/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.09.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:52:41,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:52:41,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:52:41,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:52:41,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:52:41,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:52:41,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:52:41,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:52:41,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:52:41,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:52:41,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:52:41,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:52:41,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:52:41,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:52:41,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:52:41,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:52:41,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:52:41,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:52:41,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:52:41,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:52:41,275 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:52:41,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:52:41,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:52:41,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:52:41,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:52:41,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:52:41,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:52:41,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:52:41,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:52:41,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:52:41,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 02:52:41,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 02:52:41,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 02:52:41,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 02:52:41,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 02:52:41,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 02:52:41,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 02:52:41,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 02:52:41,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 02:52:41,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:52:41,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:52:41,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:52:41,295 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 02:52:41,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:52:41,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:52:41,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:52:41,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:52:41,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:52:41,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:52:41,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:52:41,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:52:41,328 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:52:41,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:52:41,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:52:41,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:52:41,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:52:41,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:52:41,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:52:41,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:52:41,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:52:41,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:52:41,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:52:41,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:52:41,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:52:41,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:52:41,332 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:52:41,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:52:41,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:52:41,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:52:41,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:52:41,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:52:41,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:52:41,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:52:41,536 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:52:41,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c [2022-03-20 02:52:41,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af84cd941/d4112800e848449e8dfd39bb278e7acd/FLAG3892ad2ce [2022-03-20 02:52:42,048 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:52:42,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c [2022-03-20 02:52:42,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af84cd941/d4112800e848449e8dfd39bb278e7acd/FLAG3892ad2ce [2022-03-20 02:52:42,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af84cd941/d4112800e848449e8dfd39bb278e7acd [2022-03-20 02:52:42,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:52:42,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:52:42,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:52:42,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:52:42,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:52:42,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10feb1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42, skipping insertion in model container [2022-03-20 02:52:42,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:52:42,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:52:42,430 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.09.i.cil-1.c[74369,74382] [2022-03-20 02:52:42,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:52:42,449 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:52:42,532 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.09.i.cil-1.c[74369,74382] [2022-03-20 02:52:42,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:52:42,545 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:52:42,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42 WrapperNode [2022-03-20 02:52:42,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:52:42,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:52:42,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:52:42,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:52:42,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:52:42,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:52:42,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:52:42,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:52:42,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (1/1) ... [2022-03-20 02:52:42,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:52:42,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:52:42,688 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 02:52:42,708 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 02:52:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:52:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:52:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:52:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:52:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:52:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:52:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:52:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:52:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:52:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:52:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:52:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:52:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:52:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:52:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:52:42,872 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:52:42,873 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:52:43,522 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:52:43,958 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:52:43,958 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:52:43,969 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:52:43,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:52:43,978 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:52:43,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:52:43 BoogieIcfgContainer [2022-03-20 02:52:43,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:52:43,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:52:43,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:52:43,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:52:43,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:52:42" (1/3) ... [2022-03-20 02:52:43,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a03faeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:52:43, skipping insertion in model container [2022-03-20 02:52:43,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:52:42" (2/3) ... [2022-03-20 02:52:43,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a03faeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:52:43, skipping insertion in model container [2022-03-20 02:52:43,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:52:43" (3/3) ... [2022-03-20 02:52:43,987 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.09.i.cil-1.c [2022-03-20 02:52:43,991 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:52:43,991 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:52:44,034 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:52:44,040 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 02:52:44,040 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:52:44,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 02:52:44,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 02:52:44,060 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:44,061 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] [2022-03-20 02:52:44,061 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:44,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1538020646, now seen corresponding path program 1 times [2022-03-20 02:52:44,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:44,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490784655] [2022-03-20 02:52:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:44,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:44,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:52:44,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:44,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490784655] [2022-03-20 02:52:44,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490784655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:44,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:44,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:44,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487664389] [2022-03-20 02:52:44,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:44,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:44,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:44,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:44,559 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:46,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:46,432 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-03-20 02:52:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:46,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 02:52:46,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:46,441 INFO L225 Difference]: With dead ends: 430 [2022-03-20 02:52:46,441 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 02:52:46,444 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 02:52:46,446 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:46,447 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:52:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 02:52:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-03-20 02:52:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:46,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-20 02:52:46,528 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-20 02:52:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:46,528 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-20 02:52:46,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-20 02:52:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-20 02:52:46,531 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:46,531 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] [2022-03-20 02:52:46,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:52:46,531 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:46,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1015183371, now seen corresponding path program 1 times [2022-03-20 02:52:46,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:46,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247519709] [2022-03-20 02:52:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:46,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:46,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:46,693 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 02:52:46,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:46,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247519709] [2022-03-20 02:52:46,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247519709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:46,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:46,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:46,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631715779] [2022-03-20 02:52:46,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:46,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:46,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:46,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:46,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:46,696 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:48,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:48,362 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-03-20 02:52:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:48,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-20 02:52:48,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:48,365 INFO L225 Difference]: With dead ends: 444 [2022-03-20 02:52:48,365 INFO L226 Difference]: Without dead ends: 289 [2022-03-20 02:52:48,365 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 02:52:48,366 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:48,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:52:48,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-20 02:52:48,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-03-20 02:52:48,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-20 02:52:48,378 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-20 02:52:48,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:48,378 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-20 02:52:48,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-20 02:52:48,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 02:52:48,380 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:48,380 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 02:52:48,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:52:48,380 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:48,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:48,380 INFO L85 PathProgramCache]: Analyzing trace with hash 887448580, now seen corresponding path program 1 times [2022-03-20 02:52:48,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:48,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093722634] [2022-03-20 02:52:48,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:48,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:48,515 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 02:52:48,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:48,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093722634] [2022-03-20 02:52:48,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093722634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:48,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:48,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:48,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653782734] [2022-03-20 02:52:48,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:48,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:48,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:48,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:48,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:48,518 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. 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 02:52:51,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:51,045 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-03-20 02:52:51,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:51,045 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 02:52:51,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:51,047 INFO L225 Difference]: With dead ends: 503 [2022-03-20 02:52:51,047 INFO L226 Difference]: Without dead ends: 319 [2022-03-20 02:52:51,048 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 02:52:51,049 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 123 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:51,049 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:52:51,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-03-20 02:52:51,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-03-20 02:52:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-20 02:52:51,065 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-03-20 02:52:51,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:51,066 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-20 02:52:51,066 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 02:52:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-20 02:52:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 02:52:51,074 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:51,074 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 02:52:51,074 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:52:51,075 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1734094884, now seen corresponding path program 1 times [2022-03-20 02:52:51,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:51,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285133219] [2022-03-20 02:52:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:51,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:51,211 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 02:52:51,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:51,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285133219] [2022-03-20 02:52:51,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285133219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:51,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:51,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:51,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556923240] [2022-03-20 02:52:51,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:51,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:51,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:51,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:51,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:51,213 INFO L87 Difference]: Start difference. First operand 239 states and 388 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 02:52:53,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:53,311 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-03-20 02:52:53,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:53,311 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 02:52:53,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:53,312 INFO L225 Difference]: With dead ends: 553 [2022-03-20 02:52:53,313 INFO L226 Difference]: Without dead ends: 329 [2022-03-20 02:52:53,314 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 02:52:53,314 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 122 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:53,315 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 02:52:53,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-20 02:52:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-03-20 02:52:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:53,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-20 02:52:53,323 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-03-20 02:52:53,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:53,324 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-20 02:52:53,324 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 02:52:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-20 02:52:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 02:52:53,325 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:53,326 INFO L499 BasicCegarLoop]: trace histogram [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 02:52:53,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:52:53,326 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1073389890, now seen corresponding path program 1 times [2022-03-20 02:52:53,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:53,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134610209] [2022-03-20 02:52:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:53,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-20 02:52:53,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:53,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134610209] [2022-03-20 02:52:53,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134610209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:53,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:53,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:53,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214907379] [2022-03-20 02:52:53,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:53,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:53,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:53,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:53,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:53,452 INFO L87 Difference]: Start difference. First operand 250 states and 409 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 02:52:56,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:56,005 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-20 02:52:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:56,006 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 70 [2022-03-20 02:52:56,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:56,007 INFO L225 Difference]: With dead ends: 513 [2022-03-20 02:52:56,007 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 02:52:56,008 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 02:52:56,008 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:56,009 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:52:56,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 02:52:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-20 02:52:56,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-20 02:52:56,016 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-20 02:52:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:56,016 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-20 02:52:56,016 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 02:52:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-20 02:52:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 02:52:56,017 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:56,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:56,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:52:56,018 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:56,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1770564040, now seen corresponding path program 1 times [2022-03-20 02:52:56,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:56,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543725918] [2022-03-20 02:52:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:56,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:52:56,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:56,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543725918] [2022-03-20 02:52:56,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543725918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:56,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:56,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:56,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760223382] [2022-03-20 02:52:56,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:56,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:56,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:56,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:56,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:56,158 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:57,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:57,901 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-20 02:52:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:57,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 02:52:57,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:57,903 INFO L225 Difference]: With dead ends: 513 [2022-03-20 02:52:57,903 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 02:52:57,903 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 02:52:57,904 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:57,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:52:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 02:52:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-20 02:52:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-20 02:52:57,910 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-20 02:52:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:57,911 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-20 02:52:57,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-20 02:52:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:52:57,912 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:57,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:57,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:52:57,912 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:57,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:57,913 INFO L85 PathProgramCache]: Analyzing trace with hash 22704056, now seen corresponding path program 1 times [2022-03-20 02:52:57,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:57,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282967382] [2022-03-20 02:52:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:57,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:52:58,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:58,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282967382] [2022-03-20 02:52:58,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282967382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:58,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:58,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:58,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535523624] [2022-03-20 02:52:58,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:58,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:58,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:58,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:58,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:58,015 INFO L87 Difference]: Start difference. First operand 261 states and 427 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 02:52:59,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:59,835 INFO L93 Difference]: Finished difference Result 574 states and 927 transitions. [2022-03-20 02:52:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:59,836 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 84 [2022-03-20 02:52:59,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:59,838 INFO L225 Difference]: With dead ends: 574 [2022-03-20 02:52:59,838 INFO L226 Difference]: Without dead ends: 339 [2022-03-20 02:52:59,838 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 02:52:59,839 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:59,839 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:52:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-20 02:52:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-20 02:52:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-20 02:52:59,845 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-20 02:52:59,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:59,845 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-20 02:52:59,846 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 02:52:59,846 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-20 02:52:59,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:52:59,846 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:59,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:59,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:52:59,847 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:59,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1270495820, now seen corresponding path program 1 times [2022-03-20 02:52:59,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:59,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61273856] [2022-03-20 02:52:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:59,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:59,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:52:59,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:59,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61273856] [2022-03-20 02:52:59,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61273856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:59,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:59,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:59,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783691094] [2022-03-20 02:52:59,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:59,944 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:59,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:59,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:59,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:59,945 INFO L87 Difference]: Start difference. First operand 261 states and 423 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 02:53:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:01,393 INFO L93 Difference]: Finished difference Result 574 states and 920 transitions. [2022-03-20 02:53:01,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:01,393 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 84 [2022-03-20 02:53:01,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:01,395 INFO L225 Difference]: With dead ends: 574 [2022-03-20 02:53:01,395 INFO L226 Difference]: Without dead ends: 339 [2022-03-20 02:53:01,395 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 02:53:01,396 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 148 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:01,396 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 02:53:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-20 02:53:01,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-20 02:53:01,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.62109375) internal successors, (415), 256 states have internal predecessors, (415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:01,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 419 transitions. [2022-03-20 02:53:01,402 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 419 transitions. Word has length 84 [2022-03-20 02:53:01,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:01,402 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 419 transitions. [2022-03-20 02:53:01,402 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 02:53:01,402 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 419 transitions. [2022-03-20 02:53:01,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:53:01,403 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:01,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:01,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:53:01,403 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:01,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:01,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1693483075, now seen corresponding path program 1 times [2022-03-20 02:53:01,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:01,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301073297] [2022-03-20 02:53:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:01,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:01,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:01,538 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:01,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:01,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301073297] [2022-03-20 02:53:01,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301073297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:01,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:01,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:01,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733246] [2022-03-20 02:53:01,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:01,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:01,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:01,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:01,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:01,540 INFO L87 Difference]: Start difference. First operand 261 states and 419 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 02:53:03,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:04,500 INFO L93 Difference]: Finished difference Result 510 states and 821 transitions. [2022-03-20 02:53:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:04,500 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 84 [2022-03-20 02:53:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:04,501 INFO L225 Difference]: With dead ends: 510 [2022-03-20 02:53:04,501 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 02:53:04,502 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 02:53:04,502 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:04,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:53:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 02:53:04,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 261. [2022-03-20 02:53:04,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-20 02:53:04,508 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-20 02:53:04,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:04,508 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-20 02:53:04,508 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 02:53:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-20 02:53:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:53:04,509 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:04,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:04,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:53:04,509 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1703458820, now seen corresponding path program 1 times [2022-03-20 02:53:04,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:04,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869336113] [2022-03-20 02:53:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:04,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:04,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:04,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869336113] [2022-03-20 02:53:04,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869336113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:04,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:04,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:04,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211133586] [2022-03-20 02:53:04,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:04,625 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:04,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:04,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:04,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:04,626 INFO L87 Difference]: Start difference. First operand 261 states and 418 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 02:53:05,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:07,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:07,024 INFO L93 Difference]: Finished difference Result 573 states and 911 transitions. [2022-03-20 02:53:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:07,025 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 84 [2022-03-20 02:53:07,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:07,040 INFO L225 Difference]: With dead ends: 573 [2022-03-20 02:53:07,040 INFO L226 Difference]: Without dead ends: 338 [2022-03-20 02:53:07,041 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 02:53:07,041 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:07,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:53:07,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-20 02:53:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-20 02:53:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-20 02:53:07,047 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-20 02:53:07,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:07,047 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-20 02:53:07,047 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 02:53:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-20 02:53:07,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 02:53:07,048 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:07,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:07,048 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:53:07,048 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:07,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:07,049 INFO L85 PathProgramCache]: Analyzing trace with hash -336623119, now seen corresponding path program 1 times [2022-03-20 02:53:07,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:07,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593320135] [2022-03-20 02:53:07,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:07,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:07,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:07,163 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:07,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593320135] [2022-03-20 02:53:07,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593320135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:07,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:07,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:07,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327410967] [2022-03-20 02:53:07,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:07,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:07,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:07,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:07,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:07,165 INFO L87 Difference]: Start difference. First operand 261 states and 414 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 02:53:10,121 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 02:53:10,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:10,732 INFO L93 Difference]: Finished difference Result 509 states and 812 transitions. [2022-03-20 02:53:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:10,733 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 85 [2022-03-20 02:53:10,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:10,734 INFO L225 Difference]: With dead ends: 509 [2022-03-20 02:53:10,734 INFO L226 Difference]: Without dead ends: 274 [2022-03-20 02:53:10,734 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:10,735 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:10,735 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 02:53:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-20 02:53:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 261. [2022-03-20 02:53:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.59765625) internal successors, (409), 256 states have internal predecessors, (409), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 413 transitions. [2022-03-20 02:53:10,742 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 413 transitions. Word has length 85 [2022-03-20 02:53:10,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:10,743 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 413 transitions. [2022-03-20 02:53:10,743 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 02:53:10,743 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 413 transitions. [2022-03-20 02:53:10,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 02:53:10,743 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:10,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:10,744 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:53:10,744 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1658086991, now seen corresponding path program 1 times [2022-03-20 02:53:10,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:10,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222466943] [2022-03-20 02:53:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:10,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:10,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222466943] [2022-03-20 02:53:10,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222466943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:10,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:10,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749777750] [2022-03-20 02:53:10,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:10,829 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:10,830 INFO L87 Difference]: Start difference. First operand 261 states and 413 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 02:53:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:13,252 INFO L93 Difference]: Finished difference Result 573 states and 903 transitions. [2022-03-20 02:53:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:13,252 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 86 [2022-03-20 02:53:13,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:13,253 INFO L225 Difference]: With dead ends: 573 [2022-03-20 02:53:13,254 INFO L226 Difference]: Without dead ends: 338 [2022-03-20 02:53:13,254 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 02:53:13,255 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 144 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:13,255 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:53:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-20 02:53:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-20 02:53:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 409 transitions. [2022-03-20 02:53:13,261 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 409 transitions. Word has length 86 [2022-03-20 02:53:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:13,261 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 409 transitions. [2022-03-20 02:53:13,261 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 02:53:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 409 transitions. [2022-03-20 02:53:13,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 02:53:13,262 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:13,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:13,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:53:13,262 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:13,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1580788918, now seen corresponding path program 1 times [2022-03-20 02:53:13,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:13,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741978293] [2022-03-20 02:53:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:13,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:13,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:13,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:13,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741978293] [2022-03-20 02:53:13,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741978293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:13,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:13,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868820153] [2022-03-20 02:53:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:13,345 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:13,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:13,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:13,367 INFO L87 Difference]: Start difference. First operand 261 states and 409 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 02:53:15,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:15,029 INFO L93 Difference]: Finished difference Result 499 states and 791 transitions. [2022-03-20 02:53:15,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:15,030 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 87 [2022-03-20 02:53:15,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:15,031 INFO L225 Difference]: With dead ends: 499 [2022-03-20 02:53:15,031 INFO L226 Difference]: Without dead ends: 264 [2022-03-20 02:53:15,031 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 02:53:15,032 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:15,032 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:53:15,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-20 02:53:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-20 02:53:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.578125) internal successors, (404), 256 states have internal predecessors, (404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 408 transitions. [2022-03-20 02:53:15,037 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 408 transitions. Word has length 87 [2022-03-20 02:53:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:15,037 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 408 transitions. [2022-03-20 02:53:15,037 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 02:53:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 408 transitions. [2022-03-20 02:53:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 02:53:15,038 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:15,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:15,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:53:15,038 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:15,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2127873441, now seen corresponding path program 1 times [2022-03-20 02:53:15,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:15,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233279445] [2022-03-20 02:53:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:53:15,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:15,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233279445] [2022-03-20 02:53:15,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233279445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:15,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:15,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:15,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83306465] [2022-03-20 02:53:15,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:15,122 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:15,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:15,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:15,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:15,123 INFO L87 Difference]: Start difference. First operand 261 states and 408 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:16,155 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 02:53:17,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:17,489 INFO L93 Difference]: Finished difference Result 537 states and 846 transitions. [2022-03-20 02:53:17,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:17,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 02:53:17,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:17,490 INFO L225 Difference]: With dead ends: 537 [2022-03-20 02:53:17,490 INFO L226 Difference]: Without dead ends: 302 [2022-03-20 02:53:17,491 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 02:53:17,491 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:17,491 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:53:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-20 02:53:17,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-20 02:53:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5755395683453237) internal successors, (438), 278 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 442 transitions. [2022-03-20 02:53:17,497 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 442 transitions. Word has length 87 [2022-03-20 02:53:17,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:17,497 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 442 transitions. [2022-03-20 02:53:17,497 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:17,497 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 442 transitions. [2022-03-20 02:53:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 02:53:17,498 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:17,498 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:53:17,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:53:17,498 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:17,499 INFO L85 PathProgramCache]: Analyzing trace with hash 880442311, now seen corresponding path program 1 times [2022-03-20 02:53:17,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:17,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011653318] [2022-03-20 02:53:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:17,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:17,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:17,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011653318] [2022-03-20 02:53:17,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011653318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:17,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:17,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:17,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076443436] [2022-03-20 02:53:17,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:17,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:17,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:17,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:17,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:17,587 INFO L87 Difference]: Start difference. First operand 283 states and 442 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:20,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:21,353 INFO L93 Difference]: Finished difference Result 657 states and 1030 transitions. [2022-03-20 02:53:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:21,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-20 02:53:21,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:21,355 INFO L225 Difference]: With dead ends: 657 [2022-03-20 02:53:21,355 INFO L226 Difference]: Without dead ends: 400 [2022-03-20 02:53:21,356 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 02:53:21,356 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 142 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:21,356 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 360 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 02:53:21,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-03-20 02:53:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 299. [2022-03-20 02:53:21,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5578231292517006) internal successors, (458), 294 states have internal predecessors, (458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:21,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 462 transitions. [2022-03-20 02:53:21,362 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 462 transitions. Word has length 100 [2022-03-20 02:53:21,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:21,362 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 462 transitions. [2022-03-20 02:53:21,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:21,362 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 462 transitions. [2022-03-20 02:53:21,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 02:53:21,363 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:21,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:21,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:53:21,363 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:21,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:21,363 INFO L85 PathProgramCache]: Analyzing trace with hash -130486748, now seen corresponding path program 1 times [2022-03-20 02:53:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:21,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480453986] [2022-03-20 02:53:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:21,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:21,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:21,448 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:21,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:21,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480453986] [2022-03-20 02:53:21,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480453986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:21,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:21,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:21,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010950891] [2022-03-20 02:53:21,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:21,448 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:21,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:21,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:21,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:21,449 INFO L87 Difference]: Start difference. First operand 299 states and 462 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:23,425 INFO L93 Difference]: Finished difference Result 649 states and 1003 transitions. [2022-03-20 02:53:23,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:23,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-03-20 02:53:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:23,426 INFO L225 Difference]: With dead ends: 649 [2022-03-20 02:53:23,426 INFO L226 Difference]: Without dead ends: 376 [2022-03-20 02:53:23,427 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 02:53:23,427 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:23,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:53:23,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-20 02:53:23,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 299. [2022-03-20 02:53:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5442176870748299) internal successors, (454), 294 states have internal predecessors, (454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:23,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 458 transitions. [2022-03-20 02:53:23,432 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 458 transitions. Word has length 101 [2022-03-20 02:53:23,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:23,433 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 458 transitions. [2022-03-20 02:53:23,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:23,433 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 458 transitions. [2022-03-20 02:53:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-20 02:53:23,433 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:23,434 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:23,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:53:23,434 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:23,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1045112784, now seen corresponding path program 1 times [2022-03-20 02:53:23,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:23,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979347] [2022-03-20 02:53:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:23,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-20 02:53:23,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:23,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979347] [2022-03-20 02:53:23,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:23,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:23,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078633432] [2022-03-20 02:53:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:23,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:23,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:23,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:23,516 INFO L87 Difference]: Start difference. First operand 299 states and 458 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 02:53:24,799 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 02:53:26,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:26,201 INFO L93 Difference]: Finished difference Result 584 states and 901 transitions. [2022-03-20 02:53:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:26,202 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 102 [2022-03-20 02:53:26,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:26,203 INFO L225 Difference]: With dead ends: 584 [2022-03-20 02:53:26,203 INFO L226 Difference]: Without dead ends: 311 [2022-03-20 02:53:26,203 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 02:53:26,204 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:26,204 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:53:26,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-20 02:53:26,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-20 02:53:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5408163265306123) internal successors, (453), 294 states have internal predecessors, (453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 457 transitions. [2022-03-20 02:53:26,209 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 457 transitions. Word has length 102 [2022-03-20 02:53:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:26,209 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 457 transitions. [2022-03-20 02:53:26,209 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 02:53:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 457 transitions. [2022-03-20 02:53:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-20 02:53:26,209 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:26,210 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:26,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:53:26,210 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1460823327, now seen corresponding path program 1 times [2022-03-20 02:53:26,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:26,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995125205] [2022-03-20 02:53:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:26,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:26,295 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:26,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:26,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995125205] [2022-03-20 02:53:26,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995125205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:26,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:26,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:26,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272954973] [2022-03-20 02:53:26,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:26,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:26,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:26,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:26,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:26,296 INFO L87 Difference]: Start difference. First operand 299 states and 457 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:28,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:28,867 INFO L93 Difference]: Finished difference Result 589 states and 907 transitions. [2022-03-20 02:53:28,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:28,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-20 02:53:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:28,868 INFO L225 Difference]: With dead ends: 589 [2022-03-20 02:53:28,868 INFO L226 Difference]: Without dead ends: 316 [2022-03-20 02:53:28,869 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 02:53:28,869 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 36 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:28,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:53:28,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-20 02:53:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2022-03-20 02:53:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5374149659863945) internal successors, (452), 294 states have internal predecessors, (452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 456 transitions. [2022-03-20 02:53:28,874 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 456 transitions. Word has length 103 [2022-03-20 02:53:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:28,875 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 456 transitions. [2022-03-20 02:53:28,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:28,875 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 456 transitions. [2022-03-20 02:53:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-20 02:53:28,875 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:28,876 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:28,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:53:28,876 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:28,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:28,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1486400636, now seen corresponding path program 1 times [2022-03-20 02:53:28,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:28,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041351734] [2022-03-20 02:53:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:28,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:53:28,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:28,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041351734] [2022-03-20 02:53:28,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041351734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:28,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:28,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:28,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730265153] [2022-03-20 02:53:28,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:28,961 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:28,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:28,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:28,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:28,962 INFO L87 Difference]: Start difference. First operand 299 states and 456 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 02:53:31,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:31,861 INFO L93 Difference]: Finished difference Result 579 states and 892 transitions. [2022-03-20 02:53:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:31,862 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 105 [2022-03-20 02:53:31,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:31,863 INFO L225 Difference]: With dead ends: 579 [2022-03-20 02:53:31,863 INFO L226 Difference]: Without dead ends: 306 [2022-03-20 02:53:31,863 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 02:53:31,864 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 26 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:31,864 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 525 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:53:31,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-03-20 02:53:31,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2022-03-20 02:53:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-20 02:53:31,878 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 105 [2022-03-20 02:53:31,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:31,878 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-20 02:53:31,878 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 02:53:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-20 02:53:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 02:53:31,879 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:31,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:31,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:53:31,879 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash -541256236, now seen corresponding path program 1 times [2022-03-20 02:53:31,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:31,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604741871] [2022-03-20 02:53:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:31,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:31,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:53:31,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:31,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604741871] [2022-03-20 02:53:31,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604741871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:31,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:31,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:31,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386383443] [2022-03-20 02:53:31,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:31,973 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:31,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:31,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:31,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:31,973 INFO L87 Difference]: Start difference. First operand 299 states and 455 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 02:53:33,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:34,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:36,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:36,143 INFO L93 Difference]: Finished difference Result 661 states and 1011 transitions. [2022-03-20 02:53:36,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:36,144 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 109 [2022-03-20 02:53:36,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:36,145 INFO L225 Difference]: With dead ends: 661 [2022-03-20 02:53:36,145 INFO L226 Difference]: Without dead ends: 388 [2022-03-20 02:53:36,146 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 02:53:36,146 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 84 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:36,146 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 493 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 02:53:36,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-03-20 02:53:36,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 327. [2022-03-20 02:53:36,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.531055900621118) internal successors, (493), 322 states have internal predecessors, (493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 497 transitions. [2022-03-20 02:53:36,152 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 497 transitions. Word has length 109 [2022-03-20 02:53:36,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:36,152 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 497 transitions. [2022-03-20 02:53:36,152 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 02:53:36,152 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 497 transitions. [2022-03-20 02:53:36,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 02:53:36,153 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:36,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:36,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:53:36,153 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:36,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1420318422, now seen corresponding path program 1 times [2022-03-20 02:53:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:36,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790569480] [2022-03-20 02:53:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:36,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:53:36,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:36,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790569480] [2022-03-20 02:53:36,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790569480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:36,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:36,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:36,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36012475] [2022-03-20 02:53:36,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:36,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:36,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:36,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:36,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:36,247 INFO L87 Difference]: Start difference. First operand 327 states and 497 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 02:53:38,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:38,780 INFO L93 Difference]: Finished difference Result 745 states and 1138 transitions. [2022-03-20 02:53:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:38,780 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 109 [2022-03-20 02:53:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:38,781 INFO L225 Difference]: With dead ends: 745 [2022-03-20 02:53:38,781 INFO L226 Difference]: Without dead ends: 444 [2022-03-20 02:53:38,782 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 02:53:38,782 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 131 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:38,783 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 360 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:53:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-20 02:53:38,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 325. [2022-03-20 02:53:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.528125) internal successors, (489), 320 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 493 transitions. [2022-03-20 02:53:38,788 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 493 transitions. Word has length 109 [2022-03-20 02:53:38,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:38,789 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 493 transitions. [2022-03-20 02:53:38,789 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 02:53:38,789 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 493 transitions. [2022-03-20 02:53:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 02:53:38,789 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:38,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:38,790 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:53:38,790 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:38,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:38,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1022958803, now seen corresponding path program 1 times [2022-03-20 02:53:38,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:38,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167136575] [2022-03-20 02:53:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:38,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:38,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:53:38,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:38,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167136575] [2022-03-20 02:53:38,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167136575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:38,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:38,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:38,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509788088] [2022-03-20 02:53:38,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:38,877 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:38,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:38,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:38,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:38,877 INFO L87 Difference]: Start difference. First operand 325 states and 493 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 02:53:41,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:41,915 INFO L93 Difference]: Finished difference Result 711 states and 1083 transitions. [2022-03-20 02:53:41,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:41,916 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 110 [2022-03-20 02:53:41,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:41,917 INFO L225 Difference]: With dead ends: 711 [2022-03-20 02:53:41,917 INFO L226 Difference]: Without dead ends: 412 [2022-03-20 02:53:41,918 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 02:53:41,918 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 81 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:41,918 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 493 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:53:41,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-03-20 02:53:41,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 354. [2022-03-20 02:53:41,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 349 states have (on average 1.524355300859599) internal successors, (532), 349 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 536 transitions. [2022-03-20 02:53:41,924 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 536 transitions. Word has length 110 [2022-03-20 02:53:41,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:41,924 INFO L478 AbstractCegarLoop]: Abstraction has 354 states and 536 transitions. [2022-03-20 02:53:41,924 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 02:53:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 536 transitions. [2022-03-20 02:53:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 02:53:41,925 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:41,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:41,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:53:41,925 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:41,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash 623048725, now seen corresponding path program 1 times [2022-03-20 02:53:41,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:41,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374347602] [2022-03-20 02:53:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:41,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:53:42,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:42,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374347602] [2022-03-20 02:53:42,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374347602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:42,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:42,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:42,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928683473] [2022-03-20 02:53:42,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:42,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:42,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:42,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:42,039 INFO L87 Difference]: Start difference. First operand 354 states and 536 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 02:53:44,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:45,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:45,084 INFO L93 Difference]: Finished difference Result 737 states and 1121 transitions. [2022-03-20 02:53:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:45,085 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 110 [2022-03-20 02:53:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:45,086 INFO L225 Difference]: With dead ends: 737 [2022-03-20 02:53:45,086 INFO L226 Difference]: Without dead ends: 409 [2022-03-20 02:53:45,087 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 02:53:45,087 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 74 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:45,087 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 499 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:53:45,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-03-20 02:53:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 359. [2022-03-20 02:53:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 354 states have (on average 1.5225988700564972) internal successors, (539), 354 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 543 transitions. [2022-03-20 02:53:45,093 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 543 transitions. Word has length 110 [2022-03-20 02:53:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:45,093 INFO L478 AbstractCegarLoop]: Abstraction has 359 states and 543 transitions. [2022-03-20 02:53:45,093 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 02:53:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 543 transitions. [2022-03-20 02:53:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 02:53:45,094 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:45,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:45,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:53:45,094 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:45,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:45,095 INFO L85 PathProgramCache]: Analyzing trace with hash -343686549, now seen corresponding path program 1 times [2022-03-20 02:53:45,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:45,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385095545] [2022-03-20 02:53:45,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:45,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:45,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-20 02:53:45,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:45,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385095545] [2022-03-20 02:53:45,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385095545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:45,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:45,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253742085] [2022-03-20 02:53:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:45,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:45,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:45,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:45,183 INFO L87 Difference]: Start difference. First operand 359 states and 543 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:47,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:47,634 INFO L93 Difference]: Finished difference Result 738 states and 1123 transitions. [2022-03-20 02:53:47,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:47,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-20 02:53:47,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:47,636 INFO L225 Difference]: With dead ends: 738 [2022-03-20 02:53:47,636 INFO L226 Difference]: Without dead ends: 405 [2022-03-20 02:53:47,637 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 02:53:47,637 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:47,637 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 603 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:53:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-20 02:53:47,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 383. [2022-03-20 02:53:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5211640211640212) internal successors, (575), 378 states have internal predecessors, (575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 579 transitions. [2022-03-20 02:53:47,643 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 579 transitions. Word has length 110 [2022-03-20 02:53:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:47,644 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 579 transitions. [2022-03-20 02:53:47,644 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:47,644 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 579 transitions. [2022-03-20 02:53:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 02:53:47,645 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:47,645 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:47,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:53:47,645 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:47,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1495666253, now seen corresponding path program 1 times [2022-03-20 02:53:47,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:47,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619567528] [2022-03-20 02:53:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:47,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:53:47,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:47,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619567528] [2022-03-20 02:53:47,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619567528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:47,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:47,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:47,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71222410] [2022-03-20 02:53:47,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:47,757 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:47,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:47,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:47,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:47,758 INFO L87 Difference]: Start difference. First operand 383 states and 579 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 02:53:49,771 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 02:53:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:50,216 INFO L93 Difference]: Finished difference Result 857 states and 1301 transitions. [2022-03-20 02:53:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:50,217 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 121 [2022-03-20 02:53:50,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:50,218 INFO L225 Difference]: With dead ends: 857 [2022-03-20 02:53:50,218 INFO L226 Difference]: Without dead ends: 500 [2022-03-20 02:53:50,219 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 02:53:50,219 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 120 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:50,220 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 346 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:53:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-03-20 02:53:50,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 420. [2022-03-20 02:53:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 415 states have internal predecessors, (633), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 637 transitions. [2022-03-20 02:53:50,226 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 637 transitions. Word has length 121 [2022-03-20 02:53:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:50,227 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 637 transitions. [2022-03-20 02:53:50,227 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 02:53:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 637 transitions. [2022-03-20 02:53:50,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 02:53:50,228 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:50,228 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:50,228 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:53:50,228 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:50,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:50,228 INFO L85 PathProgramCache]: Analyzing trace with hash 370746785, now seen corresponding path program 1 times [2022-03-20 02:53:50,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:50,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662471519] [2022-03-20 02:53:50,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:50,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:50,316 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:53:50,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:50,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662471519] [2022-03-20 02:53:50,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662471519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:50,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:50,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:50,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533960148] [2022-03-20 02:53:50,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:50,317 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:50,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:50,319 INFO L87 Difference]: Start difference. First operand 420 states and 637 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 02:53:52,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:52,609 INFO L93 Difference]: Finished difference Result 891 states and 1353 transitions. [2022-03-20 02:53:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:52,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 02:53:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:52,610 INFO L225 Difference]: With dead ends: 891 [2022-03-20 02:53:52,610 INFO L226 Difference]: Without dead ends: 497 [2022-03-20 02:53:52,611 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 02:53:52,612 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 119 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:52,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:53:52,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-03-20 02:53:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 420. [2022-03-20 02:53:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5204819277108435) internal successors, (631), 415 states have internal predecessors, (631), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 635 transitions. [2022-03-20 02:53:52,619 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 635 transitions. Word has length 122 [2022-03-20 02:53:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:52,620 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 635 transitions. [2022-03-20 02:53:52,620 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 02:53:52,620 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 635 transitions. [2022-03-20 02:53:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-20 02:53:52,620 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:52,621 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:52,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 02:53:52,621 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:52,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:52,621 INFO L85 PathProgramCache]: Analyzing trace with hash 949148907, now seen corresponding path program 1 times [2022-03-20 02:53:52,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:52,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478291416] [2022-03-20 02:53:52,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:52,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 02:53:52,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:52,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478291416] [2022-03-20 02:53:52,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478291416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:52,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:52,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:52,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350483573] [2022-03-20 02:53:52,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:52,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:52,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:52,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:52,718 INFO L87 Difference]: Start difference. First operand 420 states and 635 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:54,404 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 02:53:56,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:56,307 INFO L93 Difference]: Finished difference Result 862 states and 1307 transitions. [2022-03-20 02:53:56,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:56,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-20 02:53:56,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:56,309 INFO L225 Difference]: With dead ends: 862 [2022-03-20 02:53:56,309 INFO L226 Difference]: Without dead ends: 468 [2022-03-20 02:53:56,310 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 02:53:56,310 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 89 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:56,310 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 525 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:53:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-20 02:53:56,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 420. [2022-03-20 02:53:56,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5180722891566265) internal successors, (630), 415 states have internal predecessors, (630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:56,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 634 transitions. [2022-03-20 02:53:56,317 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 634 transitions. Word has length 126 [2022-03-20 02:53:56,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:56,317 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 634 transitions. [2022-03-20 02:53:56,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 634 transitions. [2022-03-20 02:53:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-20 02:53:56,318 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:56,318 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:56,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:53:56,319 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:56,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1788182569, now seen corresponding path program 1 times [2022-03-20 02:53:56,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:56,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533272484] [2022-03-20 02:53:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:56,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 02:53:56,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:56,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533272484] [2022-03-20 02:53:56,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533272484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:56,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:56,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:56,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448508054] [2022-03-20 02:53:56,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:56,409 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:56,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:56,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:56,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:56,409 INFO L87 Difference]: Start difference. First operand 420 states and 634 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:58,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:00,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:01,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:01,095 INFO L93 Difference]: Finished difference Result 836 states and 1268 transitions. [2022-03-20 02:54:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:01,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-20 02:54:01,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:01,097 INFO L225 Difference]: With dead ends: 836 [2022-03-20 02:54:01,097 INFO L226 Difference]: Without dead ends: 442 [2022-03-20 02:54:01,097 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 02:54:01,098 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 46 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:01,098 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 603 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:54:01,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-20 02:54:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 420. [2022-03-20 02:54:01,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5156626506024096) internal successors, (629), 415 states have internal predecessors, (629), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 633 transitions. [2022-03-20 02:54:01,104 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 633 transitions. Word has length 126 [2022-03-20 02:54:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:01,105 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 633 transitions. [2022-03-20 02:54:01,105 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 633 transitions. [2022-03-20 02:54:01,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-20 02:54:01,105 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:01,106 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:01,106 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:54:01,106 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:01,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:01,106 INFO L85 PathProgramCache]: Analyzing trace with hash 46620656, now seen corresponding path program 1 times [2022-03-20 02:54:01,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:01,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865177739] [2022-03-20 02:54:01,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:01,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:01,214 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 02:54:01,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:01,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865177739] [2022-03-20 02:54:01,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865177739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:01,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:01,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:01,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116680286] [2022-03-20 02:54:01,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:01,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:01,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:01,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:01,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:01,216 INFO L87 Difference]: Start difference. First operand 420 states and 633 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:03,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:03,203 INFO L93 Difference]: Finished difference Result 891 states and 1345 transitions. [2022-03-20 02:54:03,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:03,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-03-20 02:54:03,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:03,205 INFO L225 Difference]: With dead ends: 891 [2022-03-20 02:54:03,205 INFO L226 Difference]: Without dead ends: 497 [2022-03-20 02:54:03,206 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 02:54:03,206 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:03,206 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:54:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-03-20 02:54:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 420. [2022-03-20 02:54:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4963855421686747) internal successors, (621), 415 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 625 transitions. [2022-03-20 02:54:03,212 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 625 transitions. Word has length 128 [2022-03-20 02:54:03,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:03,213 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 625 transitions. [2022-03-20 02:54:03,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 625 transitions. [2022-03-20 02:54:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 02:54:03,214 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:03,214 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 02:54:03,214 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:54:03,214 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:03,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:03,214 INFO L85 PathProgramCache]: Analyzing trace with hash -149695392, now seen corresponding path program 1 times [2022-03-20 02:54:03,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:03,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158492795] [2022-03-20 02:54:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:03,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:03,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:03,316 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 02:54:03,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158492795] [2022-03-20 02:54:03,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158492795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:03,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:03,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767351625] [2022-03-20 02:54:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:03,317 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:03,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:03,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:03,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:03,318 INFO L87 Difference]: Start difference. First operand 420 states and 625 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 02:54:04,931 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 02:54:07,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:07,463 INFO L93 Difference]: Finished difference Result 931 states and 1390 transitions. [2022-03-20 02:54:07,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:07,464 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 02:54:07,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:07,465 INFO L225 Difference]: With dead ends: 931 [2022-03-20 02:54:07,465 INFO L226 Difference]: Without dead ends: 537 [2022-03-20 02:54:07,466 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 02:54:07,466 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 111 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:07,467 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 347 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 02:54:07,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-03-20 02:54:07,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 463. [2022-03-20 02:54:07,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.5) internal successors, (687), 458 states have internal predecessors, (687), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 691 transitions. [2022-03-20 02:54:07,473 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 691 transitions. Word has length 130 [2022-03-20 02:54:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:07,473 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 691 transitions. [2022-03-20 02:54:07,474 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 02:54:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 691 transitions. [2022-03-20 02:54:07,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:54:07,474 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:07,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:07,475 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:54:07,475 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:07,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:07,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1183688361, now seen corresponding path program 1 times [2022-03-20 02:54:07,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:07,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98325352] [2022-03-20 02:54:07,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:07,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-20 02:54:07,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:07,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98325352] [2022-03-20 02:54:07,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98325352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:07,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:07,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:07,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124993160] [2022-03-20 02:54:07,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:07,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:07,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:07,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:07,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:07,563 INFO L87 Difference]: Start difference. First operand 463 states and 691 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:09,572 INFO L93 Difference]: Finished difference Result 938 states and 1405 transitions. [2022-03-20 02:54:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:09,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have 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 02:54:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:09,574 INFO L225 Difference]: With dead ends: 938 [2022-03-20 02:54:09,574 INFO L226 Difference]: Without dead ends: 501 [2022-03-20 02:54:09,574 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 02:54:09,575 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 68 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:09,575 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 529 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:54:09,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-03-20 02:54:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 463. [2022-03-20 02:54:09,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.497816593886463) internal successors, (686), 458 states have internal predecessors, (686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 690 transitions. [2022-03-20 02:54:09,608 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 690 transitions. Word has length 131 [2022-03-20 02:54:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:09,608 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 690 transitions. [2022-03-20 02:54:09,608 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 690 transitions. [2022-03-20 02:54:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:54:09,609 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:09,609 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 02:54:09,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:54:09,609 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:09,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:09,609 INFO L85 PathProgramCache]: Analyzing trace with hash 913993068, now seen corresponding path program 1 times [2022-03-20 02:54:09,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:09,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666968228] [2022-03-20 02:54:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:09,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:09,699 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 02:54:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:09,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666968228] [2022-03-20 02:54:09,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666968228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:09,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:09,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:09,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648509219] [2022-03-20 02:54:09,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:09,700 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:09,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:09,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:09,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:09,700 INFO L87 Difference]: Start difference. First operand 463 states and 690 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 02:54:11,371 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 02:54:12,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:12,836 INFO L93 Difference]: Finished difference Result 977 states and 1459 transitions. [2022-03-20 02:54:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:12,836 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 02:54:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:12,838 INFO L225 Difference]: With dead ends: 977 [2022-03-20 02:54:12,838 INFO L226 Difference]: Without dead ends: 538 [2022-03-20 02:54:12,838 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 02:54:12,839 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 112 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:12,839 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 360 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:54:12,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-03-20 02:54:12,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 465. [2022-03-20 02:54:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 460 states have (on average 1.4978260869565216) internal successors, (689), 460 states have internal predecessors, (689), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 693 transitions. [2022-03-20 02:54:12,845 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 693 transitions. Word has length 131 [2022-03-20 02:54:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:12,845 INFO L478 AbstractCegarLoop]: Abstraction has 465 states and 693 transitions. [2022-03-20 02:54:12,845 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 02:54:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 693 transitions. [2022-03-20 02:54:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:54:12,846 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:12,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:12,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 02:54:12,847 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash 141167833, now seen corresponding path program 1 times [2022-03-20 02:54:12,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:12,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022564182] [2022-03-20 02:54:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:12,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:12,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 02:54:12,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:12,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022564182] [2022-03-20 02:54:12,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022564182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:12,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:12,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:12,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822317305] [2022-03-20 02:54:12,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:12,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:12,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:12,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:12,956 INFO L87 Difference]: Start difference. First operand 465 states and 693 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:14,712 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 02:54:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:15,759 INFO L93 Difference]: Finished difference Result 1295 states and 1949 transitions. [2022-03-20 02:54:15,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:54:15,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:54:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:15,762 INFO L225 Difference]: With dead ends: 1295 [2022-03-20 02:54:15,762 INFO L226 Difference]: Without dead ends: 856 [2022-03-20 02:54:15,762 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 02:54:15,763 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:15,763 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 441 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:54:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-03-20 02:54:15,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2022-03-20 02:54:15,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 851 states have (on average 1.4947121034077555) internal successors, (1272), 851 states have internal predecessors, (1272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:15,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1276 transitions. [2022-03-20 02:54:15,774 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1276 transitions. Word has length 131 [2022-03-20 02:54:15,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:15,774 INFO L478 AbstractCegarLoop]: Abstraction has 856 states and 1276 transitions. [2022-03-20 02:54:15,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1276 transitions. [2022-03-20 02:54:15,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:54:15,776 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:15,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:15,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 02:54:15,776 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:15,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:15,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2017650651, now seen corresponding path program 1 times [2022-03-20 02:54:15,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:15,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383523534] [2022-03-20 02:54:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:15,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:15,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-20 02:54:15,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:15,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383523534] [2022-03-20 02:54:15,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383523534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:15,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:15,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:15,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031943601] [2022-03-20 02:54:15,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:15,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:15,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:15,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:15,858 INFO L87 Difference]: Start difference. First operand 856 states and 1276 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:17,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:17,212 INFO L93 Difference]: Finished difference Result 1713 states and 2559 transitions. [2022-03-20 02:54:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:54:17,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have 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 02:54:17,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:17,215 INFO L225 Difference]: With dead ends: 1713 [2022-03-20 02:54:17,215 INFO L226 Difference]: Without dead ends: 883 [2022-03-20 02:54:17,216 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 02:54:17,216 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:17,216 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 02:54:17,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-20 02:54:17,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-03-20 02:54:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 878 states have (on average 1.4886104783599088) internal successors, (1307), 878 states have internal predecessors, (1307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2022-03-20 02:54:17,227 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 131 [2022-03-20 02:54:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:17,227 INFO L478 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2022-03-20 02:54:17,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:17,227 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2022-03-20 02:54:17,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:54:17,228 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:17,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:17,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:54:17,229 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:17,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:17,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2136092125, now seen corresponding path program 1 times [2022-03-20 02:54:17,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:17,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261476041] [2022-03-20 02:54:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:17,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 02:54:17,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:17,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261476041] [2022-03-20 02:54:17,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261476041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:17,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:17,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:17,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799617688] [2022-03-20 02:54:17,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:17,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:17,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:17,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:17,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:17,340 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:19,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:19,057 INFO L93 Difference]: Finished difference Result 1742 states and 2595 transitions. [2022-03-20 02:54:19,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:54:19,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have 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 02:54:19,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:19,059 INFO L225 Difference]: With dead ends: 1742 [2022-03-20 02:54:19,059 INFO L226 Difference]: Without dead ends: 885 [2022-03-20 02:54:19,061 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 02:54:19,061 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:19,061 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:54:19,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-03-20 02:54:19,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 885. [2022-03-20 02:54:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 880 states have (on average 1.4875) internal successors, (1309), 880 states have internal predecessors, (1309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1313 transitions. [2022-03-20 02:54:19,073 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1313 transitions. Word has length 131 [2022-03-20 02:54:19,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:19,074 INFO L478 AbstractCegarLoop]: Abstraction has 885 states and 1313 transitions. [2022-03-20 02:54:19,074 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1313 transitions. [2022-03-20 02:54:19,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 02:54:19,075 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:19,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:19,076 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 02:54:19,076 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:19,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:19,076 INFO L85 PathProgramCache]: Analyzing trace with hash -997450557, now seen corresponding path program 1 times [2022-03-20 02:54:19,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:19,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959172291] [2022-03-20 02:54:19,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:19,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 02:54:19,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:19,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959172291] [2022-03-20 02:54:19,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959172291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:19,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:19,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:19,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114097869] [2022-03-20 02:54:19,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:19,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:19,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:19,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:19,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:19,177 INFO L87 Difference]: Start difference. First operand 885 states and 1313 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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 02:54:20,723 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 02:54:21,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:21,170 INFO L93 Difference]: Finished difference Result 2181 states and 3257 transitions. [2022-03-20 02:54:21,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:54:21,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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 133 [2022-03-20 02:54:21,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:21,174 INFO L225 Difference]: With dead ends: 2181 [2022-03-20 02:54:21,174 INFO L226 Difference]: Without dead ends: 1324 [2022-03-20 02:54:21,175 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 02:54:21,175 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:21,175 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:54:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-03-20 02:54:21,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1322. [2022-03-20 02:54:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1317 states have (on average 1.4950645406226273) internal successors, (1969), 1317 states have internal predecessors, (1969), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1973 transitions. [2022-03-20 02:54:21,219 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1973 transitions. Word has length 133 [2022-03-20 02:54:21,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:21,219 INFO L478 AbstractCegarLoop]: Abstraction has 1322 states and 1973 transitions. [2022-03-20 02:54:21,219 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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 02:54:21,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1973 transitions. [2022-03-20 02:54:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 02:54:21,221 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:21,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:21,221 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:54:21,221 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:21,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1473303164, now seen corresponding path program 1 times [2022-03-20 02:54:21,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:21,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407819620] [2022-03-20 02:54:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:21,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:21,322 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 02:54:21,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:21,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407819620] [2022-03-20 02:54:21,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407819620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:21,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:21,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:21,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267904808] [2022-03-20 02:54:21,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:21,324 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:21,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:21,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:21,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:21,325 INFO L87 Difference]: Start difference. First operand 1322 states and 1973 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:23,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:23,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:23,800 INFO L93 Difference]: Finished difference Result 1763 states and 2637 transitions. [2022-03-20 02:54:23,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:54:23,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 02:54:23,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:23,805 INFO L225 Difference]: With dead ends: 1763 [2022-03-20 02:54:23,805 INFO L226 Difference]: Without dead ends: 1761 [2022-03-20 02:54:23,806 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 02:54:23,806 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:23,806 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:54:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-03-20 02:54:23,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1759. [2022-03-20 02:54:23,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1754 states have (on average 1.499429874572406) internal successors, (2630), 1754 states have internal predecessors, (2630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:23,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2634 transitions. [2022-03-20 02:54:23,835 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2634 transitions. Word has length 134 [2022-03-20 02:54:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:23,835 INFO L478 AbstractCegarLoop]: Abstraction has 1759 states and 2634 transitions. [2022-03-20 02:54:23,835 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:23,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2634 transitions. [2022-03-20 02:54:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 02:54:23,837 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:23,837 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:23,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:54:23,837 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:23,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:23,837 INFO L85 PathProgramCache]: Analyzing trace with hash -924650012, now seen corresponding path program 1 times [2022-03-20 02:54:23,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:23,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719590120] [2022-03-20 02:54:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:23,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:54:23,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:23,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719590120] [2022-03-20 02:54:23,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719590120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:23,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:23,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:23,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869233745] [2022-03-20 02:54:23,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:23,958 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:23,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:23,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:23,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:23,958 INFO L87 Difference]: Start difference. First operand 1759 states and 2634 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 02:54:25,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:27,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:27,278 INFO L93 Difference]: Finished difference Result 4083 states and 6108 transitions. [2022-03-20 02:54:27,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:27,278 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 140 [2022-03-20 02:54:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:27,283 INFO L225 Difference]: With dead ends: 4083 [2022-03-20 02:54:27,284 INFO L226 Difference]: Without dead ends: 2352 [2022-03-20 02:54:27,286 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 02:54:27,286 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 120 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:27,286 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 376 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 02:54:27,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-03-20 02:54:27,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1995. [2022-03-20 02:54:27,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1990 states have (on average 1.4969849246231155) internal successors, (2979), 1990 states have internal predecessors, (2979), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2983 transitions. [2022-03-20 02:54:27,316 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2983 transitions. Word has length 140 [2022-03-20 02:54:27,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:27,316 INFO L478 AbstractCegarLoop]: Abstraction has 1995 states and 2983 transitions. [2022-03-20 02:54:27,316 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 02:54:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2983 transitions. [2022-03-20 02:54:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 02:54:27,318 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:27,318 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, 1, 1] [2022-03-20 02:54:27,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 02:54:27,319 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash -516884985, now seen corresponding path program 1 times [2022-03-20 02:54:27,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:27,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735133875] [2022-03-20 02:54:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:27,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:27,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-03-20 02:54:27,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:27,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735133875] [2022-03-20 02:54:27,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735133875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:27,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:27,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:27,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769367880] [2022-03-20 02:54:27,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:27,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:27,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:27,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:27,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:27,441 INFO L87 Difference]: Start difference. First operand 1995 states and 2983 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 02:54:29,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:29,647 INFO L93 Difference]: Finished difference Result 4058 states and 6063 transitions. [2022-03-20 02:54:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:29,647 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 167 [2022-03-20 02:54:29,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:29,652 INFO L225 Difference]: With dead ends: 4058 [2022-03-20 02:54:29,652 INFO L226 Difference]: Without dead ends: 2091 [2022-03-20 02:54:29,655 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 02:54:29,655 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 38 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:29,655 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 568 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:54:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2022-03-20 02:54:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 1995. [2022-03-20 02:54:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1990 states have (on average 1.4949748743718594) internal successors, (2975), 1990 states have internal predecessors, (2975), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2979 transitions. [2022-03-20 02:54:29,685 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2979 transitions. Word has length 167 [2022-03-20 02:54:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:29,686 INFO L478 AbstractCegarLoop]: Abstraction has 1995 states and 2979 transitions. [2022-03-20 02:54:29,686 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 02:54:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2979 transitions. [2022-03-20 02:54:29,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 02:54:29,688 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:29,688 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:29,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 02:54:29,688 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:29,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1391450317, now seen corresponding path program 1 times [2022-03-20 02:54:29,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:29,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359198162] [2022-03-20 02:54:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:29,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:29,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:29,799 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-20 02:54:29,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:29,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359198162] [2022-03-20 02:54:29,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359198162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:29,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:29,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:54:29,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998759946] [2022-03-20 02:54:29,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:29,800 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:54:29,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:29,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:54:29,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:54:29,800 INFO L87 Difference]: Start difference. First operand 1995 states and 2979 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 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 02:54:31,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:32,282 INFO L93 Difference]: Finished difference Result 4002 states and 5978 transitions. [2022-03-20 02:54:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:54:32,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 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 168 [2022-03-20 02:54:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:32,287 INFO L225 Difference]: With dead ends: 4002 [2022-03-20 02:54:32,287 INFO L226 Difference]: Without dead ends: 2035 [2022-03-20 02:54:32,290 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 02:54:32,290 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 151 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:32,290 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 371 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:54:32,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2022-03-20 02:54:32,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2031. [2022-03-20 02:54:32,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4901283316880554) internal successors, (3019), 2026 states have internal predecessors, (3019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3023 transitions. [2022-03-20 02:54:32,321 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3023 transitions. Word has length 168 [2022-03-20 02:54:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:32,322 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 3023 transitions. [2022-03-20 02:54:32,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 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 02:54:32,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3023 transitions. [2022-03-20 02:54:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 02:54:32,324 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:32,324 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 02:54:32,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:54:32,324 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:32,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash 428867290, now seen corresponding path program 1 times [2022-03-20 02:54:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:32,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238242465] [2022-03-20 02:54:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:32,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:32,418 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 02:54:32,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:32,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238242465] [2022-03-20 02:54:32,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238242465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:32,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:32,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:32,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266164580] [2022-03-20 02:54:32,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:32,420 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:32,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:32,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:32,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:32,421 INFO L87 Difference]: Start difference. First operand 2031 states and 3023 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 02:54:34,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:34,144 INFO L93 Difference]: Finished difference Result 4538 states and 6770 transitions. [2022-03-20 02:54:34,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:54:34,144 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 02:54:34,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:34,150 INFO L225 Difference]: With dead ends: 4538 [2022-03-20 02:54:34,150 INFO L226 Difference]: Without dead ends: 2535 [2022-03-20 02:54:34,152 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 02:54:34,152 INFO L913 BasicCegarLoop]: 383 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:34,152 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 577 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:54:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2022-03-20 02:54:34,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 2535. [2022-03-20 02:54:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2530 states have (on average 1.4889328063241107) internal successors, (3767), 2530 states have internal predecessors, (3767), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3771 transitions. [2022-03-20 02:54:34,189 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3771 transitions. Word has length 171 [2022-03-20 02:54:34,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:34,189 INFO L478 AbstractCegarLoop]: Abstraction has 2535 states and 3771 transitions. [2022-03-20 02:54:34,189 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 02:54:34,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3771 transitions. [2022-03-20 02:54:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 02:54:34,191 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:34,191 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 02:54:34,192 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:54:34,192 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:34,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:34,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1850647187, now seen corresponding path program 1 times [2022-03-20 02:54:34,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:34,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159594012] [2022-03-20 02:54:34,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:34,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:34,279 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 02:54:34,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:34,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159594012] [2022-03-20 02:54:34,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159594012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:34,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:34,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:34,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035881199] [2022-03-20 02:54:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:34,280 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:34,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:34,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:34,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:34,280 INFO L87 Difference]: Start difference. First operand 2535 states and 3771 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 02:54:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:36,990 INFO L93 Difference]: Finished difference Result 5509 states and 8210 transitions. [2022-03-20 02:54:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:54:36,991 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 02:54:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:36,995 INFO L225 Difference]: With dead ends: 5509 [2022-03-20 02:54:36,996 INFO L226 Difference]: Without dead ends: 3002 [2022-03-20 02:54:36,998 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 02:54:36,999 INFO L913 BasicCegarLoop]: 377 mSDtfsCounter, 137 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:36,999 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 571 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:54:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2022-03-20 02:54:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 3002. [2022-03-20 02:54:37,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2997 states have (on average 1.4881548214881548) internal successors, (4460), 2997 states have internal predecessors, (4460), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 4464 transitions. [2022-03-20 02:54:37,059 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 4464 transitions. Word has length 172 [2022-03-20 02:54:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:37,059 INFO L478 AbstractCegarLoop]: Abstraction has 3002 states and 4464 transitions. [2022-03-20 02:54:37,060 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 02:54:37,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 4464 transitions. [2022-03-20 02:54:37,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-03-20 02:54:37,063 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:37,063 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:37,063 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:54:37,063 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:37,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:37,064 INFO L85 PathProgramCache]: Analyzing trace with hash 118844937, now seen corresponding path program 1 times [2022-03-20 02:54:37,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:37,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348790552] [2022-03-20 02:54:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:37,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-03-20 02:54:37,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:37,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348790552] [2022-03-20 02:54:37,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348790552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:37,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:37,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:37,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257099612] [2022-03-20 02:54:37,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:37,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:37,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:37,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:37,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:37,176 INFO L87 Difference]: Start difference. First operand 3002 states and 4464 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 02:54:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:39,394 INFO L93 Difference]: Finished difference Result 6335 states and 9386 transitions. [2022-03-20 02:54:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:39,395 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 183 [2022-03-20 02:54:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:39,400 INFO L225 Difference]: With dead ends: 6335 [2022-03-20 02:54:39,400 INFO L226 Difference]: Without dead ends: 3361 [2022-03-20 02:54:39,403 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 02:54:39,404 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 133 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:39,404 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 390 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:54:39,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2022-03-20 02:54:39,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3002. [2022-03-20 02:54:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2997 states have (on average 1.470804137470804) internal successors, (4408), 2997 states have internal predecessors, (4408), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 4412 transitions. [2022-03-20 02:54:39,448 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 4412 transitions. Word has length 183 [2022-03-20 02:54:39,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:39,448 INFO L478 AbstractCegarLoop]: Abstraction has 3002 states and 4412 transitions. [2022-03-20 02:54:39,448 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 02:54:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 4412 transitions. [2022-03-20 02:54:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 02:54:39,451 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:39,451 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:39,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:54:39,451 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:39,452 INFO L85 PathProgramCache]: Analyzing trace with hash 937244990, now seen corresponding path program 1 times [2022-03-20 02:54:39,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:39,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161816053] [2022-03-20 02:54:39,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:39,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 252 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 02:54:39,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:39,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161816053] [2022-03-20 02:54:39,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161816053] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:54:39,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914712269] [2022-03-20 02:54:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:39,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:54:39,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:54:39,587 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 02:54:39,622 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 02:54:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:40,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 02:54:40,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:54:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-03-20 02:54:40,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 02:54:40,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914712269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:40,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 02:54:40,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-03-20 02:54:40,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717947742] [2022-03-20 02:54:40,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:40,611 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 02:54:40,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:40,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 02:54:40,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:54:40,612 INFO L87 Difference]: Start difference. First operand 3002 states and 4412 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:40,699 INFO L93 Difference]: Finished difference Result 6483 states and 9541 transitions. [2022-03-20 02:54:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 02:54:40,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2022-03-20 02:54:40,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:40,704 INFO L225 Difference]: With dead ends: 6483 [2022-03-20 02:54:40,704 INFO L226 Difference]: Without dead ends: 3509 [2022-03-20 02:54:40,707 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:54:40,707 INFO L913 BasicCegarLoop]: 386 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:40,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 580 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 02:54:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2022-03-20 02:54:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3507. [2022-03-20 02:54:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3502 states have (on average 1.4663049685893774) internal successors, (5135), 3502 states have internal predecessors, (5135), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 5139 transitions. [2022-03-20 02:54:40,759 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 5139 transitions. Word has length 189 [2022-03-20 02:54:40,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:40,760 INFO L478 AbstractCegarLoop]: Abstraction has 3507 states and 5139 transitions. [2022-03-20 02:54:40,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 5139 transitions. [2022-03-20 02:54:40,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-20 02:54:40,764 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:40,764 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-20 02:54:40,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 02:54:40,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-03-20 02:54:40,985 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:40,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:40,986 INFO L85 PathProgramCache]: Analyzing trace with hash -322711324, now seen corresponding path program 1 times [2022-03-20 02:54:40,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:40,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045418940] [2022-03-20 02:54:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:40,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 228 proven. 182 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 02:54:41,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:41,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045418940] [2022-03-20 02:54:41,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045418940] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:54:41,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186110047] [2022-03-20 02:54:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:41,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:54:41,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:54:41,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:54:41,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 02:54:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:42,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 40 conjunts are in the unsatisfiable core [2022-03-20 02:54:42,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:54:42,284 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:54:42,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:54:42,327 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:54:42,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:54:42,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:42,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 02:54:42,596 INFO L356 Elim1Store]: treesize reduction 50, result has 58.3 percent of original size [2022-03-20 02:54:42,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 85 [2022-03-20 02:54:42,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:42,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-20 02:54:43,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:43,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-20 02:54:43,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:43,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-20 02:54:43,413 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-20 02:54:43,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 65 [2022-03-20 02:54:43,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2022-03-20 02:54:43,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-03-20 02:54:43,475 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-03-20 02:54:43,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2022-03-20 02:54:43,496 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:54:43,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 02:54:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 244 proven. 108 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-20 02:54:43,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:54:44,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 62 [2022-03-20 02:54:44,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 50 [2022-03-20 02:54:44,239 INFO L356 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2022-03-20 02:54:44,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 1 [2022-03-20 02:54:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 257 proven. 36 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 02:54:44,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186110047] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 02:54:44,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 02:54:44,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-03-20 02:54:44,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690373496] [2022-03-20 02:54:44,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 02:54:44,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-20 02:54:44,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:44,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-20 02:54:44,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2022-03-20 02:54:44,404 INFO L87 Difference]: Start difference. First operand 3507 states and 5139 transitions. Second operand has 28 states, 28 states have (on average 12.321428571428571) internal successors, (345), 27 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:50,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:03,702 INFO L93 Difference]: Finished difference Result 36635 states and 53570 transitions. [2022-03-20 02:55:03,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-03-20 02:55:03,702 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 12.321428571428571) internal successors, (345), 27 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-20 02:55:03,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:03,765 INFO L225 Difference]: With dead ends: 36635 [2022-03-20 02:55:03,765 INFO L226 Difference]: Without dead ends: 33156 [2022-03-20 02:55:03,779 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 572 SyntacticMatches, 44 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14851 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=3788, Invalid=27012, Unknown=0, NotChecked=0, Total=30800 [2022-03-20 02:55:03,780 INFO L913 BasicCegarLoop]: 565 mSDtfsCounter, 4939 mSDsluCounter, 6996 mSDsCounter, 0 mSdLazyCounter, 6802 mSolverCounterSat, 934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4939 SdHoareTripleChecker+Valid, 7561 SdHoareTripleChecker+Invalid, 9614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 6802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1878 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:03,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4939 Valid, 7561 Invalid, 9614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [934 Valid, 6802 Invalid, 0 Unknown, 1878 Unchecked, 12.9s Time] [2022-03-20 02:55:03,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33156 states. [2022-03-20 02:55:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33156 to 19067. [2022-03-20 02:55:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19067 states, 19062 states have (on average 1.5133774000629525) internal successors, (28848), 19062 states have internal predecessors, (28848), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19067 states to 19067 states and 28852 transitions. [2022-03-20 02:55:04,387 INFO L78 Accepts]: Start accepts. Automaton has 19067 states and 28852 transitions. Word has length 244 [2022-03-20 02:55:04,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:04,387 INFO L478 AbstractCegarLoop]: Abstraction has 19067 states and 28852 transitions. [2022-03-20 02:55:04,387 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.321428571428571) internal successors, (345), 27 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 19067 states and 28852 transitions. [2022-03-20 02:55:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-20 02:55:04,408 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:04,408 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:55:04,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 02:55:04,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-03-20 02:55:04,623 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:04,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:04,624 INFO L85 PathProgramCache]: Analyzing trace with hash 717997704, now seen corresponding path program 1 times [2022-03-20 02:55:04,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:04,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845725044] [2022-03-20 02:55:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 290 proven. 84 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-03-20 02:55:05,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:05,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845725044] [2022-03-20 02:55:05,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845725044] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:55:05,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574166837] [2022-03-20 02:55:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:05,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:55:05,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:55:05,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:55:05,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 02:55:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:05,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 41 conjunts are in the unsatisfiable core [2022-03-20 02:55:05,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:55:05,998 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:55:05,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:55:06,035 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:55:06,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:55:06,178 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:55:06,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 02:55:06,190 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:55:06,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 02:55:06,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:06,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 02:55:06,232 INFO L356 Elim1Store]: treesize reduction 50, result has 58.3 percent of original size [2022-03-20 02:55:06,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 85 [2022-03-20 02:55:06,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:06,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-20 02:55:06,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:06,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 02:55:06,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:06,811 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 02:55:06,824 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-20 02:55:06,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 37 [2022-03-20 02:55:06,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2022-03-20 02:55:06,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-03-20 02:55:06,874 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-03-20 02:55:06,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2022-03-20 02:55:06,888 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:55:06,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 02:55:06,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:55:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 236 proven. 116 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-20 02:55:06,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:55:07,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-03-20 02:55:07,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2022-03-20 02:55:15,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,223 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-03-20 02:55:15,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1 [2022-03-20 02:55:15,347 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 257 proven. 36 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 02:55:15,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574166837] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 02:55:15,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 02:55:15,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 10] total 28 [2022-03-20 02:55:15,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015597635] [2022-03-20 02:55:15,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 02:55:15,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-20 02:55:15,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:15,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-20 02:55:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2022-03-20 02:55:15,350 INFO L87 Difference]: Start difference. First operand 19067 states and 28852 transitions. Second operand has 28 states, 28 states have (on average 12.107142857142858) internal successors, (339), 27 states have internal predecessors, (339), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:18,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:26,120 INFO L93 Difference]: Finished difference Result 47129 states and 70298 transitions. [2022-03-20 02:55:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-20 02:55:26,120 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 12.107142857142858) internal successors, (339), 27 states have internal predecessors, (339), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-20 02:55:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:26,162 INFO L225 Difference]: With dead ends: 47129 [2022-03-20 02:55:26,163 INFO L226 Difference]: Without dead ends: 28090 [2022-03-20 02:55:26,184 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 492 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=378, Invalid=2172, Unknown=0, NotChecked=0, Total=2550 [2022-03-20 02:55:26,185 INFO L913 BasicCegarLoop]: 369 mSDtfsCounter, 1066 mSDsluCounter, 4612 mSDsCounter, 0 mSdLazyCounter, 3765 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 4981 SdHoareTripleChecker+Invalid, 4476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 490 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:26,185 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 4981 Invalid, 4476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3765 Invalid, 0 Unknown, 490 Unchecked, 9.7s Time] [2022-03-20 02:55:26,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28090 states. [2022-03-20 02:55:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28090 to 19587. [2022-03-20 02:55:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19587 states, 19582 states have (on average 1.5125114901440098) internal successors, (29618), 19582 states have internal predecessors, (29618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19587 states to 19587 states and 29622 transitions. [2022-03-20 02:55:26,791 INFO L78 Accepts]: Start accepts. Automaton has 19587 states and 29622 transitions. Word has length 245 [2022-03-20 02:55:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:26,792 INFO L478 AbstractCegarLoop]: Abstraction has 19587 states and 29622 transitions. [2022-03-20 02:55:26,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.107142857142858) internal successors, (339), 27 states have internal predecessors, (339), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:26,792 INFO L276 IsEmpty]: Start isEmpty. Operand 19587 states and 29622 transitions. [2022-03-20 02:55:26,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-20 02:55:26,813 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:26,813 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-20 02:55:26,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 02:55:27,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:55:27,013 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:27,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:27,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1275851272, now seen corresponding path program 1 times [2022-03-20 02:55:27,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:27,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374086572] [2022-03-20 02:55:27,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:27,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:27,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 291 proven. 2 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 02:55:27,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:27,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374086572] [2022-03-20 02:55:27,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374086572] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:55:27,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985077944] [2022-03-20 02:55:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:27,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:55:27,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:55:27,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:55:27,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 02:55:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:28,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 41 conjunts are in the unsatisfiable core [2022-03-20 02:55:28,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:55:28,281 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:55:28,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:55:28,316 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:55:28,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:55:28,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 02:55:28,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:28,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 02:55:28,512 INFO L356 Elim1Store]: treesize reduction 50, result has 58.3 percent of original size [2022-03-20 02:55:28,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 85 [2022-03-20 02:55:28,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:28,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-20 02:55:29,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:29,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-20 02:55:29,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:29,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-20 02:55:29,642 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-20 02:55:29,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 65 [2022-03-20 02:55:29,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2022-03-20 02:55:29,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-03-20 02:55:29,699 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-03-20 02:55:29,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2022-03-20 02:55:29,712 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:55:29,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 02:55:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 244 proven. 108 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-20 02:55:29,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:55:30,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-03-20 02:55:30,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2022-03-20 02:55:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 257 proven. 36 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 02:55:30,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985077944] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 02:55:30,561 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 02:55:30,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 26 [2022-03-20 02:55:30,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671627353] [2022-03-20 02:55:30,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 02:55:30,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-20 02:55:30,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:30,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-20 02:55:30,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2022-03-20 02:55:30,562 INFO L87 Difference]: Start difference. First operand 19587 states and 29622 transitions. Second operand has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:43,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:43,471 INFO L93 Difference]: Finished difference Result 62094 states and 91511 transitions. [2022-03-20 02:55:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-20 02:55:43,472 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-20 02:55:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:43,541 INFO L225 Difference]: With dead ends: 62094 [2022-03-20 02:55:43,541 INFO L226 Difference]: Without dead ends: 42535 [2022-03-20 02:55:43,563 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 502 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 898 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=690, Invalid=2732, Unknown=0, NotChecked=0, Total=3422 [2022-03-20 02:55:43,564 INFO L913 BasicCegarLoop]: 353 mSDtfsCounter, 2112 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 3862 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 3457 SdHoareTripleChecker+Invalid, 5032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 3862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 735 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:43,564 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2112 Valid, 3457 Invalid, 5032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 3862 Invalid, 0 Unknown, 735 Unchecked, 10.9s Time] [2022-03-20 02:55:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42535 states. [2022-03-20 02:55:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42535 to 17871. [2022-03-20 02:55:44,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17871 states, 17866 states have (on average 1.5078920855255793) internal successors, (26940), 17866 states have internal predecessors, (26940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17871 states to 17871 states and 26944 transitions. [2022-03-20 02:55:44,381 INFO L78 Accepts]: Start accepts. Automaton has 17871 states and 26944 transitions. Word has length 245 [2022-03-20 02:55:44,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:44,381 INFO L478 AbstractCegarLoop]: Abstraction has 17871 states and 26944 transitions. [2022-03-20 02:55:44,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:44,381 INFO L276 IsEmpty]: Start isEmpty. Operand 17871 states and 26944 transitions. [2022-03-20 02:55:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-03-20 02:55:44,399 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:44,400 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:55:44,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-20 02:55:44,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:55:44,600 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:44,601 INFO L85 PathProgramCache]: Analyzing trace with hash 83037404, now seen corresponding path program 1 times [2022-03-20 02:55:44,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:44,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082372822] [2022-03-20 02:55:44,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:44,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-20 02:55:44,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:44,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082372822] [2022-03-20 02:55:44,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082372822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:55:44,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:55:44,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:55:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008730284] [2022-03-20 02:55:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:55:44,756 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:55:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:44,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:55:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:55:44,757 INFO L87 Difference]: Start difference. First operand 17871 states and 26944 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:48,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:48,807 INFO L93 Difference]: Finished difference Result 38241 states and 57377 transitions. [2022-03-20 02:55:48,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:55:48,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 249 [2022-03-20 02:55:48,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:48,832 INFO L225 Difference]: With dead ends: 38241 [2022-03-20 02:55:48,832 INFO L226 Difference]: Without dead ends: 20398 [2022-03-20 02:55:48,848 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 02:55:48,848 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 104 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:48,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 468 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:55:48,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20398 states. [2022-03-20 02:55:49,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20398 to 18284. [2022-03-20 02:55:49,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18284 states, 18279 states have (on average 1.5098747196236117) internal successors, (27599), 18279 states have internal predecessors, (27599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:49,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18284 states to 18284 states and 27603 transitions. [2022-03-20 02:55:49,499 INFO L78 Accepts]: Start accepts. Automaton has 18284 states and 27603 transitions. Word has length 249 [2022-03-20 02:55:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:49,499 INFO L478 AbstractCegarLoop]: Abstraction has 18284 states and 27603 transitions. [2022-03-20 02:55:49,499 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:49,500 INFO L276 IsEmpty]: Start isEmpty. Operand 18284 states and 27603 transitions. [2022-03-20 02:55:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-03-20 02:55:49,516 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:49,516 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:55:49,516 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 02:55:49,516 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1220062168, now seen corresponding path program 1 times [2022-03-20 02:55:49,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:49,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410632427] [2022-03-20 02:55:49,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:49,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:49,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-03-20 02:55:49,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:49,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410632427] [2022-03-20 02:55:49,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410632427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:55:49,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:55:49,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:55:49,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189815312] [2022-03-20 02:55:49,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:55:49,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:55:49,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:49,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:55:49,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:55:49,636 INFO L87 Difference]: Start difference. First operand 18284 states and 27603 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:52,344 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 02:55:53,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:53,284 INFO L93 Difference]: Finished difference Result 37387 states and 56314 transitions. [2022-03-20 02:55:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:55:53,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-03-20 02:55:53,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:53,308 INFO L225 Difference]: With dead ends: 37387 [2022-03-20 02:55:53,308 INFO L226 Difference]: Without dead ends: 19131 [2022-03-20 02:55:53,412 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 02:55:53,413 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 40 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:53,413 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 574 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:55:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19131 states. [2022-03-20 02:55:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19131 to 18284. [2022-03-20 02:55:53,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18284 states, 18279 states have (on average 1.5075770009300289) internal successors, (27557), 18279 states have internal predecessors, (27557), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:53,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18284 states to 18284 states and 27561 transitions. [2022-03-20 02:55:53,955 INFO L78 Accepts]: Start accepts. Automaton has 18284 states and 27561 transitions. Word has length 250 [2022-03-20 02:55:53,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:53,956 INFO L478 AbstractCegarLoop]: Abstraction has 18284 states and 27561 transitions. [2022-03-20 02:55:53,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:53,956 INFO L276 IsEmpty]: Start isEmpty. Operand 18284 states and 27561 transitions. [2022-03-20 02:55:53,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 02:55:53,972 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:53,972 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:55:53,972 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 02:55:53,973 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:53,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:53,973 INFO L85 PathProgramCache]: Analyzing trace with hash -468506369, now seen corresponding path program 1 times [2022-03-20 02:55:53,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:53,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813670532] [2022-03-20 02:55:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:53,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-20 02:55:54,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:54,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813670532] [2022-03-20 02:55:54,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813670532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:55:54,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:55:54,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:55:54,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609467378] [2022-03-20 02:55:54,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:55:54,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:55:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:55:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:55:54,210 INFO L87 Difference]: Start difference. First operand 18284 states and 27561 transitions. Second operand has 8 states, 8 states have (on average 19.875) internal successors, (159), 7 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:55,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:57,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:58,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:01,235 INFO L93 Difference]: Finished difference Result 42114 states and 62683 transitions. [2022-03-20 02:56:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:56:01,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.875) internal successors, (159), 7 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-20 02:56:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:01,260 INFO L225 Difference]: With dead ends: 42114 [2022-03-20 02:56:01,260 INFO L226 Difference]: Without dead ends: 23786 [2022-03-20 02:56:01,271 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:56:01,271 INFO L913 BasicCegarLoop]: 295 mSDtfsCounter, 379 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:01,271 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1059 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 02:56:01,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23786 states. [2022-03-20 02:56:01,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23786 to 19796. [2022-03-20 02:56:01,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19796 states, 19791 states have (on average 1.506998130463342) internal successors, (29825), 19791 states have internal predecessors, (29825), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19796 states to 19796 states and 29829 transitions. [2022-03-20 02:56:01,941 INFO L78 Accepts]: Start accepts. Automaton has 19796 states and 29829 transitions. Word has length 257 [2022-03-20 02:56:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:01,941 INFO L478 AbstractCegarLoop]: Abstraction has 19796 states and 29829 transitions. [2022-03-20 02:56:01,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.875) internal successors, (159), 7 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 19796 states and 29829 transitions. [2022-03-20 02:56:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 02:56:01,956 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:01,956 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:01,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 02:56:01,957 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:01,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:01,957 INFO L85 PathProgramCache]: Analyzing trace with hash 238090237, now seen corresponding path program 1 times [2022-03-20 02:56:01,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:01,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55132585] [2022-03-20 02:56:01,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:01,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:02,138 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-20 02:56:02,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:02,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55132585] [2022-03-20 02:56:02,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55132585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:02,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:02,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:56:02,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983162840] [2022-03-20 02:56:02,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:02,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:56:02,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:02,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:56:02,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:56:02,139 INFO L87 Difference]: Start difference. First operand 19796 states and 29829 transitions. Second operand has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:05,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:08,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:08,651 INFO L93 Difference]: Finished difference Result 43120 states and 64233 transitions. [2022-03-20 02:56:08,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:56:08,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-20 02:56:08,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:08,679 INFO L225 Difference]: With dead ends: 43120 [2022-03-20 02:56:08,679 INFO L226 Difference]: Without dead ends: 23352 [2022-03-20 02:56:08,698 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:56:08,699 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 297 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:08,699 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 981 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 993 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 02:56:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23352 states. [2022-03-20 02:56:09,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23352 to 19796. [2022-03-20 02:56:09,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19796 states, 19791 states have (on average 1.5048759537163356) internal successors, (29783), 19791 states have internal predecessors, (29783), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19796 states to 19796 states and 29787 transitions. [2022-03-20 02:56:09,343 INFO L78 Accepts]: Start accepts. Automaton has 19796 states and 29787 transitions. Word has length 257 [2022-03-20 02:56:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:09,344 INFO L478 AbstractCegarLoop]: Abstraction has 19796 states and 29787 transitions. [2022-03-20 02:56:09,344 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 19796 states and 29787 transitions. [2022-03-20 02:56:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 02:56:09,363 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:09,363 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:09,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 02:56:09,363 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash 756752840, now seen corresponding path program 1 times [2022-03-20 02:56:09,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:09,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728182162] [2022-03-20 02:56:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:09,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:09,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 306 proven. 7 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-03-20 02:56:09,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:09,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728182162] [2022-03-20 02:56:09,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728182162] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:56:09,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637063750] [2022-03-20 02:56:09,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:09,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:56:09,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:56:09,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:56:09,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 02:56:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:10,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-20 02:56:10,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:56:10,511 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:56:10,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:56:10,550 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:56:10,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:56:10,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 02:56:10,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 02:56:10,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 02:56:10,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 02:56:10,744 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 02:56:10,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-20 02:56:10,790 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 02:56:10,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-20 02:56:11,406 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:56:11,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2022-03-20 02:56:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 301 proven. 103 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-03-20 02:56:11,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:56:11,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-20 02:56:11,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 02:56:13,637 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_70 Int) (v_arrayElimCell_69 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_69 (store (select |c_#memory_int| v_arrayElimCell_69) (+ 844 v_arrayElimCell_70) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8529))) is different from false [2022-03-20 02:56:13,798 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 02:56:13,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637063750] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:56:13,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:56:13,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 14 [2022-03-20 02:56:13,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926423810] [2022-03-20 02:56:13,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:13,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:13,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:13,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:13,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-03-20 02:56:13,799 INFO L87 Difference]: Start difference. First operand 19796 states and 29787 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:16,258 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_70 Int) (v_arrayElimCell_69 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_69 (store (select |c_#memory_int| v_arrayElimCell_69) (+ 844 v_arrayElimCell_70) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8529))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8529))) is different from false [2022-03-20 02:56:16,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:16,959 INFO L93 Difference]: Finished difference Result 42462 states and 63552 transitions. [2022-03-20 02:56:16,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:16,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-20 02:56:16,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:16,984 INFO L225 Difference]: With dead ends: 42462 [2022-03-20 02:56:16,984 INFO L226 Difference]: Without dead ends: 22694 [2022-03-20 02:56:16,995 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-03-20 02:56:16,995 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 118 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 264 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:16,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 507 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 238 Invalid, 0 Unknown, 264 Unchecked, 0.5s Time] [2022-03-20 02:56:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22694 states. [2022-03-20 02:56:17,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22694 to 20450. [2022-03-20 02:56:17,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20450 states, 20445 states have (on average 1.4898019075568598) internal successors, (30459), 20445 states have internal predecessors, (30459), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20450 states to 20450 states and 30463 transitions. [2022-03-20 02:56:17,601 INFO L78 Accepts]: Start accepts. Automaton has 20450 states and 30463 transitions. Word has length 268 [2022-03-20 02:56:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:17,601 INFO L478 AbstractCegarLoop]: Abstraction has 20450 states and 30463 transitions. [2022-03-20 02:56:17,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 20450 states and 30463 transitions. [2022-03-20 02:56:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 02:56:17,620 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:17,620 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:17,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-20 02:56:17,820 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:56:17,820 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:17,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1892206928, now seen corresponding path program 1 times [2022-03-20 02:56:17,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:17,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992710685] [2022-03-20 02:56:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:17,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:18,295 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2022-03-20 02:56:18,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:18,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992710685] [2022-03-20 02:56:18,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992710685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:18,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:18,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:56:18,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490717658] [2022-03-20 02:56:18,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:18,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:56:18,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:18,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:56:18,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:56:18,296 INFO L87 Difference]: Start difference. First operand 20450 states and 30463 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 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 02:56:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:23,002 INFO L93 Difference]: Finished difference Result 40893 states and 60918 transitions. [2022-03-20 02:56:23,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:56:23,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 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 268 [2022-03-20 02:56:23,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:23,026 INFO L225 Difference]: With dead ends: 40893 [2022-03-20 02:56:23,026 INFO L226 Difference]: Without dead ends: 20450 [2022-03-20 02:56:23,038 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 02:56:23,038 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:23,038 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 02:56:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20450 states. [2022-03-20 02:56:23,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20450 to 20450. [2022-03-20 02:56:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20450 states, 20445 states have (on average 1.4897529958425042) internal successors, (30458), 20445 states have internal predecessors, (30458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20450 states to 20450 states and 30462 transitions. [2022-03-20 02:56:23,730 INFO L78 Accepts]: Start accepts. Automaton has 20450 states and 30462 transitions. Word has length 268 [2022-03-20 02:56:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:23,730 INFO L478 AbstractCegarLoop]: Abstraction has 20450 states and 30462 transitions. [2022-03-20 02:56:23,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 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 02:56:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 20450 states and 30462 transitions. [2022-03-20 02:56:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 02:56:23,748 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:23,748 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:23,748 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 02:56:23,748 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:23,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:23,749 INFO L85 PathProgramCache]: Analyzing trace with hash -922933266, now seen corresponding path program 1 times [2022-03-20 02:56:23,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:23,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125585798] [2022-03-20 02:56:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:23,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 291 proven. 209 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-03-20 02:56:24,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:24,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125585798] [2022-03-20 02:56:24,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125585798] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:56:24,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429113924] [2022-03-20 02:56:24,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:24,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:56:24,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:56:24,572 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:56:24,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 02:56:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:25,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 76 conjunts are in the unsatisfiable core [2022-03-20 02:56:25,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:56:25,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 02:56:25,833 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 02:56:25,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 44 [2022-03-20 02:56:25,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 89 [2022-03-20 02:56:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:25,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 140 [2022-03-20 02:56:25,907 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-03-20 02:56:25,908 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-20 02:56:25,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 02:56:26,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:56:26,109 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_2 input size 79 context size 79 output size 79 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-20 02:56:26,113 INFO L158 Benchmark]: Toolchain (without parser) took 224032.03ms. Allocated memory was 174.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 119.3MB in the beginning and 767.9MB in the end (delta: -648.6MB). Peak memory consumption was 490.1MB. Max. memory is 8.0GB. [2022-03-20 02:56:26,113 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 138.2MB in the beginning and 138.0MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 02:56:26,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.27ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 119.0MB in the beginning and 165.7MB in the end (delta: -46.7MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2022-03-20 02:56:26,113 INFO L158 Benchmark]: Boogie Preprocessor took 72.78ms. Allocated memory is still 209.7MB. Free memory was 165.2MB in the beginning and 157.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-20 02:56:26,113 INFO L158 Benchmark]: RCFGBuilder took 1360.42ms. Allocated memory is still 209.7MB. Free memory was 157.9MB in the beginning and 152.0MB in the end (delta: 5.9MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. [2022-03-20 02:56:26,113 INFO L158 Benchmark]: TraceAbstraction took 222130.81ms. Allocated memory was 209.7MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 151.5MB in the beginning and 767.9MB in the end (delta: -616.4MB). Peak memory consumption was 486.2MB. Max. memory is 8.0GB. [2022-03-20 02:56:26,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 138.2MB in the beginning and 138.0MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 460.27ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 119.0MB in the beginning and 165.7MB in the end (delta: -46.7MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.78ms. Allocated memory is still 209.7MB. Free memory was 165.2MB in the beginning and 157.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1360.42ms. Allocated memory is still 209.7MB. Free memory was 157.9MB in the beginning and 152.0MB in the end (delta: 5.9MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. * TraceAbstraction took 222130.81ms. Allocated memory was 209.7MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 151.5MB in the beginning and 767.9MB in the end (delta: -616.4MB). Peak memory consumption was 486.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_2 input size 79 context size 79 output size 79 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_2 input size 79 context size 79 output size 79: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-20 02:56:26,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...