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:22,642 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 02:57:22,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:57:22,643 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash -617730598, now seen corresponding path program 1 times [2022-03-20 02:57:22,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:22,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488356304] [2022-03-20 02:57:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:22,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:22,759 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:57:22,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:22,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488356304] [2022-03-20 02:57:22,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488356304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:22,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:22,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:22,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765966664] [2022-03-20 02:57:22,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:22,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:22,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:22,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:22,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:22,761 INFO L87 Difference]: Start difference. First operand 439 states and 680 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 02:57:25,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:25,537 INFO L93 Difference]: Finished difference Result 941 states and 1461 transitions. [2022-03-20 02:57:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:25,537 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 02:57:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:25,540 INFO L225 Difference]: With dead ends: 941 [2022-03-20 02:57:25,540 INFO L226 Difference]: Without dead ends: 528 [2022-03-20 02:57:25,541 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 02:57:25,541 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 95 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:25,542 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 639 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:57:25,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-03-20 02:57:25,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 438. [2022-03-20 02:57:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5588914549653579) internal successors, (675), 433 states have internal predecessors, (675), 3 states have call successors, (3), 3 states 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 02:57:25,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 679 transitions. [2022-03-20 02:57:25,553 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 679 transitions. Word has length 130 [2022-03-20 02:57:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:25,554 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 679 transitions. [2022-03-20 02:57:25,554 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 02:57:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 679 transitions. [2022-03-20 02:57:25,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:57:25,556 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:25,556 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 02:57:25,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:57:25,556 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:25,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash -650824134, now seen corresponding path program 1 times [2022-03-20 02:57:25,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:25,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516905200] [2022-03-20 02:57:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:25,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:25,718 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 02:57:25,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:25,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516905200] [2022-03-20 02:57:25,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516905200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:25,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:25,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:25,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554371018] [2022-03-20 02:57:25,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:25,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:25,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:25,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:25,720 INFO L87 Difference]: Start difference. First operand 438 states and 679 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 02:57:27,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:27,877 INFO L93 Difference]: Finished difference Result 934 states and 1450 transitions. [2022-03-20 02:57:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:27,877 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 02:57:27,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:27,879 INFO L225 Difference]: With dead ends: 934 [2022-03-20 02:57:27,879 INFO L226 Difference]: Without dead ends: 522 [2022-03-20 02:57:27,879 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 02:57:27,880 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 61 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:27,880 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 465 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 02:57:27,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-03-20 02:57:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 481. [2022-03-20 02:57:27,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5588235294117647) internal successors, (742), 476 states have internal predecessors, (742), 3 states have call successors, (3), 3 states 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 02:57:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 746 transitions. [2022-03-20 02:57:27,891 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 746 transitions. Word has length 131 [2022-03-20 02:57:27,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:27,891 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 746 transitions. [2022-03-20 02:57:27,891 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 02:57:27,891 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 746 transitions. [2022-03-20 02:57:27,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:57:27,892 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:27,893 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 02:57:27,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:57:27,893 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:27,893 INFO L85 PathProgramCache]: Analyzing trace with hash 674032060, now seen corresponding path program 1 times [2022-03-20 02:57:27,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:27,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294355452] [2022-03-20 02:57:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:27,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 02:57:28,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:28,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294355452] [2022-03-20 02:57:28,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294355452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:28,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:28,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610198655] [2022-03-20 02:57:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:28,018 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:28,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:28,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:28,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:28,019 INFO L87 Difference]: Start difference. First operand 481 states and 746 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 02:57:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:30,613 INFO L93 Difference]: Finished difference Result 982 states and 1527 transitions. [2022-03-20 02:57:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:30,614 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 131 [2022-03-20 02:57:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:30,615 INFO L225 Difference]: With dead ends: 982 [2022-03-20 02:57:30,615 INFO L226 Difference]: Without dead ends: 527 [2022-03-20 02:57:30,616 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 02:57:30,616 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:30,617 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 581 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:57:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-03-20 02:57:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 505. [2022-03-20 02:57:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.556) internal successors, (778), 500 states have internal predecessors, (778), 3 states have call successors, (3), 3 states 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 02:57:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 782 transitions. [2022-03-20 02:57:30,628 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 782 transitions. Word has length 131 [2022-03-20 02:57:30,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:30,628 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 782 transitions. [2022-03-20 02:57:30,628 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 02:57:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 782 transitions. [2022-03-20 02:57:30,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 02:57:30,630 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:30,630 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] [2022-03-20 02:57:30,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 02:57:30,630 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:30,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:30,631 INFO L85 PathProgramCache]: Analyzing trace with hash -871971578, now seen corresponding path program 1 times [2022-03-20 02:57:30,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:30,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248078044] [2022-03-20 02:57:30,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:30,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:30,746 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 02:57:30,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:30,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248078044] [2022-03-20 02:57:30,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248078044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:30,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:30,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:30,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401456715] [2022-03-20 02:57:30,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:30,747 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:30,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:30,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:30,748 INFO L87 Difference]: Start difference. First operand 505 states and 782 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 02:57:32,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:33,505 INFO L93 Difference]: Finished difference Result 1025 states and 1588 transitions. [2022-03-20 02:57:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:33,505 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 143 [2022-03-20 02:57:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:33,507 INFO L225 Difference]: With dead ends: 1025 [2022-03-20 02:57:33,507 INFO L226 Difference]: Without dead ends: 546 [2022-03-20 02:57:33,507 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 02:57:33,508 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 71 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:33,508 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 467 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:57:33,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-03-20 02:57:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 505. [2022-03-20 02:57:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.554) internal successors, (777), 500 states have internal predecessors, (777), 3 states have call successors, (3), 3 states 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 02:57:33,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 781 transitions. [2022-03-20 02:57:33,519 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 781 transitions. Word has length 143 [2022-03-20 02:57:33,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:33,520 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 781 transitions. [2022-03-20 02:57:33,520 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 02:57:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 781 transitions. [2022-03-20 02:57:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 02:57:33,521 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:33,521 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] [2022-03-20 02:57:33,521 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:57:33,522 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1420874337, now seen corresponding path program 1 times [2022-03-20 02:57:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:33,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174061042] [2022-03-20 02:57:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:33,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:33,689 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 02:57:33,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:33,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174061042] [2022-03-20 02:57:33,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174061042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:33,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:33,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:33,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110799904] [2022-03-20 02:57:33,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:33,690 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:33,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:33,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:33,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:33,691 INFO L87 Difference]: Start difference. First operand 505 states and 781 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 02:57:35,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:36,160 INFO L93 Difference]: Finished difference Result 1023 states and 1584 transitions. [2022-03-20 02:57:36,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:36,161 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 02:57:36,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:36,163 INFO L225 Difference]: With dead ends: 1023 [2022-03-20 02:57:36,163 INFO L226 Difference]: Without dead ends: 544 [2022-03-20 02:57:36,163 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 02:57:36,164 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 68 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:36,164 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 469 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:57:36,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-03-20 02:57:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 505. [2022-03-20 02:57:36,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.552) internal successors, (776), 500 states have internal predecessors, (776), 3 states have call successors, (3), 3 states 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 02:57:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 780 transitions. [2022-03-20 02:57:36,175 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 780 transitions. Word has length 144 [2022-03-20 02:57:36,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:36,176 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 780 transitions. [2022-03-20 02:57:36,176 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 02:57:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 780 transitions. [2022-03-20 02:57:36,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 02:57:36,177 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:36,177 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:36,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:57:36,178 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:36,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:36,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1083559536, now seen corresponding path program 1 times [2022-03-20 02:57:36,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:36,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307164504] [2022-03-20 02:57:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 02:57:36,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:36,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307164504] [2022-03-20 02:57:36,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307164504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:36,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:36,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:36,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057903136] [2022-03-20 02:57:36,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:36,300 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:36,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:36,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:36,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:36,301 INFO L87 Difference]: Start difference. First operand 505 states and 780 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:37,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:39,774 INFO L93 Difference]: Finished difference Result 1022 states and 1581 transitions. [2022-03-20 02:57:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:39,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 02:57:39,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:39,776 INFO L225 Difference]: With dead ends: 1022 [2022-03-20 02:57:39,776 INFO L226 Difference]: Without dead ends: 543 [2022-03-20 02:57:39,777 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 02:57:39,777 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 80 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:39,778 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 469 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:57:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-03-20 02:57:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 505. [2022-03-20 02:57:39,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.55) internal successors, (775), 500 states have internal predecessors, (775), 3 states have call successors, (3), 3 states 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 02:57:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 779 transitions. [2022-03-20 02:57:39,799 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 779 transitions. Word has length 145 [2022-03-20 02:57:39,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:39,799 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 779 transitions. [2022-03-20 02:57:39,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:39,799 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 779 transitions. [2022-03-20 02:57:39,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 02:57:39,801 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:39,801 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:39,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:57:39,801 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:39,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:39,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1610336654, now seen corresponding path program 1 times [2022-03-20 02:57:39,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:39,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827098738] [2022-03-20 02:57:39,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:39,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:39,939 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 02:57:39,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:39,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827098738] [2022-03-20 02:57:39,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827098738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:39,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:39,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:39,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306397919] [2022-03-20 02:57:39,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:39,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:39,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:39,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:39,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:39,941 INFO L87 Difference]: Start difference. First operand 505 states and 779 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:42,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:42,218 INFO L93 Difference]: Finished difference Result 1005 states and 1555 transitions. [2022-03-20 02:57:42,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:42,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 02:57:42,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:42,220 INFO L225 Difference]: With dead ends: 1005 [2022-03-20 02:57:42,220 INFO L226 Difference]: Without dead ends: 526 [2022-03-20 02:57:42,221 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 02:57:42,222 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 39 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:42,222 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 581 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:57:42,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-03-20 02:57:42,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 505. [2022-03-20 02:57:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.548) internal successors, (774), 500 states have internal predecessors, (774), 3 states have call successors, (3), 3 states 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 02:57:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 778 transitions. [2022-03-20 02:57:42,233 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 778 transitions. Word has length 145 [2022-03-20 02:57:42,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:42,233 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 778 transitions. [2022-03-20 02:57:42,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 778 transitions. [2022-03-20 02:57:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 02:57:42,234 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:42,235 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 02:57:42,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:57:42,235 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:42,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1998924906, now seen corresponding path program 1 times [2022-03-20 02:57:42,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:42,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381997101] [2022-03-20 02:57:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:42,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:57:42,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:42,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381997101] [2022-03-20 02:57:42,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381997101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:42,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:42,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:42,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908726700] [2022-03-20 02:57:42,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:42,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:42,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:42,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:42,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:42,363 INFO L87 Difference]: Start difference. First operand 505 states and 778 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states 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 02:57:45,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:45,602 INFO L93 Difference]: Finished difference Result 1012 states and 1565 transitions. [2022-03-20 02:57:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have 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 02:57:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:45,604 INFO L225 Difference]: With dead ends: 1012 [2022-03-20 02:57:45,604 INFO L226 Difference]: Without dead ends: 533 [2022-03-20 02:57:45,605 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 02:57:45,606 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 77 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:45,606 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 481 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:57:45,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-03-20 02:57:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 505. [2022-03-20 02:57:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.546) internal successors, (773), 500 states have internal predecessors, (773), 3 states have call successors, (3), 3 states 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 02:57:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 777 transitions. [2022-03-20 02:57:45,617 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 777 transitions. Word has length 146 [2022-03-20 02:57:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:45,617 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 777 transitions. [2022-03-20 02:57:45,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states 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 02:57:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 777 transitions. [2022-03-20 02:57:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 02:57:45,619 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:45,619 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:45,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:57:45,619 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1349774437, now seen corresponding path program 1 times [2022-03-20 02:57:45,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:45,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970319065] [2022-03-20 02:57:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:45,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:57:45,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:45,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970319065] [2022-03-20 02:57:45,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970319065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:45,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:45,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:45,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26134658] [2022-03-20 02:57:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:45,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:45,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:45,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:45,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:45,742 INFO L87 Difference]: Start difference. First operand 505 states and 777 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:48,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:48,329 INFO L93 Difference]: Finished difference Result 1101 states and 1695 transitions. [2022-03-20 02:57:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:48,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 02:57:48,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:48,332 INFO L225 Difference]: With dead ends: 1101 [2022-03-20 02:57:48,332 INFO L226 Difference]: Without dead ends: 622 [2022-03-20 02:57:48,333 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 02:57:48,333 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 122 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:48,334 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:57:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-03-20 02:57:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 533. [2022-03-20 02:57:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.5378787878787878) internal successors, (812), 528 states have internal predecessors, (812), 3 states have call successors, (3), 3 states 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 02:57:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 816 transitions. [2022-03-20 02:57:48,347 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 816 transitions. Word has length 146 [2022-03-20 02:57:48,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:48,347 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 816 transitions. [2022-03-20 02:57:48,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:48,347 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 816 transitions. [2022-03-20 02:57:48,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 02:57:48,349 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:48,349 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 02:57:48,349 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 02:57:48,349 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:48,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:48,349 INFO L85 PathProgramCache]: Analyzing trace with hash 92521640, now seen corresponding path program 1 times [2022-03-20 02:57:48,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:48,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187321576] [2022-03-20 02:57:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:48,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:57:48,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:48,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187321576] [2022-03-20 02:57:48,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187321576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:48,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:48,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:48,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945844314] [2022-03-20 02:57:48,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:48,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:48,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:48,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:48,489 INFO L87 Difference]: Start difference. First operand 533 states and 816 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states 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 02:57:51,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:51,871 INFO L93 Difference]: Finished difference Result 1051 states and 1617 transitions. [2022-03-20 02:57:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:51,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have 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 02:57:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:51,877 INFO L225 Difference]: With dead ends: 1051 [2022-03-20 02:57:51,877 INFO L226 Difference]: Without dead ends: 544 [2022-03-20 02:57:51,878 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 02:57:51,878 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 36 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:51,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 567 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:57:51,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-03-20 02:57:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 533. [2022-03-20 02:57:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.5359848484848484) internal successors, (811), 528 states have internal predecessors, (811), 3 states have call successors, (3), 3 states 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 02:57:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 815 transitions. [2022-03-20 02:57:51,890 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 815 transitions. Word has length 146 [2022-03-20 02:57:51,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:51,890 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 815 transitions. [2022-03-20 02:57:51,890 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states 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 02:57:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 815 transitions. [2022-03-20 02:57:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 02:57:51,892 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:51,892 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:51,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 02:57:51,892 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:51,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:51,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1928919604, now seen corresponding path program 1 times [2022-03-20 02:57:51,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:51,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134960278] [2022-03-20 02:57:51,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:51,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:57:52,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:52,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134960278] [2022-03-20 02:57:52,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134960278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:52,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:52,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:52,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925209116] [2022-03-20 02:57:52,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:52,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:52,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:52,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:52,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:52,008 INFO L87 Difference]: Start difference. First operand 533 states and 815 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:53,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:55,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:55,498 INFO L93 Difference]: Finished difference Result 1114 states and 1701 transitions. [2022-03-20 02:57:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:55,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-20 02:57:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:55,500 INFO L225 Difference]: With dead ends: 1114 [2022-03-20 02:57:55,500 INFO L226 Difference]: Without dead ends: 607 [2022-03-20 02:57:55,501 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 02:57:55,501 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 121 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:55,502 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 02:57:55,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-03-20 02:57:55,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 533. [2022-03-20 02:57:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.5227272727272727) internal successors, (804), 528 states have internal predecessors, (804), 3 states have call successors, (3), 3 states 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 02:57:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 808 transitions. [2022-03-20 02:57:55,515 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 808 transitions. Word has length 147 [2022-03-20 02:57:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:55,515 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 808 transitions. [2022-03-20 02:57:55,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 808 transitions. [2022-03-20 02:57:55,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-20 02:57:55,517 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:55,517 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1] [2022-03-20 02:57:55,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:57:55,517 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:55,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1619295747, now seen corresponding path program 1 times [2022-03-20 02:57:55,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:55,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181882739] [2022-03-20 02:57:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:55,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:57:55,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:55,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181882739] [2022-03-20 02:57:55,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181882739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:55,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:55,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199652116] [2022-03-20 02:57:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:55,633 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:55,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:55,634 INFO L87 Difference]: Start difference. First operand 533 states and 808 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states 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 02:57:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:58,070 INFO L93 Difference]: Finished difference Result 1060 states and 1612 transitions. [2022-03-20 02:57:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-20 02:57:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:58,073 INFO L225 Difference]: With dead ends: 1060 [2022-03-20 02:57:58,073 INFO L226 Difference]: Without dead ends: 553 [2022-03-20 02:57:58,074 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 02:57:58,074 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 54 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:58,074 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 511 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:57:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-20 02:57:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 533. [2022-03-20 02:57:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.5208333333333333) internal successors, (803), 528 states have internal predecessors, (803), 3 states have call successors, (3), 3 states 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 02:57:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 807 transitions. [2022-03-20 02:57:58,086 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 807 transitions. Word has length 152 [2022-03-20 02:57:58,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:58,086 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 807 transitions. [2022-03-20 02:57:58,086 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states 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 02:57:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 807 transitions. [2022-03-20 02:57:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-20 02:57:58,088 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:58,088 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1] [2022-03-20 02:57:58,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 02:57:58,088 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:58,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:58,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1286377535, now seen corresponding path program 1 times [2022-03-20 02:57:58,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:58,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094434488] [2022-03-20 02:57:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:58,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:58,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 02:57:58,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:58,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094434488] [2022-03-20 02:57:58,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094434488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:58,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:58,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:58,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315647187] [2022-03-20 02:57:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:58,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:58,228 INFO L87 Difference]: Start difference. First operand 533 states and 807 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 02:58:00,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:00,692 INFO L93 Difference]: Finished difference Result 1121 states and 1700 transitions. [2022-03-20 02:58:00,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:00,693 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 152 [2022-03-20 02:58:00,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:00,695 INFO L225 Difference]: With dead ends: 1121 [2022-03-20 02:58:00,695 INFO L226 Difference]: Without dead ends: 614 [2022-03-20 02:58:00,696 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 02:58:00,696 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 84 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:00,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 567 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:58:00,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-03-20 02:58:00,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 533. [2022-03-20 02:58:00,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.5208333333333333) internal successors, (803), 528 states have internal predecessors, (803), 3 states have call successors, (3), 3 states 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 02:58:00,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 807 transitions. [2022-03-20 02:58:00,709 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 807 transitions. Word has length 152 [2022-03-20 02:58:00,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:00,709 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 807 transitions. [2022-03-20 02:58:00,709 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 02:58:00,709 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 807 transitions. [2022-03-20 02:58:00,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 02:58:00,711 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:00,711 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:00,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:58:00,711 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash -264065709, now seen corresponding path program 1 times [2022-03-20 02:58:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:00,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553329939] [2022-03-20 02:58:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:00,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 02:58:00,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:00,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553329939] [2022-03-20 02:58:00,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553329939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:00,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:00,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:00,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502935845] [2022-03-20 02:58:00,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:00,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:00,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:00,845 INFO L87 Difference]: Start difference. First operand 533 states and 807 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:02,663 INFO L93 Difference]: Finished difference Result 1157 states and 1753 transitions. [2022-03-20 02:58:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:02,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 02:58:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:02,665 INFO L225 Difference]: With dead ends: 1157 [2022-03-20 02:58:02,665 INFO L226 Difference]: Without dead ends: 650 [2022-03-20 02:58:02,666 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 02:58:02,666 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 114 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:02,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 330 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:58:02,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-03-20 02:58:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 568. [2022-03-20 02:58:02,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 563 states have (on average 1.5186500888099468) internal successors, (855), 563 states have internal predecessors, (855), 3 states have call successors, (3), 3 states 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 02:58:02,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 859 transitions. [2022-03-20 02:58:02,679 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 859 transitions. Word has length 153 [2022-03-20 02:58:02,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:02,679 INFO L478 AbstractCegarLoop]: Abstraction has 568 states and 859 transitions. [2022-03-20 02:58:02,679 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 859 transitions. [2022-03-20 02:58:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 02:58:02,681 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:02,681 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:02,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:58:02,681 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:02,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:02,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1420813493, now seen corresponding path program 1 times [2022-03-20 02:58:02,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:02,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028783240] [2022-03-20 02:58:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:02,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 02:58:02,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:02,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028783240] [2022-03-20 02:58:02,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028783240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:02,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:02,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:58:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700086894] [2022-03-20 02:58:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:02,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:58:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:58:02,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:58:02,797 INFO L87 Difference]: Start difference. First operand 568 states and 859 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:04,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:04,257 INFO L93 Difference]: Finished difference Result 1605 states and 2446 transitions. [2022-03-20 02:58:04,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:58:04,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 02:58:04,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:04,261 INFO L225 Difference]: With dead ends: 1605 [2022-03-20 02:58:04,261 INFO L226 Difference]: Without dead ends: 1063 [2022-03-20 02:58:04,262 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 02:58:04,262 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 128 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:04,262 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 438 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 02:58:04,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-03-20 02:58:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061. [2022-03-20 02:58:04,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1056 states have (on average 1.5208333333333333) internal successors, (1606), 1056 states have internal predecessors, (1606), 3 states have call successors, (3), 3 states 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 02:58:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1610 transitions. [2022-03-20 02:58:04,283 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1610 transitions. Word has length 153 [2022-03-20 02:58:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:04,283 INFO L478 AbstractCegarLoop]: Abstraction has 1061 states and 1610 transitions. [2022-03-20 02:58:04,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1610 transitions. [2022-03-20 02:58:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 02:58:04,285 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:04,285 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:04,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 02:58:04,285 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:04,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:04,286 INFO L85 PathProgramCache]: Analyzing trace with hash -721046985, now seen corresponding path program 1 times [2022-03-20 02:58:04,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:04,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144536707] [2022-03-20 02:58:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:04,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-20 02:58:04,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:04,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144536707] [2022-03-20 02:58:04,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144536707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:04,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:04,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:58:04,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288437817] [2022-03-20 02:58:04,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:04,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:58:04,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:04,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:58:04,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:58:04,403 INFO L87 Difference]: Start difference. First operand 1061 states and 1610 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:05,949 INFO L93 Difference]: Finished difference Result 2123 states and 3227 transitions. [2022-03-20 02:58:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:58:05,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 02:58:05,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:05,954 INFO L225 Difference]: With dead ends: 2123 [2022-03-20 02:58:05,954 INFO L226 Difference]: Without dead ends: 1088 [2022-03-20 02:58:05,955 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 02:58:05,956 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:05,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 02:58:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-03-20 02:58:05,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1088. [2022-03-20 02:58:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1083 states have (on average 1.5152354570637119) internal successors, (1641), 1083 states have internal predecessors, (1641), 3 states have call successors, (3), 3 states 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 02:58:05,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1645 transitions. [2022-03-20 02:58:05,982 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1645 transitions. Word has length 153 [2022-03-20 02:58:05,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:05,982 INFO L478 AbstractCegarLoop]: Abstraction has 1088 states and 1645 transitions. [2022-03-20 02:58:05,982 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1645 transitions. [2022-03-20 02:58:05,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 02:58:05,985 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:05,985 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:05,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 02:58:05,985 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1155552583, now seen corresponding path program 1 times [2022-03-20 02:58:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:05,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788056119] [2022-03-20 02:58:05,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:05,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:06,088 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-20 02:58:06,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:06,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788056119] [2022-03-20 02:58:06,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788056119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:06,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:06,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:58:06,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755777217] [2022-03-20 02:58:06,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:06,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:58:06,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:06,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:58:06,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:58:06,090 INFO L87 Difference]: Start difference. First operand 1088 states and 1645 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:07,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:08,266 INFO L93 Difference]: Finished difference Result 2152 states and 3263 transitions. [2022-03-20 02:58:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:58:08,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 02:58:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:08,270 INFO L225 Difference]: With dead ends: 2152 [2022-03-20 02:58:08,270 INFO L226 Difference]: Without dead ends: 1090 [2022-03-20 02:58:08,271 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 02:58:08,272 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:08,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:58:08,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2022-03-20 02:58:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1090. [2022-03-20 02:58:08,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1085 states have (on average 1.5142857142857142) internal successors, (1643), 1085 states have internal predecessors, (1643), 3 states have call successors, (3), 3 states 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 02:58:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1647 transitions. [2022-03-20 02:58:08,295 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1647 transitions. Word has length 153 [2022-03-20 02:58:08,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:08,295 INFO L478 AbstractCegarLoop]: Abstraction has 1090 states and 1647 transitions. [2022-03-20 02:58:08,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:08,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1647 transitions. [2022-03-20 02:58:08,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 02:58:08,297 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:08,297 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:08,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:58:08,298 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:08,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1929997945, now seen corresponding path program 1 times [2022-03-20 02:58:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:08,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644588823] [2022-03-20 02:58:08,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:08,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 02:58:08,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:08,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644588823] [2022-03-20 02:58:08,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644588823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:08,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:08,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:08,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861704231] [2022-03-20 02:58:08,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:08,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:08,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:08,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:08,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:08,416 INFO L87 Difference]: Start difference. First operand 1090 states and 1647 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 02:58:11,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:11,256 INFO L93 Difference]: Finished difference Result 2189 states and 3309 transitions. [2022-03-20 02:58:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:11,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 02:58:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:11,259 INFO L225 Difference]: With dead ends: 2189 [2022-03-20 02:58:11,259 INFO L226 Difference]: Without dead ends: 1127 [2022-03-20 02:58:11,260 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 02:58:11,261 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 39 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:11,261 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 511 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:58:11,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2022-03-20 02:58:11,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1090. [2022-03-20 02:58:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1085 states have (on average 1.512442396313364) internal successors, (1641), 1085 states have internal predecessors, (1641), 3 states have call successors, (3), 3 states 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 02:58:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1645 transitions. [2022-03-20 02:58:11,281 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1645 transitions. Word has length 154 [2022-03-20 02:58:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:11,281 INFO L478 AbstractCegarLoop]: Abstraction has 1090 states and 1645 transitions. [2022-03-20 02:58:11,281 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 02:58:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1645 transitions. [2022-03-20 02:58:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 02:58:11,283 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:11,283 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:11,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:58:11,284 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash 34102251, now seen corresponding path program 1 times [2022-03-20 02:58:11,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:11,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990094993] [2022-03-20 02:58:11,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:11,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 02:58:11,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:11,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990094993] [2022-03-20 02:58:11,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990094993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:11,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:11,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:58:11,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235268845] [2022-03-20 02:58:11,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:11,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:58:11,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:58:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:11,430 INFO L87 Difference]: Start difference. First operand 1090 states and 1645 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states 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 02:58:12,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:14,928 INFO L93 Difference]: Finished difference Result 2796 states and 4216 transitions. [2022-03-20 02:58:14,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:58:14,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 02:58:14,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:14,933 INFO L225 Difference]: With dead ends: 2796 [2022-03-20 02:58:14,933 INFO L226 Difference]: Without dead ends: 1734 [2022-03-20 02:58:14,935 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:58:14,936 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 86 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:14,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 759 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 02:58:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2022-03-20 02:58:14,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1691. [2022-03-20 02:58:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1686 states have (on average 1.5118623962040332) internal successors, (2549), 1686 states have internal predecessors, (2549), 3 states have call successors, (3), 3 states 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 02:58:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2553 transitions. [2022-03-20 02:58:14,974 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2553 transitions. Word has length 154 [2022-03-20 02:58:14,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:14,974 INFO L478 AbstractCegarLoop]: Abstraction has 1691 states and 2553 transitions. [2022-03-20 02:58:14,974 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states 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 02:58:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2553 transitions. [2022-03-20 02:58:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-20 02:58:14,976 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:14,976 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:14,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:58:14,976 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:14,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1218729300, now seen corresponding path program 1 times [2022-03-20 02:58:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:14,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449086488] [2022-03-20 02:58:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:15,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 02:58:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:15,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449086488] [2022-03-20 02:58:15,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449086488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:15,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:15,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:15,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505601298] [2022-03-20 02:58:15,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:15,104 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:15,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:15,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:15,105 INFO L87 Difference]: Start difference. First operand 1691 states and 2553 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:17,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:17,272 INFO L93 Difference]: Finished difference Result 3399 states and 5131 transitions. [2022-03-20 02:58:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-20 02:58:17,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:17,278 INFO L225 Difference]: With dead ends: 3399 [2022-03-20 02:58:17,278 INFO L226 Difference]: Without dead ends: 1736 [2022-03-20 02:58:17,281 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 02:58:17,281 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 45 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:17,281 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 505 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 02:58:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2022-03-20 02:58:17,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1691. [2022-03-20 02:58:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1686 states have (on average 1.5100830367734281) internal successors, (2546), 1686 states have internal predecessors, (2546), 3 states have call successors, (3), 3 states 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 02:58:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2550 transitions. [2022-03-20 02:58:17,318 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2550 transitions. Word has length 155 [2022-03-20 02:58:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:17,318 INFO L478 AbstractCegarLoop]: Abstraction has 1691 states and 2550 transitions. [2022-03-20 02:58:17,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2550 transitions. [2022-03-20 02:58:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 02:58:17,320 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:17,321 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:17,321 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:58:17,321 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:17,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:17,321 INFO L85 PathProgramCache]: Analyzing trace with hash -629108114, now seen corresponding path program 1 times [2022-03-20 02:58:17,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:17,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969342996] [2022-03-20 02:58:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:17,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:58:17,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969342996] [2022-03-20 02:58:17,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969342996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:17,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:17,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:17,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191424595] [2022-03-20 02:58:17,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:17,455 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:17,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:17,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:17,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:17,456 INFO L87 Difference]: Start difference. First operand 1691 states and 2550 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:19,184 INFO L93 Difference]: Finished difference Result 3741 states and 5617 transitions. [2022-03-20 02:58:19,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:19,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-20 02:58:19,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:19,194 INFO L225 Difference]: With dead ends: 3741 [2022-03-20 02:58:19,194 INFO L226 Difference]: Without dead ends: 2078 [2022-03-20 02:58:19,196 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 02:58:19,196 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 123 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:19,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 410 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:58:19,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2022-03-20 02:58:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1795. [2022-03-20 02:58:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1790 states have (on average 1.4983240223463687) internal successors, (2682), 1790 states have internal predecessors, (2682), 3 states have call successors, (3), 3 states 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 02:58:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2686 transitions. [2022-03-20 02:58:19,232 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2686 transitions. Word has length 158 [2022-03-20 02:58:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:19,233 INFO L478 AbstractCegarLoop]: Abstraction has 1795 states and 2686 transitions. [2022-03-20 02:58:19,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2686 transitions. [2022-03-20 02:58:19,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-20 02:58:19,235 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:19,235 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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] [2022-03-20 02:58:19,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 02:58:19,236 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:19,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash 270804469, now seen corresponding path program 1 times [2022-03-20 02:58:19,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:19,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494861040] [2022-03-20 02:58:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:58:19,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:19,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494861040] [2022-03-20 02:58:19,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494861040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:19,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:19,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602970406] [2022-03-20 02:58:19,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:19,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:19,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:19,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:19,388 INFO L87 Difference]: Start difference. First operand 1795 states and 2686 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:20,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:22,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:22,180 INFO L93 Difference]: Finished difference Result 3704 states and 5528 transitions. [2022-03-20 02:58:22,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:22,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-20 02:58:22,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:22,185 INFO L225 Difference]: With dead ends: 3704 [2022-03-20 02:58:22,185 INFO L226 Difference]: Without dead ends: 1937 [2022-03-20 02:58:22,187 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 02:58:22,187 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 122 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:22,188 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:58:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2022-03-20 02:58:22,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1795. [2022-03-20 02:58:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1790 states have (on average 1.48268156424581) internal successors, (2654), 1790 states have internal predecessors, (2654), 3 states have call successors, (3), 3 states 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 02:58:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2658 transitions. [2022-03-20 02:58:22,228 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2658 transitions. Word has length 159 [2022-03-20 02:58:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:22,228 INFO L478 AbstractCegarLoop]: Abstraction has 1795 states and 2658 transitions. [2022-03-20 02:58:22,228 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2658 transitions. [2022-03-20 02:58:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-20 02:58:22,230 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:22,230 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:22,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 02:58:22,230 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:22,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1650165617, now seen corresponding path program 1 times [2022-03-20 02:58:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:22,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837740574] [2022-03-20 02:58:22,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:22,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:22,358 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:58:22,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:22,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837740574] [2022-03-20 02:58:22,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837740574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:22,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:22,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:22,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289003826] [2022-03-20 02:58:22,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:22,358 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:22,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:22,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:22,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:22,359 INFO L87 Difference]: Start difference. First operand 1795 states and 2658 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 02:58:24,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:24,892 INFO L93 Difference]: Finished difference Result 3601 states and 5332 transitions. [2022-03-20 02:58:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:24,893 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 161 [2022-03-20 02:58:24,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:24,896 INFO L225 Difference]: With dead ends: 3601 [2022-03-20 02:58:24,896 INFO L226 Difference]: Without dead ends: 1834 [2022-03-20 02:58:24,898 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 02:58:24,899 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 33 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:24,899 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 511 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:58:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2022-03-20 02:58:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1795. [2022-03-20 02:58:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1790 states have (on average 1.4810055865921787) internal successors, (2651), 1790 states have internal predecessors, (2651), 3 states have call successors, (3), 3 states 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 02:58:24,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2655 transitions. [2022-03-20 02:58:24,938 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2655 transitions. Word has length 161 [2022-03-20 02:58:24,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:24,938 INFO L478 AbstractCegarLoop]: Abstraction has 1795 states and 2655 transitions. [2022-03-20 02:58:24,939 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 02:58:24,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2655 transitions. [2022-03-20 02:58:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-20 02:58:24,941 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:24,941 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:24,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 02:58:24,942 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:24,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2112857157, now seen corresponding path program 1 times [2022-03-20 02:58:24,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:24,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882723414] [2022-03-20 02:58:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:58:25,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:25,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882723414] [2022-03-20 02:58:25,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882723414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:25,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:25,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:25,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751012850] [2022-03-20 02:58:25,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:25,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:25,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:25,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:25,083 INFO L87 Difference]: Start difference. First operand 1795 states and 2655 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:27,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:28,323 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 02:58:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:29,033 INFO L93 Difference]: Finished difference Result 3589 states and 5311 transitions. [2022-03-20 02:58:29,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:29,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-03-20 02:58:29,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:29,037 INFO L225 Difference]: With dead ends: 3589 [2022-03-20 02:58:29,037 INFO L226 Difference]: Without dead ends: 1822 [2022-03-20 02:58:29,039 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 02:58:29,039 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 28 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:29,039 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 02:58:29,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-03-20 02:58:29,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1784. [2022-03-20 02:58:29,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1779 states have (on average 1.4822934232715008) internal successors, (2637), 1779 states have internal predecessors, (2637), 3 states have call successors, (3), 3 states 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 02:58:29,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2641 transitions. [2022-03-20 02:58:29,087 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2641 transitions. Word has length 162 [2022-03-20 02:58:29,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:29,088 INFO L478 AbstractCegarLoop]: Abstraction has 1784 states and 2641 transitions. [2022-03-20 02:58:29,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:29,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2641 transitions. [2022-03-20 02:58:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-20 02:58:29,090 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:29,090 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, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:29,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 02:58:29,090 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:29,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:29,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2015325439, now seen corresponding path program 1 times [2022-03-20 02:58:29,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:29,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475755542] [2022-03-20 02:58:29,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:29,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 02:58:29,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:29,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475755542] [2022-03-20 02:58:29,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475755542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:29,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:29,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:29,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148507860] [2022-03-20 02:58:29,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:29,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:29,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:29,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:29,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:29,233 INFO L87 Difference]: Start difference. First operand 1784 states and 2641 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 02:58:31,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:31,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:31,696 INFO L93 Difference]: Finished difference Result 3901 states and 5753 transitions. [2022-03-20 02:58:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:31,696 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 165 [2022-03-20 02:58:31,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:31,699 INFO L225 Difference]: With dead ends: 3901 [2022-03-20 02:58:31,699 INFO L226 Difference]: Without dead ends: 2145 [2022-03-20 02:58:31,702 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 02:58:31,702 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 118 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:31,702 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:58:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2022-03-20 02:58:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1904. [2022-03-20 02:58:31,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1899 states have (on average 1.4744602422327542) internal successors, (2800), 1899 states have internal predecessors, (2800), 3 states have call successors, (3), 3 states 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 02:58:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2804 transitions. [2022-03-20 02:58:31,770 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2804 transitions. Word has length 165 [2022-03-20 02:58:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:31,770 INFO L478 AbstractCegarLoop]: Abstraction has 1904 states and 2804 transitions. [2022-03-20 02:58:31,770 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 02:58:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2804 transitions. [2022-03-20 02:58:31,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-20 02:58:31,773 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:31,773 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, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:31,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 02:58:31,773 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:31,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:31,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1789861636, now seen corresponding path program 1 times [2022-03-20 02:58:31,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:31,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048648475] [2022-03-20 02:58:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:31,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:31,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:31,891 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-20 02:58:31,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:31,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048648475] [2022-03-20 02:58:31,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048648475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:31,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:31,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:31,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019227126] [2022-03-20 02:58:31,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:31,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:31,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:31,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:31,892 INFO L87 Difference]: Start difference. First operand 1904 states and 2804 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:33,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:35,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:35,100 INFO L93 Difference]: Finished difference Result 3854 states and 5666 transitions. [2022-03-20 02:58:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-20 02:58:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:35,104 INFO L225 Difference]: With dead ends: 3854 [2022-03-20 02:58:35,104 INFO L226 Difference]: Without dead ends: 1978 [2022-03-20 02:58:35,106 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 02:58:35,107 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 37 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:35,107 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 546 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:58:35,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-03-20 02:58:35,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1904. [2022-03-20 02:58:35,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1899 states have (on average 1.4723538704581358) internal successors, (2796), 1899 states have internal predecessors, (2796), 3 states have call successors, (3), 3 states 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 02:58:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2800 transitions. [2022-03-20 02:58:35,159 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2800 transitions. Word has length 166 [2022-03-20 02:58:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:35,159 INFO L478 AbstractCegarLoop]: Abstraction has 1904 states and 2800 transitions. [2022-03-20 02:58:35,159 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2800 transitions. [2022-03-20 02:58:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 02:58:35,161 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:35,161 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:35,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 02:58:35,161 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:35,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:35,162 INFO L85 PathProgramCache]: Analyzing trace with hash -565290865, now seen corresponding path program 1 times [2022-03-20 02:58:35,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:35,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635118732] [2022-03-20 02:58:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-20 02:58:35,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:35,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635118732] [2022-03-20 02:58:35,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635118732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:35,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:35,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:35,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598890409] [2022-03-20 02:58:35,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:35,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:35,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:35,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:35,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:35,284 INFO L87 Difference]: Start difference. First operand 1904 states and 2800 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states 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 02:58:36,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:38,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:38,707 INFO L93 Difference]: Finished difference Result 3902 states and 5732 transitions. [2022-03-20 02:58:38,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:38,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-20 02:58:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:38,710 INFO L225 Difference]: With dead ends: 3902 [2022-03-20 02:58:38,710 INFO L226 Difference]: Without dead ends: 2026 [2022-03-20 02:58:38,712 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 02:58:38,712 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 128 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:38,713 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 358 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:58:38,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2022-03-20 02:58:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1904. [2022-03-20 02:58:38,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1899 states have (on average 1.4518167456556081) internal successors, (2757), 1899 states have internal predecessors, (2757), 3 states have call successors, (3), 3 states 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 02:58:38,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2761 transitions. [2022-03-20 02:58:38,780 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2761 transitions. Word has length 168 [2022-03-20 02:58:38,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:38,780 INFO L478 AbstractCegarLoop]: Abstraction has 1904 states and 2761 transitions. [2022-03-20 02:58:38,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states 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 02:58:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2761 transitions. [2022-03-20 02:58:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 02:58:38,782 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:38,782 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:38,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 02:58:38,783 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:38,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash 397544566, now seen corresponding path program 1 times [2022-03-20 02:58:38,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:38,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708965029] [2022-03-20 02:58:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:38,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:38,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 02:58:38,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:38,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708965029] [2022-03-20 02:58:38,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708965029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:38,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:38,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:38,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398747883] [2022-03-20 02:58:38,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:38,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:38,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:38,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:38,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:38,905 INFO L87 Difference]: Start difference. First operand 1904 states and 2761 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:41,391 INFO L93 Difference]: Finished difference Result 3812 states and 5533 transitions. [2022-03-20 02:58:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-20 02:58:41,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:41,394 INFO L225 Difference]: With dead ends: 3812 [2022-03-20 02:58:41,394 INFO L226 Difference]: Without dead ends: 1936 [2022-03-20 02:58:41,396 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 02:58:41,396 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 72 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:41,397 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 600 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:58:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2022-03-20 02:58:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1904. [2022-03-20 02:58:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1899 states have (on average 1.4512901527119537) internal successors, (2756), 1899 states have internal predecessors, (2756), 3 states have call successors, (3), 3 states 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 02:58:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2760 transitions. [2022-03-20 02:58:41,445 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2760 transitions. Word has length 171 [2022-03-20 02:58:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:41,445 INFO L478 AbstractCegarLoop]: Abstraction has 1904 states and 2760 transitions. [2022-03-20 02:58:41,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2760 transitions. [2022-03-20 02:58:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 02:58:41,448 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:41,448 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:41,448 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 02:58:41,449 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1249980488, now seen corresponding path program 1 times [2022-03-20 02:58:41,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:41,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681214222] [2022-03-20 02:58:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:41,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:41,566 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 02:58:41,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:41,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681214222] [2022-03-20 02:58:41,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681214222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:41,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:41,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:58:41,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014927693] [2022-03-20 02:58:41,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:41,568 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:58:41,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:41,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:58:41,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:58:41,569 INFO L87 Difference]: Start difference. First operand 1904 states and 2760 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:43,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:44,429 INFO L93 Difference]: Finished difference Result 4697 states and 6832 transitions. [2022-03-20 02:58:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:58:44,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-20 02:58:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:44,433 INFO L225 Difference]: With dead ends: 4697 [2022-03-20 02:58:44,433 INFO L226 Difference]: Without dead ends: 2821 [2022-03-20 02:58:44,436 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 02:58:44,436 INFO L913 BasicCegarLoop]: 373 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:44,437 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 567 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:58:44,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2022-03-20 02:58:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2821. [2022-03-20 02:58:44,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2816 states have (on average 1.4517045454545454) internal successors, (4088), 2816 states have internal predecessors, (4088), 3 states have call successors, (3), 3 states 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 02:58:44,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4092 transitions. [2022-03-20 02:58:44,509 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4092 transitions. Word has length 171 [2022-03-20 02:58:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:44,509 INFO L478 AbstractCegarLoop]: Abstraction has 2821 states and 4092 transitions. [2022-03-20 02:58:44,509 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4092 transitions. [2022-03-20 02:58:44,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 02:58:44,513 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:44,513 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:44,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 02:58:44,513 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:44,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:44,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1390400330, now seen corresponding path program 1 times [2022-03-20 02:58:44,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:44,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972315460] [2022-03-20 02:58:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:44,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:44,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:58:44,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:44,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972315460] [2022-03-20 02:58:44,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972315460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:44,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:44,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:58:44,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389816497] [2022-03-20 02:58:44,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:44,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:58:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:58:44,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:58:44,636 INFO L87 Difference]: Start difference. First operand 2821 states and 4092 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:46,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:46,485 INFO L93 Difference]: Finished difference Result 6493 states and 9438 transitions. [2022-03-20 02:58:46,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:58:46,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-20 02:58:46,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:46,491 INFO L225 Difference]: With dead ends: 6493 [2022-03-20 02:58:46,491 INFO L226 Difference]: Without dead ends: 3700 [2022-03-20 02:58:46,495 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 02:58:46,495 INFO L913 BasicCegarLoop]: 368 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:46,496 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 562 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:58:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2022-03-20 02:58:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3694. [2022-03-20 02:58:46,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3689 states have (on average 1.4526972079154243) internal successors, (5359), 3689 states have internal predecessors, (5359), 3 states have call successors, (3), 3 states 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 02:58:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 5363 transitions. [2022-03-20 02:58:46,611 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 5363 transitions. Word has length 172 [2022-03-20 02:58:46,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:46,611 INFO L478 AbstractCegarLoop]: Abstraction has 3694 states and 5363 transitions. [2022-03-20 02:58:46,611 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:46,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 5363 transitions. [2022-03-20 02:58:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-20 02:58:46,614 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:46,614 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:46,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 02:58:46,614 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:46,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:46,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2077935154, now seen corresponding path program 1 times [2022-03-20 02:58:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:46,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328528248] [2022-03-20 02:58:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:46,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:46,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-03-20 02:58:46,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:46,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328528248] [2022-03-20 02:58:46,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328528248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:46,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:46,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:46,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905583412] [2022-03-20 02:58:46,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:46,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:46,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:46,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:46,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:46,739 INFO L87 Difference]: Start difference. First operand 3694 states and 5363 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:48,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:50,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:51,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:51,564 INFO L93 Difference]: Finished difference Result 7754 states and 11228 transitions. [2022-03-20 02:58:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:51,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-03-20 02:58:51,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:51,572 INFO L225 Difference]: With dead ends: 7754 [2022-03-20 02:58:51,572 INFO L226 Difference]: Without dead ends: 4088 [2022-03-20 02:58:51,578 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 02:58:51,578 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 55 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:51,578 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 559 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:58:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-03-20 02:58:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3806. [2022-03-20 02:58:51,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3801 states have (on average 1.4561957379636938) internal successors, (5535), 3801 states have internal predecessors, (5535), 3 states have call successors, (3), 3 states 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 02:58:51,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5539 transitions. [2022-03-20 02:58:51,685 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5539 transitions. Word has length 180 [2022-03-20 02:58:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:51,686 INFO L478 AbstractCegarLoop]: Abstraction has 3806 states and 5539 transitions. [2022-03-20 02:58:51,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:51,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5539 transitions. [2022-03-20 02:58:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-20 02:58:51,689 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:51,689 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:51,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 02:58:51,690 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:51,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:51,690 INFO L85 PathProgramCache]: Analyzing trace with hash -902320365, now seen corresponding path program 1 times [2022-03-20 02:58:51,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:51,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734838749] [2022-03-20 02:58:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:51,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:51,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-20 02:58:51,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:51,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734838749] [2022-03-20 02:58:51,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734838749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:51,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:51,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:51,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725966120] [2022-03-20 02:58:51,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:51,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:51,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:51,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:51,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:51,889 INFO L87 Difference]: Start difference. First operand 3806 states and 5539 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:53,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:55,402 INFO L93 Difference]: Finished difference Result 7930 states and 11488 transitions. [2022-03-20 02:58:55,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:55,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-03-20 02:58:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:55,406 INFO L225 Difference]: With dead ends: 7930 [2022-03-20 02:58:55,406 INFO L226 Difference]: Without dead ends: 4152 [2022-03-20 02:58:55,410 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 02:58:55,410 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 81 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:55,410 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 587 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:58:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2022-03-20 02:58:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3806. [2022-03-20 02:58:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3801 states have (on average 1.454091028676664) internal successors, (5527), 3801 states have internal predecessors, (5527), 3 states have call successors, (3), 3 states 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 02:58:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5531 transitions. [2022-03-20 02:58:55,531 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5531 transitions. Word has length 180 [2022-03-20 02:58:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:55,531 INFO L478 AbstractCegarLoop]: Abstraction has 3806 states and 5531 transitions. [2022-03-20 02:58:55,531 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:55,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5531 transitions. [2022-03-20 02:58:55,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-20 02:58:55,534 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:55,535 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:55,535 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 02:58:55,535 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:55,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:55,536 INFO L85 PathProgramCache]: Analyzing trace with hash -254144835, now seen corresponding path program 1 times [2022-03-20 02:58:55,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:55,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213444341] [2022-03-20 02:58:55,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:55,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:55,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-20 02:58:55,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:55,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213444341] [2022-03-20 02:58:55,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213444341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:55,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:55,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:55,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648287431] [2022-03-20 02:58:55,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:55,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:55,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:55,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:55,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:55,670 INFO L87 Difference]: Start difference. First operand 3806 states and 5531 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 02:58:56,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:59,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:59,096 INFO L93 Difference]: Finished difference Result 7714 states and 11196 transitions. [2022-03-20 02:58:59,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:59,096 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 182 [2022-03-20 02:58:59,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:59,100 INFO L225 Difference]: With dead ends: 7714 [2022-03-20 02:58:59,100 INFO L226 Difference]: Without dead ends: 3936 [2022-03-20 02:58:59,103 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 02:58:59,104 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 37 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:59,104 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 552 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 02:58:59,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-03-20 02:58:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3806. [2022-03-20 02:58:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3801 states have (on average 1.4519863193896343) internal successors, (5519), 3801 states have internal predecessors, (5519), 3 states have call successors, (3), 3 states 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 02:58:59,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5523 transitions. [2022-03-20 02:58:59,224 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5523 transitions. Word has length 182 [2022-03-20 02:58:59,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:59,224 INFO L478 AbstractCegarLoop]: Abstraction has 3806 states and 5523 transitions. [2022-03-20 02:58:59,224 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 02:58:59,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5523 transitions. [2022-03-20 02:58:59,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-03-20 02:58:59,226 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:59,226 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:59,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 02:58:59,227 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:59,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:59,227 INFO L85 PathProgramCache]: Analyzing trace with hash 258923257, now seen corresponding path program 1 times [2022-03-20 02:58:59,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:59,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098346135] [2022-03-20 02:58:59,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:59,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:59,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 02:58:59,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:59,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098346135] [2022-03-20 02:58:59,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098346135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:59,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:59,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:59,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791176126] [2022-03-20 02:58:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:59,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:59,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:59,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:59,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:59,345 INFO L87 Difference]: Start difference. First operand 3806 states and 5523 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:00,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:02,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:02,408 INFO L93 Difference]: Finished difference Result 7666 states and 11119 transitions. [2022-03-20 02:59:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:02,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-03-20 02:59:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:02,411 INFO L225 Difference]: With dead ends: 7666 [2022-03-20 02:59:02,411 INFO L226 Difference]: Without dead ends: 3888 [2022-03-20 02:59:02,414 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 02:59:02,415 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 56 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:02,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 598 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:59:02,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2022-03-20 02:59:02,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3806. [2022-03-20 02:59:02,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3801 states have (on average 1.4511970534069982) internal successors, (5516), 3801 states have internal predecessors, (5516), 3 states have call successors, (3), 3 states 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 02:59:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5520 transitions. [2022-03-20 02:59:02,482 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5520 transitions. Word has length 185 [2022-03-20 02:59:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:02,482 INFO L478 AbstractCegarLoop]: Abstraction has 3806 states and 5520 transitions. [2022-03-20 02:59:02,482 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5520 transitions. [2022-03-20 02:59:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-03-20 02:59:02,485 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:02,485 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:02,485 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 02:59:02,486 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:02,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:02,486 INFO L85 PathProgramCache]: Analyzing trace with hash -525701386, now seen corresponding path program 1 times [2022-03-20 02:59:02,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:02,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056570291] [2022-03-20 02:59:02,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:02,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:02,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-20 02:59:02,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:02,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056570291] [2022-03-20 02:59:02,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056570291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:02,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:02,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:02,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418588566] [2022-03-20 02:59:02,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:02,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:02,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:02,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:02,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:02,629 INFO L87 Difference]: Start difference. First operand 3806 states and 5520 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 02:59:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:05,252 INFO L93 Difference]: Finished difference Result 7850 states and 11342 transitions. [2022-03-20 02:59:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:05,252 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 190 [2022-03-20 02:59:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:05,255 INFO L225 Difference]: With dead ends: 7850 [2022-03-20 02:59:05,255 INFO L226 Difference]: Without dead ends: 4072 [2022-03-20 02:59:05,258 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 02:59:05,258 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:05,258 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 561 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:59:05,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4072 states. [2022-03-20 02:59:05,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4072 to 3846. [2022-03-20 02:59:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3841 states have (on average 1.4506638896120803) internal successors, (5572), 3841 states have internal predecessors, (5572), 3 states have call successors, (3), 3 states 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 02:59:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 5576 transitions. [2022-03-20 02:59:05,329 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 5576 transitions. Word has length 190 [2022-03-20 02:59:05,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:05,329 INFO L478 AbstractCegarLoop]: Abstraction has 3846 states and 5576 transitions. [2022-03-20 02:59:05,329 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 02:59:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 5576 transitions. [2022-03-20 02:59:05,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-20 02:59:05,332 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:05,332 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:05,332 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 02:59:05,332 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:05,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:05,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2072565345, now seen corresponding path program 1 times [2022-03-20 02:59:05,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:05,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612055438] [2022-03-20 02:59:05,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:05,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-20 02:59:05,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:05,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612055438] [2022-03-20 02:59:05,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612055438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:05,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:05,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:05,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619011375] [2022-03-20 02:59:05,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:05,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:05,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:05,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:05,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:05,472 INFO L87 Difference]: Start difference. First operand 3846 states and 5576 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:08,507 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 02:59:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:09,396 INFO L93 Difference]: Finished difference Result 7902 states and 11440 transitions. [2022-03-20 02:59:09,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:09,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-03-20 02:59:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:09,400 INFO L225 Difference]: With dead ends: 7902 [2022-03-20 02:59:09,400 INFO L226 Difference]: Without dead ends: 4084 [2022-03-20 02:59:09,403 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 02:59:09,404 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 103 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:09,404 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 342 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 02:59:09,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2022-03-20 02:59:09,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 3806. [2022-03-20 02:59:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3801 states have (on average 1.4440936595632727) internal successors, (5489), 3801 states have internal predecessors, (5489), 3 states have call successors, (3), 3 states 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 02:59:09,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5493 transitions. [2022-03-20 02:59:09,479 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5493 transitions. Word has length 195 [2022-03-20 02:59:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:09,480 INFO L478 AbstractCegarLoop]: Abstraction has 3806 states and 5493 transitions. [2022-03-20 02:59:09,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:09,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5493 transitions. [2022-03-20 02:59:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 02:59:09,492 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:09,493 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:09,493 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 02:59:09,493 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:09,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1828204807, now seen corresponding path program 1 times [2022-03-20 02:59:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:09,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134826100] [2022-03-20 02:59:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:09,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-03-20 02:59:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:09,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134826100] [2022-03-20 02:59:09,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134826100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:09,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:09,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:09,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250700834] [2022-03-20 02:59:09,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:09,628 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:09,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:09,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:09,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:09,628 INFO L87 Difference]: Start difference. First operand 3806 states and 5493 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:11,203 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 02:59:12,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:12,447 INFO L93 Difference]: Finished difference Result 7721 states and 11134 transitions. [2022-03-20 02:59:12,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:12,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-20 02:59:12,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:12,452 INFO L225 Difference]: With dead ends: 7721 [2022-03-20 02:59:12,452 INFO L226 Difference]: Without dead ends: 3943 [2022-03-20 02:59:12,456 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 02:59:12,456 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 121 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:12,456 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 348 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:59:12,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2022-03-20 02:59:12,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3709. [2022-03-20 02:59:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3704 states have (on average 1.426025917926566) internal successors, (5282), 3704 states have internal predecessors, (5282), 3 states have call successors, (3), 3 states 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 02:59:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5286 transitions. [2022-03-20 02:59:12,545 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5286 transitions. Word has length 196 [2022-03-20 02:59:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:12,546 INFO L478 AbstractCegarLoop]: Abstraction has 3709 states and 5286 transitions. [2022-03-20 02:59:12,546 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5286 transitions. [2022-03-20 02:59:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 02:59:12,548 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:12,548 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] [2022-03-20 02:59:12,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 02:59:12,548 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash 713847772, now seen corresponding path program 1 times [2022-03-20 02:59:12,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:12,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755678104] [2022-03-20 02:59:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:12,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 02:59:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:13,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755678104] [2022-03-20 02:59:13,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755678104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:13,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:13,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:59:13,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882707146] [2022-03-20 02:59:13,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:13,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:59:13,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:13,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:59:13,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:59:13,149 INFO L87 Difference]: Start difference. First operand 3709 states and 5286 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 02:59:16,325 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 02:59:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:18,079 INFO L93 Difference]: Finished difference Result 7411 states and 10564 transitions. [2022-03-20 02:59:18,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:59:18,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 196 [2022-03-20 02:59:18,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:18,086 INFO L225 Difference]: With dead ends: 7411 [2022-03-20 02:59:18,086 INFO L226 Difference]: Without dead ends: 3709 [2022-03-20 02:59:18,091 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 02:59:18,091 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 7 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:18,092 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 812 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 02:59:18,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-03-20 02:59:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-03-20 02:59:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3704 states have (on average 1.425755939524838) internal successors, (5281), 3704 states have internal predecessors, (5281), 3 states have call successors, (3), 3 states 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 02:59:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5285 transitions. [2022-03-20 02:59:18,236 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5285 transitions. Word has length 196 [2022-03-20 02:59:18,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:18,237 INFO L478 AbstractCegarLoop]: Abstraction has 3709 states and 5285 transitions. [2022-03-20 02:59:18,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 02:59:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5285 transitions. [2022-03-20 02:59:18,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 02:59:18,263 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:18,263 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] [2022-03-20 02:59:18,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 02:59:18,264 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:18,264 INFO L85 PathProgramCache]: Analyzing trace with hash 240612122, now seen corresponding path program 1 times [2022-03-20 02:59:18,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:18,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243477168] [2022-03-20 02:59:18,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:18,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-20 02:59:19,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:19,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243477168] [2022-03-20 02:59:19,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243477168] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:59:19,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564880459] [2022-03-20 02:59:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:19,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:59:19,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:59:19,644 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 02:59:19,647 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 02:59:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:20,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 180 conjunts are in the unsatisfiable core [2022-03-20 02:59:20,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:59:21,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,930 INFO L244 Elim1Store]: Index analysis took 104 ms