/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.15.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 03:04:01,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:04:01,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:04:01,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 03:04:01,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 03:04:01,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 03:04:01,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 03:04:01,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 03:04:01,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 03:04:01,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 03:04:01,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 03:04:01,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 03:04:01,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 03:04:01,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 03:04:01,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 03:04:01,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 03:04:01,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 03:04:01,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 03:04:01,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 03:04:01,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 03:04:01,178 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 03:04:01,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 03:04:01,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 03:04:01,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 03:04:01,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 03:04:01,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 03:04:01,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 03:04:01,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 03:04:01,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 03:04:01,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 03:04:01,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 03:04:01,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 03:04:01,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 03:04:01,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 03:04:01,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 03:04:01,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 03:04:01,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 03:04:01,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 03:04:01,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 03:04:01,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:04:01,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:04:01,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:04:01,195 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 03:04:01,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:04:01,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:04:01,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 03:04:01,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 03:04:01,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 03:04:01,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 03:04:01,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 03:04:01,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 03:04:01,222 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 03:04:01,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:04:01,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:04:01,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:04:01,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:04:01,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:04:01,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:04:01,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:04:01,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:04:01,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:04:01,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 03:04:01,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 03:04:01,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:04:01,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 03:04:01,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 03:04:01,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 03:04:01,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 03:04:01,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:04:01,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:04:01,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:04:01,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:04:01,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:04:01,426 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:04:01,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-20 03:04:01,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79309baac/5baa44e0585549bca960aa5c0c7bcf02/FLAG5ca8ff0e9 [2022-03-20 03:04:01,897 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:04:01,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-20 03:04:01,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79309baac/5baa44e0585549bca960aa5c0c7bcf02/FLAG5ca8ff0e9 [2022-03-20 03:04:02,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79309baac/5baa44e0585549bca960aa5c0c7bcf02 [2022-03-20 03:04:02,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:04:02,253 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 03:04:02,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:04:02,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:04:02,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:04:02,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e0cf6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02, skipping insertion in model container [2022-03-20 03:04:02,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:04:02,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:04:02,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c[75550,75563] [2022-03-20 03:04:02,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:04:02,618 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:04:02,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c[75550,75563] [2022-03-20 03:04:02,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:04:02,719 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:04:02,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02 WrapperNode [2022-03-20 03:04:02,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:04:02,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:04:02,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:04:02,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:04:02,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:04:02,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:04:02,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:04:02,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:04:02,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (1/1) ... [2022-03-20 03:04:02,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:04:02,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:04:02,893 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 03:04:02,912 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 03:04:02,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:04:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:04:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:04:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 03:04:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 03:04:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:04:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 03:04:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 03:04:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 03:04:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 03:04:02,932 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:04:02,932 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 03:04:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 03:04:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 03:04:02,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 03:04:02,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:04:03,134 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:04:03,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:04:03,939 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 03:04:04,419 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 03:04:04,420 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 03:04:04,440 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:04:04,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:04:04,450 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 03:04:04,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:04:04 BoogieIcfgContainer [2022-03-20 03:04:04,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:04:04,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:04:04,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:04:04,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:04:04,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:04:02" (1/3) ... [2022-03-20 03:04:04,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b6b196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:04:04, skipping insertion in model container [2022-03-20 03:04:04,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:02" (2/3) ... [2022-03-20 03:04:04,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b6b196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:04:04, skipping insertion in model container [2022-03-20 03:04:04,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:04:04" (3/3) ... [2022-03-20 03:04:04,461 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-1.c [2022-03-20 03:04:04,465 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:04:04,466 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 03:04:04,523 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:04:04,530 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 03:04:04,530 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 03:04:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 03:04:04,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 03:04:04,555 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:04,556 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:04,556 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:04,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:04,561 INFO L85 PathProgramCache]: Analyzing trace with hash 80900235, now seen corresponding path program 1 times [2022-03-20 03:04:04,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:04,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268816157] [2022-03-20 03:04:04,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:04,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:05,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:05,091 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 03:04:05,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:05,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268816157] [2022-03-20 03:04:05,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268816157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:05,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:05,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:05,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321897378] [2022-03-20 03:04:05,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:05,104 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:05,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:05,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:05,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:05,139 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:07,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:08,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:08,413 INFO L93 Difference]: Finished difference Result 340 states and 572 transitions. [2022-03-20 03:04:08,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:08,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 03:04:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:08,422 INFO L225 Difference]: With dead ends: 340 [2022-03-20 03:04:08,422 INFO L226 Difference]: Without dead ends: 173 [2022-03-20 03:04:08,425 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:08,427 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 34 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:08,428 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 625 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 03:04:08,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-20 03:04:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 156. [2022-03-20 03:04:08,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 151 states have (on average 1.5629139072847682) internal successors, (236), 151 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 240 transitions. [2022-03-20 03:04:08,465 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 240 transitions. Word has length 50 [2022-03-20 03:04:08,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:08,466 INFO L478 AbstractCegarLoop]: Abstraction has 156 states and 240 transitions. [2022-03-20 03:04:08,466 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 240 transitions. [2022-03-20 03:04:08,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 03:04:08,469 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:08,469 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:08,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:04:08,469 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:08,470 INFO L85 PathProgramCache]: Analyzing trace with hash -450854301, now seen corresponding path program 1 times [2022-03-20 03:04:08,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:08,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394861500] [2022-03-20 03:04:08,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:08,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:08,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:08,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:08,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394861500] [2022-03-20 03:04:08,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394861500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:08,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:08,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:08,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727891654] [2022-03-20 03:04:08,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:08,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:08,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:08,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:08,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:08,672 INFO L87 Difference]: Start difference. First operand 156 states and 240 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 03:04:10,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:12,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:13,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:13,573 INFO L93 Difference]: Finished difference Result 303 states and 463 transitions. [2022-03-20 03:04:13,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:13,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 03:04:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:13,575 INFO L225 Difference]: With dead ends: 303 [2022-03-20 03:04:13,575 INFO L226 Difference]: Without dead ends: 173 [2022-03-20 03:04:13,576 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:13,577 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:13,577 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 03:04:13,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-20 03:04:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 156. [2022-03-20 03:04:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 151 states have (on average 1.5562913907284768) internal successors, (235), 151 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 239 transitions. [2022-03-20 03:04:13,597 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 239 transitions. Word has length 63 [2022-03-20 03:04:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:13,597 INFO L478 AbstractCegarLoop]: Abstraction has 156 states and 239 transitions. [2022-03-20 03:04:13,597 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 03:04:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 239 transitions. [2022-03-20 03:04:13,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 03:04:13,599 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:13,599 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:13,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 03:04:13,600 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:13,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:13,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1137075757, now seen corresponding path program 1 times [2022-03-20 03:04:13,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:13,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947512979] [2022-03-20 03:04:13,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:13,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:13,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:13,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947512979] [2022-03-20 03:04:13,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947512979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:13,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:13,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:13,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955777497] [2022-03-20 03:04:13,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:13,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:13,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:13,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:13,733 INFO L87 Difference]: Start difference. First operand 156 states and 239 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 03:04:16,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:17,740 WARN L534 Checker$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 03:04:19,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:20,236 INFO L93 Difference]: Finished difference Result 302 states and 461 transitions. [2022-03-20 03:04:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:20,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 03:04:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:20,238 INFO L225 Difference]: With dead ends: 302 [2022-03-20 03:04:20,238 INFO L226 Difference]: Without dead ends: 172 [2022-03-20 03:04:20,239 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:20,240 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:20,240 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 366 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 03:04:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-03-20 03:04:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 156. [2022-03-20 03:04:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 151 states have (on average 1.5496688741721854) internal successors, (234), 151 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:20,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 238 transitions. [2022-03-20 03:04:20,248 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 238 transitions. Word has length 64 [2022-03-20 03:04:20,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:20,248 INFO L478 AbstractCegarLoop]: Abstraction has 156 states and 238 transitions. [2022-03-20 03:04:20,248 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 03:04:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 238 transitions. [2022-03-20 03:04:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 03:04:20,249 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:20,250 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:20,250 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 03:04:20,250 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:20,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:20,250 INFO L85 PathProgramCache]: Analyzing trace with hash 749827687, now seen corresponding path program 1 times [2022-03-20 03:04:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:20,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510693925] [2022-03-20 03:04:20,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:20,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:20,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:20,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:20,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:20,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510693925] [2022-03-20 03:04:20,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510693925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:20,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:20,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:20,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301144060] [2022-03-20 03:04:20,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:20,425 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:20,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:20,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:20,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:20,426 INFO L87 Difference]: Start difference. First operand 156 states and 238 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 03:04:23,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:24,692 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 03:04:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:25,208 INFO L93 Difference]: Finished difference Result 405 states and 626 transitions. [2022-03-20 03:04:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:25,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 03:04:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:25,210 INFO L225 Difference]: With dead ends: 405 [2022-03-20 03:04:25,210 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 03:04:25,211 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:25,211 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:25,212 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 03:04:25,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 03:04:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 168. [2022-03-20 03:04:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.539877300613497) internal successors, (251), 163 states have internal predecessors, (251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 255 transitions. [2022-03-20 03:04:25,227 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 255 transitions. Word has length 64 [2022-03-20 03:04:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:25,228 INFO L478 AbstractCegarLoop]: Abstraction has 168 states and 255 transitions. [2022-03-20 03:04:25,228 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 03:04:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 255 transitions. [2022-03-20 03:04:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 03:04:25,229 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:25,229 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:25,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 03:04:25,229 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:25,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1864834526, now seen corresponding path program 1 times [2022-03-20 03:04:25,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:25,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522819499] [2022-03-20 03:04:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:25,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:25,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:25,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522819499] [2022-03-20 03:04:25,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522819499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:25,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:25,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:25,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532798316] [2022-03-20 03:04:25,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:25,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:25,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:25,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:25,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:25,366 INFO L87 Difference]: Start difference. First operand 168 states and 255 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 03:04:29,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:30,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:30,454 INFO L93 Difference]: Finished difference Result 417 states and 642 transitions. [2022-03-20 03:04:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:30,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 03:04:30,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:30,456 INFO L225 Difference]: With dead ends: 417 [2022-03-20 03:04:30,456 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 03:04:30,457 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:30,457 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 145 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:30,458 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 03:04:30,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 03:04:30,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 173. [2022-03-20 03:04:30,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 168 states have (on average 1.5416666666666667) internal successors, (259), 168 states have internal predecessors, (259), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:30,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 263 transitions. [2022-03-20 03:04:30,464 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 263 transitions. Word has length 64 [2022-03-20 03:04:30,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:30,465 INFO L478 AbstractCegarLoop]: Abstraction has 173 states and 263 transitions. [2022-03-20 03:04:30,465 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 03:04:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 263 transitions. [2022-03-20 03:04:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 03:04:30,466 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:30,466 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:30,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 03:04:30,466 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:30,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:30,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1932394527, now seen corresponding path program 1 times [2022-03-20 03:04:30,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:30,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889345909] [2022-03-20 03:04:30,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:30,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:30,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:30,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889345909] [2022-03-20 03:04:30,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889345909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:30,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:30,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:30,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352593248] [2022-03-20 03:04:30,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:30,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:30,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:30,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:30,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:30,588 INFO L87 Difference]: Start difference. First operand 173 states and 263 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 03:04:32,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:34,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:35,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:35,567 INFO L93 Difference]: Finished difference Result 333 states and 509 transitions. [2022-03-20 03:04:35,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:35,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 03:04:35,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:35,569 INFO L225 Difference]: With dead ends: 333 [2022-03-20 03:04:35,569 INFO L226 Difference]: Without dead ends: 186 [2022-03-20 03:04:35,570 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:35,571 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 18 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:35,571 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 03:04:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-03-20 03:04:35,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 173. [2022-03-20 03:04:35,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 168 states have (on average 1.5357142857142858) internal successors, (258), 168 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:35,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 262 transitions. [2022-03-20 03:04:35,580 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 262 transitions. Word has length 64 [2022-03-20 03:04:35,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:35,580 INFO L478 AbstractCegarLoop]: Abstraction has 173 states and 262 transitions. [2022-03-20 03:04:35,580 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 03:04:35,581 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 262 transitions. [2022-03-20 03:04:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:04:35,582 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:35,582 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:35,582 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 03:04:35,582 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:35,583 INFO L85 PathProgramCache]: Analyzing trace with hash -165707508, now seen corresponding path program 1 times [2022-03-20 03:04:35,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:35,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783458342] [2022-03-20 03:04:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:35,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:35,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:35,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783458342] [2022-03-20 03:04:35,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783458342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:35,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:35,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:35,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759706130] [2022-03-20 03:04:35,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:35,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:35,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:35,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:35,716 INFO L87 Difference]: Start difference. First operand 173 states and 262 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 03:04:37,726 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 03:04:38,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:38,117 INFO L93 Difference]: Finished difference Result 333 states and 508 transitions. [2022-03-20 03:04:38,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:38,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 03:04:38,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:38,119 INFO L225 Difference]: With dead ends: 333 [2022-03-20 03:04:38,119 INFO L226 Difference]: Without dead ends: 186 [2022-03-20 03:04:38,120 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:38,120 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:38,121 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:04:38,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-03-20 03:04:38,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 173. [2022-03-20 03:04:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 168 states have (on average 1.5297619047619047) internal successors, (257), 168 states have internal predecessors, (257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 261 transitions. [2022-03-20 03:04:38,127 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 261 transitions. Word has length 65 [2022-03-20 03:04:38,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:38,127 INFO L478 AbstractCegarLoop]: Abstraction has 173 states and 261 transitions. [2022-03-20 03:04:38,127 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 03:04:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 261 transitions. [2022-03-20 03:04:38,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 03:04:38,128 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:38,129 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:38,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 03:04:38,129 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:38,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:38,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1512732084, now seen corresponding path program 1 times [2022-03-20 03:04:38,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:38,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301319057] [2022-03-20 03:04:38,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:38,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:38,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:38,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:38,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301319057] [2022-03-20 03:04:38,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301319057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:38,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:38,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296236901] [2022-03-20 03:04:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:38,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:38,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:38,232 INFO L87 Difference]: Start difference. First operand 173 states and 261 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 03:04:39,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:41,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:42,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:42,176 INFO L93 Difference]: Finished difference Result 333 states and 507 transitions. [2022-03-20 03:04:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:42,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 03:04:42,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:42,178 INFO L225 Difference]: With dead ends: 333 [2022-03-20 03:04:42,178 INFO L226 Difference]: Without dead ends: 186 [2022-03-20 03:04:42,179 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:42,179 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 20 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:42,179 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 03:04:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-03-20 03:04:42,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 173. [2022-03-20 03:04:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 168 states have (on average 1.5238095238095237) internal successors, (256), 168 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:42,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 260 transitions. [2022-03-20 03:04:42,184 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 260 transitions. Word has length 66 [2022-03-20 03:04:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:42,184 INFO L478 AbstractCegarLoop]: Abstraction has 173 states and 260 transitions. [2022-03-20 03:04:42,184 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 03:04:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 260 transitions. [2022-03-20 03:04:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 03:04:42,186 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:42,186 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:42,186 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 03:04:42,186 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash 943941713, now seen corresponding path program 1 times [2022-03-20 03:04:42,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:42,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289877929] [2022-03-20 03:04:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:42,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:42,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:42,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:42,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289877929] [2022-03-20 03:04:42,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289877929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:42,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:42,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:42,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428868559] [2022-03-20 03:04:42,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:42,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:42,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:42,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:42,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:42,295 INFO L87 Difference]: Start difference. First operand 173 states and 260 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 03:04:43,958 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 03:04:46,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:47,444 INFO L93 Difference]: Finished difference Result 422 states and 646 transitions. [2022-03-20 03:04:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:47,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 03:04:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:47,446 INFO L225 Difference]: With dead ends: 422 [2022-03-20 03:04:47,446 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 03:04:47,447 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:47,447 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 146 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:47,447 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 03:04:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 03:04:47,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 173. [2022-03-20 03:04:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 168 states have (on average 1.5119047619047619) internal successors, (254), 168 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 258 transitions. [2022-03-20 03:04:47,452 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 258 transitions. Word has length 67 [2022-03-20 03:04:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:47,453 INFO L478 AbstractCegarLoop]: Abstraction has 173 states and 258 transitions. [2022-03-20 03:04:47,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 258 transitions. [2022-03-20 03:04:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 03:04:47,453 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:47,454 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:47,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 03:04:47,454 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash -116628358, now seen corresponding path program 1 times [2022-03-20 03:04:47,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:47,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397318629] [2022-03-20 03:04:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:47,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:47,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:47,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397318629] [2022-03-20 03:04:47,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397318629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:47,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:47,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832572326] [2022-03-20 03:04:47,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:47,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:47,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:47,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:47,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:47,570 INFO L87 Difference]: Start difference. First operand 173 states and 258 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 03:04:48,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:50,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:50,999 INFO L93 Difference]: Finished difference Result 440 states and 670 transitions. [2022-03-20 03:04:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:51,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 03:04:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:51,001 INFO L225 Difference]: With dead ends: 440 [2022-03-20 03:04:51,001 INFO L226 Difference]: Without dead ends: 293 [2022-03-20 03:04:51,001 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:51,002 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 122 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:51,002 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 03:04:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-03-20 03:04:51,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 213. [2022-03-20 03:04:51,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5576923076923077) internal successors, (324), 208 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:51,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 328 transitions. [2022-03-20 03:04:51,008 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 328 transitions. Word has length 67 [2022-03-20 03:04:51,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:51,008 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 328 transitions. [2022-03-20 03:04:51,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 328 transitions. [2022-03-20 03:04:51,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 03:04:51,009 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:51,009 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:51,010 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 03:04:51,010 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:51,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1271474916, now seen corresponding path program 1 times [2022-03-20 03:04:51,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:51,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850851086] [2022-03-20 03:04:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:51,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:51,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:51,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850851086] [2022-03-20 03:04:51,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850851086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:51,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:51,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:51,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415686600] [2022-03-20 03:04:51,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:51,177 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:51,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:51,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:51,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:51,178 INFO L87 Difference]: Start difference. First operand 213 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:54,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:55,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:55,233 INFO L93 Difference]: Finished difference Result 443 states and 689 transitions. [2022-03-20 03:04:55,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:55,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 03:04:55,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:55,234 INFO L225 Difference]: With dead ends: 443 [2022-03-20 03:04:55,235 INFO L226 Difference]: Without dead ends: 256 [2022-03-20 03:04:55,235 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:55,236 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:55,236 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 521 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 03:04:55,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-20 03:04:55,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 235. [2022-03-20 03:04:55,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.5608695652173914) internal successors, (359), 230 states have internal predecessors, (359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 363 transitions. [2022-03-20 03:04:55,241 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 363 transitions. Word has length 68 [2022-03-20 03:04:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:55,241 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 363 transitions. [2022-03-20 03:04:55,242 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 363 transitions. [2022-03-20 03:04:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 03:04:55,242 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:55,242 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:55,243 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 03:04:55,243 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:55,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:55,243 INFO L85 PathProgramCache]: Analyzing trace with hash 282286594, now seen corresponding path program 1 times [2022-03-20 03:04:55,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:55,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788689188] [2022-03-20 03:04:55,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:55,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:55,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:55,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788689188] [2022-03-20 03:04:55,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788689188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:55,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:55,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:55,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975058105] [2022-03-20 03:04:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:55,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:55,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:55,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:55,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:55,337 INFO L87 Difference]: Start difference. First operand 235 states and 363 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 03:04:59,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:59,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:59,787 INFO L93 Difference]: Finished difference Result 463 states and 721 transitions. [2022-03-20 03:04:59,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:59,787 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 81 [2022-03-20 03:04:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:59,789 INFO L225 Difference]: With dead ends: 463 [2022-03-20 03:04:59,789 INFO L226 Difference]: Without dead ends: 254 [2022-03-20 03:04:59,790 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:59,790 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:59,791 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 525 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 03:04:59,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-03-20 03:04:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 235. [2022-03-20 03:04:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.5565217391304347) internal successors, (358), 230 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 362 transitions. [2022-03-20 03:04:59,798 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 362 transitions. Word has length 81 [2022-03-20 03:04:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:59,799 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 362 transitions. [2022-03-20 03:04:59,799 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 03:04:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 362 transitions. [2022-03-20 03:04:59,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 03:04:59,800 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:59,800 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:59,800 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 03:04:59,800 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:59,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:59,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1444944660, now seen corresponding path program 1 times [2022-03-20 03:04:59,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:59,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793999804] [2022-03-20 03:04:59,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:59,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:59,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 03:04:59,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:59,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793999804] [2022-03-20 03:04:59,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793999804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:59,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:59,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:59,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036209947] [2022-03-20 03:04:59,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:59,901 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:59,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:59,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:59,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:59,902 INFO L87 Difference]: Start difference. First operand 235 states and 362 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:02,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:04,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:04,162 INFO L93 Difference]: Finished difference Result 473 states and 735 transitions. [2022-03-20 03:05:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:04,162 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 82 [2022-03-20 03:05:04,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:04,163 INFO L225 Difference]: With dead ends: 473 [2022-03-20 03:05:04,163 INFO L226 Difference]: Without dead ends: 264 [2022-03-20 03:05:04,164 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:04,164 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 20 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:04,165 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 588 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 03:05:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-20 03:05:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 251. [2022-03-20 03:05:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5528455284552845) internal successors, (382), 246 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 386 transitions. [2022-03-20 03:05:04,169 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 386 transitions. Word has length 82 [2022-03-20 03:05:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:04,170 INFO L478 AbstractCegarLoop]: Abstraction has 251 states and 386 transitions. [2022-03-20 03:05:04,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 386 transitions. [2022-03-20 03:05:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 03:05:04,170 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:04,171 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:04,171 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 03:05:04,172 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:04,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2109242952, now seen corresponding path program 1 times [2022-03-20 03:05:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:04,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627492646] [2022-03-20 03:05:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:04,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:04,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:04,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:04,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627492646] [2022-03-20 03:05:04,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627492646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:04,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:04,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:04,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879529924] [2022-03-20 03:05:04,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:04,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:04,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:04,258 INFO L87 Difference]: Start difference. First operand 251 states and 386 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:05,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:07,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:09,013 INFO L93 Difference]: Finished difference Result 577 states and 898 transitions. [2022-03-20 03:05:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:09,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 03:05:09,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:09,015 INFO L225 Difference]: With dead ends: 577 [2022-03-20 03:05:09,015 INFO L226 Difference]: Without dead ends: 352 [2022-03-20 03:05:09,016 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:09,016 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:09,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 03:05:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-03-20 03:05:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 252. [2022-03-20 03:05:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.54251012145749) internal successors, (381), 247 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 385 transitions. [2022-03-20 03:05:09,026 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 385 transitions. Word has length 82 [2022-03-20 03:05:09,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:09,026 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 385 transitions. [2022-03-20 03:05:09,027 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 385 transitions. [2022-03-20 03:05:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 03:05:09,028 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:09,028 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:09,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 03:05:09,028 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:09,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1130143569, now seen corresponding path program 1 times [2022-03-20 03:05:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:09,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645182361] [2022-03-20 03:05:09,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:09,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:09,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 03:05:09,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:09,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645182361] [2022-03-20 03:05:09,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645182361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:09,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:09,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 03:05:09,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940397737] [2022-03-20 03:05:09,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:09,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 03:05:09,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:09,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 03:05:09,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:09,165 INFO L87 Difference]: Start difference. First operand 252 states and 385 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:11,691 INFO L93 Difference]: Finished difference Result 487 states and 752 transitions. [2022-03-20 03:05:11,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 03:05:11,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 03:05:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:11,695 INFO L225 Difference]: With dead ends: 487 [2022-03-20 03:05:11,695 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 03:05:11,695 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:05:11,696 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:11,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:05:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 03:05:11,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-03-20 03:05:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.53125) internal successors, (392), 256 states have internal predecessors, (392), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 396 transitions. [2022-03-20 03:05:11,701 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 396 transitions. Word has length 83 [2022-03-20 03:05:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:11,701 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 396 transitions. [2022-03-20 03:05:11,701 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 396 transitions. [2022-03-20 03:05:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 03:05:11,702 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:11,702 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:11,702 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 03:05:11,702 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:11,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1885868468, now seen corresponding path program 1 times [2022-03-20 03:05:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:11,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013888881] [2022-03-20 03:05:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:11,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:11,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013888881] [2022-03-20 03:05:11,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013888881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:11,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:11,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646292817] [2022-03-20 03:05:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:11,834 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:11,835 INFO L87 Difference]: Start difference. First operand 261 states and 396 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:14,419 INFO L93 Difference]: Finished difference Result 523 states and 797 transitions. [2022-03-20 03:05:14,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:14,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 03:05:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:14,421 INFO L225 Difference]: With dead ends: 523 [2022-03-20 03:05:14,421 INFO L226 Difference]: Without dead ends: 288 [2022-03-20 03:05:14,421 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:14,422 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 37 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:14,422 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 527 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:05:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-03-20 03:05:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 261. [2022-03-20 03:05:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.52734375) internal successors, (391), 256 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 395 transitions. [2022-03-20 03:05:14,427 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 395 transitions. Word has length 84 [2022-03-20 03:05:14,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:14,428 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 395 transitions. [2022-03-20 03:05:14,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:14,428 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 395 transitions. [2022-03-20 03:05:14,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 03:05:14,428 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:14,428 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:14,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 03:05:14,429 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:14,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1140288054, now seen corresponding path program 1 times [2022-03-20 03:05:14,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:14,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688983993] [2022-03-20 03:05:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:14,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:14,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:14,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688983993] [2022-03-20 03:05:14,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688983993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:14,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:14,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:14,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157888049] [2022-03-20 03:05:14,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:14,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:14,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:14,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:14,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:14,543 INFO L87 Difference]: Start difference. First operand 261 states and 395 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 03:05:16,552 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 03:05:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:17,004 INFO L93 Difference]: Finished difference Result 605 states and 925 transitions. [2022-03-20 03:05:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:17,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 03:05:17,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:17,005 INFO L225 Difference]: With dead ends: 605 [2022-03-20 03:05:17,005 INFO L226 Difference]: Without dead ends: 370 [2022-03-20 03:05:17,006 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:17,006 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 146 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:17,007 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 364 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:05:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-03-20 03:05:17,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 261. [2022-03-20 03:05:17,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.51171875) internal successors, (387), 256 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:17,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 391 transitions. [2022-03-20 03:05:17,012 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 391 transitions. Word has length 85 [2022-03-20 03:05:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:17,012 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 391 transitions. [2022-03-20 03:05:17,012 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 03:05:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 391 transitions. [2022-03-20 03:05:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 03:05:17,013 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:17,013 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:17,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 03:05:17,013 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:17,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:17,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1846566073, now seen corresponding path program 1 times [2022-03-20 03:05:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:17,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675358077] [2022-03-20 03:05:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:17,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:17,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:17,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675358077] [2022-03-20 03:05:17,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675358077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:17,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:17,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:17,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453269465] [2022-03-20 03:05:17,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:17,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:17,101 INFO L87 Difference]: Start difference. First operand 261 states and 391 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:18,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:20,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:22,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:22,945 INFO L93 Difference]: Finished difference Result 605 states and 917 transitions. [2022-03-20 03:05:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:22,945 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 90 [2022-03-20 03:05:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:22,946 INFO L225 Difference]: With dead ends: 605 [2022-03-20 03:05:22,947 INFO L226 Difference]: Without dead ends: 370 [2022-03-20 03:05:22,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:22,947 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 119 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:22,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 386 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 03:05:22,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-03-20 03:05:22,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 283. [2022-03-20 03:05:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5467625899280575) internal successors, (430), 278 states have internal predecessors, (430), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 434 transitions. [2022-03-20 03:05:22,955 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 434 transitions. Word has length 90 [2022-03-20 03:05:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:22,955 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 434 transitions. [2022-03-20 03:05:22,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 434 transitions. [2022-03-20 03:05:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 03:05:22,956 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:22,956 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:22,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 03:05:22,956 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:22,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:22,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1885087564, now seen corresponding path program 1 times [2022-03-20 03:05:22,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:22,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291710682] [2022-03-20 03:05:22,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:22,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:23,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:23,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291710682] [2022-03-20 03:05:23,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291710682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:23,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:23,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:23,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798294008] [2022-03-20 03:05:23,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:23,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:23,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:23,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:23,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:23,075 INFO L87 Difference]: Start difference. First operand 283 states and 434 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:24,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:27,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:28,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:28,051 INFO L93 Difference]: Finished difference Result 646 states and 995 transitions. [2022-03-20 03:05:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:28,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 03:05:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:28,053 INFO L225 Difference]: With dead ends: 646 [2022-03-20 03:05:28,053 INFO L226 Difference]: Without dead ends: 389 [2022-03-20 03:05:28,054 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:28,054 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 89 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:28,054 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 525 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 03:05:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-03-20 03:05:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 317. [2022-03-20 03:05:28,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.5544871794871795) internal successors, (485), 312 states have internal predecessors, (485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 489 transitions. [2022-03-20 03:05:28,063 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 489 transitions. Word has length 118 [2022-03-20 03:05:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:28,064 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 489 transitions. [2022-03-20 03:05:28,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 489 transitions. [2022-03-20 03:05:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 03:05:28,065 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:28,065 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:28,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 03:05:28,065 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:28,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:28,065 INFO L85 PathProgramCache]: Analyzing trace with hash -501421942, now seen corresponding path program 1 times [2022-03-20 03:05:28,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:28,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829039596] [2022-03-20 03:05:28,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:28,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:28,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 03:05:28,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:28,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829039596] [2022-03-20 03:05:28,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829039596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:28,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:28,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:28,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237716882] [2022-03-20 03:05:28,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:28,166 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:28,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:28,167 INFO L87 Difference]: Start difference. First operand 317 states and 489 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 03:05:31,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:31,257 INFO L93 Difference]: Finished difference Result 665 states and 1028 transitions. [2022-03-20 03:05:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:31,258 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 118 [2022-03-20 03:05:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:31,259 INFO L225 Difference]: With dead ends: 665 [2022-03-20 03:05:31,259 INFO L226 Difference]: Without dead ends: 374 [2022-03-20 03:05:31,260 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:31,260 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 35 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:31,260 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 619 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:05:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-20 03:05:31,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 341. [2022-03-20 03:05:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5535714285714286) internal successors, (522), 336 states have internal predecessors, (522), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:31,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 526 transitions. [2022-03-20 03:05:31,266 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 526 transitions. Word has length 118 [2022-03-20 03:05:31,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:31,267 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 526 transitions. [2022-03-20 03:05:31,267 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 03:05:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 526 transitions. [2022-03-20 03:05:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 03:05:31,286 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:31,286 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:31,286 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 03:05:31,286 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:31,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1112383005, now seen corresponding path program 1 times [2022-03-20 03:05:31,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:31,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005364213] [2022-03-20 03:05:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:31,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 03:05:31,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:31,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005364213] [2022-03-20 03:05:31,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005364213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:31,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:31,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:31,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207728376] [2022-03-20 03:05:31,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:31,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:31,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:31,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:31,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:31,386 INFO L87 Difference]: Start difference. First operand 341 states and 526 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:32,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:34,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:36,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:36,979 INFO L93 Difference]: Finished difference Result 663 states and 1032 transitions. [2022-03-20 03:05:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:36,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 03:05:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:36,981 INFO L225 Difference]: With dead ends: 663 [2022-03-20 03:05:36,981 INFO L226 Difference]: Without dead ends: 348 [2022-03-20 03:05:36,982 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:36,982 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 30 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:36,982 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 543 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 03:05:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-20 03:05:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-03-20 03:05:36,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5505952380952381) internal successors, (521), 336 states have internal predecessors, (521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 525 transitions. [2022-03-20 03:05:36,988 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 525 transitions. Word has length 123 [2022-03-20 03:05:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:36,988 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 525 transitions. [2022-03-20 03:05:36,989 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 525 transitions. [2022-03-20 03:05:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 03:05:36,989 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:36,990 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:36,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 03:05:36,990 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:36,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash -336492130, now seen corresponding path program 1 times [2022-03-20 03:05:36,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:36,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051470009] [2022-03-20 03:05:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:36,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:37,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:37,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051470009] [2022-03-20 03:05:37,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051470009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:37,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:37,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:37,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180706319] [2022-03-20 03:05:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:37,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:37,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:37,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:37,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:37,087 INFO L87 Difference]: Start difference. First operand 341 states and 525 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:38,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:40,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:41,902 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 03:05:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:42,365 INFO L93 Difference]: Finished difference Result 783 states and 1209 transitions. [2022-03-20 03:05:42,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:42,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 03:05:42,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:42,368 INFO L225 Difference]: With dead ends: 783 [2022-03-20 03:05:42,368 INFO L226 Difference]: Without dead ends: 468 [2022-03-20 03:05:42,369 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:42,370 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 121 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:42,370 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 362 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 03:05:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-20 03:05:42,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 378. [2022-03-20 03:05:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5630026809651474) internal successors, (583), 373 states have internal predecessors, (583), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:42,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 587 transitions. [2022-03-20 03:05:42,378 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 587 transitions. Word has length 123 [2022-03-20 03:05:42,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:42,379 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 587 transitions. [2022-03-20 03:05:42,379 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 587 transitions. [2022-03-20 03:05:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 03:05:42,380 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:42,380 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:42,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 03:05:42,380 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:42,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1416201914, now seen corresponding path program 1 times [2022-03-20 03:05:42,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:42,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995179595] [2022-03-20 03:05:42,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:42,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:42,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:42,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995179595] [2022-03-20 03:05:42,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995179595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:42,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:42,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:42,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040218803] [2022-03-20 03:05:42,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:42,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:42,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:42,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:42,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:42,526 INFO L87 Difference]: Start difference. First operand 378 states and 587 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:43,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:46,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:46,140 INFO L93 Difference]: Finished difference Result 817 states and 1265 transitions. [2022-03-20 03:05:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:46,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 03:05:46,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:46,142 INFO L225 Difference]: With dead ends: 817 [2022-03-20 03:05:46,143 INFO L226 Difference]: Without dead ends: 465 [2022-03-20 03:05:46,143 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:46,144 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 120 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:46,147 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 386 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 03:05:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-03-20 03:05:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 378. [2022-03-20 03:05:46,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5576407506702412) internal successors, (581), 373 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:46,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 585 transitions. [2022-03-20 03:05:46,154 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 585 transitions. Word has length 124 [2022-03-20 03:05:46,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:46,155 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 585 transitions. [2022-03-20 03:05:46,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 585 transitions. [2022-03-20 03:05:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 03:05:46,156 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:46,156 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:46,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 03:05:46,156 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:46,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:46,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1326823960, now seen corresponding path program 1 times [2022-03-20 03:05:46,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:46,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219170704] [2022-03-20 03:05:46,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:46,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:46,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:46,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219170704] [2022-03-20 03:05:46,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219170704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:46,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:46,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:46,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870925141] [2022-03-20 03:05:46,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:46,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:46,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:46,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:46,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:46,268 INFO L87 Difference]: Start difference. First operand 378 states and 585 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 03:05:48,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:50,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:51,018 INFO L93 Difference]: Finished difference Result 815 states and 1259 transitions. [2022-03-20 03:05:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:51,019 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 131 [2022-03-20 03:05:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:51,020 INFO L225 Difference]: With dead ends: 815 [2022-03-20 03:05:51,020 INFO L226 Difference]: Without dead ends: 463 [2022-03-20 03:05:51,021 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:51,021 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:51,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 366 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 03:05:51,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-03-20 03:05:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 378. [2022-03-20 03:05:51,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5442359249329758) internal successors, (576), 373 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 580 transitions. [2022-03-20 03:05:51,028 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 580 transitions. Word has length 131 [2022-03-20 03:05:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:51,028 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 580 transitions. [2022-03-20 03:05:51,029 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 03:05:51,029 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 580 transitions. [2022-03-20 03:05:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 03:05:51,029 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:51,030 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, 1] [2022-03-20 03:05:51,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 03:05:51,030 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1840054613, now seen corresponding path program 1 times [2022-03-20 03:05:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:51,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200955214] [2022-03-20 03:05:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:51,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:51,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:51,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200955214] [2022-03-20 03:05:51,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200955214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:51,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:51,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:51,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513937123] [2022-03-20 03:05:51,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:51,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:51,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:51,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:51,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:51,177 INFO L87 Difference]: Start difference. First operand 378 states and 580 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:52,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:55,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:56,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:56,452 INFO L93 Difference]: Finished difference Result 789 states and 1210 transitions. [2022-03-20 03:05:56,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:56,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 03:05:56,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:56,454 INFO L225 Difference]: With dead ends: 789 [2022-03-20 03:05:56,454 INFO L226 Difference]: Without dead ends: 437 [2022-03-20 03:05:56,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:56,455 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 61 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:56,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 499 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 03:05:56,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-03-20 03:05:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 387. [2022-03-20 03:05:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5418848167539267) internal successors, (589), 382 states have internal predecessors, (589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 593 transitions. [2022-03-20 03:05:56,465 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 593 transitions. Word has length 132 [2022-03-20 03:05:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:56,466 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 593 transitions. [2022-03-20 03:05:56,466 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 593 transitions. [2022-03-20 03:05:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 03:05:56,467 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:56,467 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:56,467 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 03:05:56,467 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:56,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:56,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1043512956, now seen corresponding path program 1 times [2022-03-20 03:05:56,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:56,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276301089] [2022-03-20 03:05:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:56,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:56,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:56,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:56,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276301089] [2022-03-20 03:05:56,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276301089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:56,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:56,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:56,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807541679] [2022-03-20 03:05:56,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:56,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:56,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:56,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:56,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:56,560 INFO L87 Difference]: Start difference. First operand 387 states and 593 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:58,836 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 03:05:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:59,880 INFO L93 Difference]: Finished difference Result 825 states and 1264 transitions. [2022-03-20 03:05:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:59,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 03:05:59,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:59,883 INFO L225 Difference]: With dead ends: 825 [2022-03-20 03:05:59,883 INFO L226 Difference]: Without dead ends: 464 [2022-03-20 03:05:59,883 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:59,884 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 143 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:59,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 388 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 03:05:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-20 03:05:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 387. [2022-03-20 03:05:59,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5261780104712042) internal successors, (583), 382 states have internal predecessors, (583), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 587 transitions. [2022-03-20 03:05:59,890 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 587 transitions. Word has length 134 [2022-03-20 03:05:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:59,891 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 587 transitions. [2022-03-20 03:05:59,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 587 transitions. [2022-03-20 03:05:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 03:05:59,892 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:59,892 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 03:05:59,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 03:05:59,892 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:59,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash 724097685, now seen corresponding path program 1 times [2022-03-20 03:05:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:59,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361037699] [2022-03-20 03:05:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:59,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:00,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:00,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:00,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361037699] [2022-03-20 03:06:00,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361037699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:00,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:00,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:00,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033496600] [2022-03-20 03:06:00,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:00,017 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:00,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:00,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:00,018 INFO L87 Difference]: Start difference. First operand 387 states and 587 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:03,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:03,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:03,796 INFO L93 Difference]: Finished difference Result 825 states and 1252 transitions. [2022-03-20 03:06:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:03,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have 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 03:06:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:03,798 INFO L225 Difference]: With dead ends: 825 [2022-03-20 03:06:03,798 INFO L226 Difference]: Without dead ends: 464 [2022-03-20 03:06:03,799 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:03,799 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 131 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:03,800 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 03:06:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-20 03:06:03,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 387. [2022-03-20 03:06:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5157068062827226) internal successors, (579), 382 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 583 transitions. [2022-03-20 03:06:03,807 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 583 transitions. Word has length 140 [2022-03-20 03:06:03,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:03,807 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 583 transitions. [2022-03-20 03:06:03,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 583 transitions. [2022-03-20 03:06:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 03:06:03,808 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:03,808 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 03:06:03,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 03:06:03,809 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:03,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:03,809 INFO L85 PathProgramCache]: Analyzing trace with hash 695597395, now seen corresponding path program 1 times [2022-03-20 03:06:03,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:03,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189430879] [2022-03-20 03:06:03,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:03,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 03:06:03,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:03,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189430879] [2022-03-20 03:06:03,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189430879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:03,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:03,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:03,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529061361] [2022-03-20 03:06:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:03,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:03,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:03,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:03,912 INFO L87 Difference]: Start difference. First operand 387 states and 583 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:06,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:07,471 WARN L534 Checker$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 03:06:08,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:09,017 INFO L93 Difference]: Finished difference Result 797 states and 1205 transitions. [2022-03-20 03:06:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:09,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-20 03:06:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:09,019 INFO L225 Difference]: With dead ends: 797 [2022-03-20 03:06:09,019 INFO L226 Difference]: Without dead ends: 436 [2022-03-20 03:06:09,020 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:09,020 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 34 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:09,020 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 615 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 03:06:09,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-03-20 03:06:09,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 413. [2022-03-20 03:06:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5122549019607843) internal successors, (617), 408 states have internal predecessors, (617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 621 transitions. [2022-03-20 03:06:09,027 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 621 transitions. Word has length 140 [2022-03-20 03:06:09,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:09,028 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 621 transitions. [2022-03-20 03:06:09,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 621 transitions. [2022-03-20 03:06:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 03:06:09,029 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:09,029 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:09,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 03:06:09,029 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:09,030 INFO L85 PathProgramCache]: Analyzing trace with hash 46305045, now seen corresponding path program 1 times [2022-03-20 03:06:09,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:09,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374840604] [2022-03-20 03:06:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:09,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:09,145 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:09,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:09,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374840604] [2022-03-20 03:06:09,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374840604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:09,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:09,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:09,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323484522] [2022-03-20 03:06:09,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:09,146 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:09,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:09,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:09,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:09,147 INFO L87 Difference]: Start difference. First operand 413 states and 621 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:10,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:12,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:14,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:15,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:15,113 INFO L93 Difference]: Finished difference Result 840 states and 1265 transitions. [2022-03-20 03:06:15,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:15,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-20 03:06:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:15,116 INFO L225 Difference]: With dead ends: 840 [2022-03-20 03:06:15,116 INFO L226 Difference]: Without dead ends: 453 [2022-03-20 03:06:15,117 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:15,117 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 70 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:15,117 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 513 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 03:06:15,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-03-20 03:06:15,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 413. [2022-03-20 03:06:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5098039215686274) internal successors, (616), 408 states have internal predecessors, (616), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 620 transitions. [2022-03-20 03:06:15,124 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 620 transitions. Word has length 143 [2022-03-20 03:06:15,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:15,124 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 620 transitions. [2022-03-20 03:06:15,124 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:15,125 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 620 transitions. [2022-03-20 03:06:15,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 03:06:15,125 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:15,126 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:15,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 03:06:15,126 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:15,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:15,126 INFO L85 PathProgramCache]: Analyzing trace with hash 848823702, now seen corresponding path program 1 times [2022-03-20 03:06:15,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:15,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310008934] [2022-03-20 03:06:15,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:15,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:15,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:15,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310008934] [2022-03-20 03:06:15,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310008934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:15,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:15,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:15,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829732782] [2022-03-20 03:06:15,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:15,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:15,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:15,224 INFO L87 Difference]: Start difference. First operand 413 states and 620 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:16,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:18,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:19,608 INFO L93 Difference]: Finished difference Result 832 states and 1250 transitions. [2022-03-20 03:06:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:19,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 03:06:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:19,610 INFO L225 Difference]: With dead ends: 832 [2022-03-20 03:06:19,610 INFO L226 Difference]: Without dead ends: 445 [2022-03-20 03:06:19,611 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 03:06:19,611 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 59 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:19,612 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 531 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 03:06:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-03-20 03:06:19,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 413. [2022-03-20 03:06:19,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5073529411764706) internal successors, (615), 408 states have internal predecessors, (615), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 619 transitions. [2022-03-20 03:06:19,619 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 619 transitions. Word has length 144 [2022-03-20 03:06:19,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:19,619 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 619 transitions. [2022-03-20 03:06:19,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 619 transitions. [2022-03-20 03:06:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:06:19,620 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:19,620 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:19,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 03:06:19,621 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:19,621 INFO L85 PathProgramCache]: Analyzing trace with hash 207161824, now seen corresponding path program 1 times [2022-03-20 03:06:19,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:19,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079828018] [2022-03-20 03:06:19,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:19,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 03:06:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:19,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079828018] [2022-03-20 03:06:19,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079828018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:19,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:19,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:19,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691905109] [2022-03-20 03:06:19,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:19,750 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:19,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:19,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:19,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:19,750 INFO L87 Difference]: Start difference. First operand 413 states and 619 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 03:06:23,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:24,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:25,194 INFO L93 Difference]: Finished difference Result 822 states and 1236 transitions. [2022-03-20 03:06:25,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:25,194 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 145 [2022-03-20 03:06:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:25,195 INFO L225 Difference]: With dead ends: 822 [2022-03-20 03:06:25,195 INFO L226 Difference]: Without dead ends: 435 [2022-03-20 03:06:25,196 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:25,196 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 70 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:25,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 543 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 03:06:25,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-20 03:06:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 413. [2022-03-20 03:06:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5049019607843137) internal successors, (614), 408 states have internal predecessors, (614), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 618 transitions. [2022-03-20 03:06:25,203 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 618 transitions. Word has length 145 [2022-03-20 03:06:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:25,203 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 618 transitions. [2022-03-20 03:06:25,204 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 03:06:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 618 transitions. [2022-03-20 03:06:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:06:25,205 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:25,205 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:25,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 03:06:25,205 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:25,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:25,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1576594501, now seen corresponding path program 1 times [2022-03-20 03:06:25,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:25,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664901849] [2022-03-20 03:06:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:25,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:25,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664901849] [2022-03-20 03:06:25,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664901849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:25,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:25,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:25,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373902296] [2022-03-20 03:06:25,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:25,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:25,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:25,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:25,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:25,323 INFO L87 Difference]: Start difference. First operand 413 states and 618 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:27,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:30,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:30,440 INFO L93 Difference]: Finished difference Result 822 states and 1234 transitions. [2022-03-20 03:06:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 03:06:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:30,442 INFO L225 Difference]: With dead ends: 822 [2022-03-20 03:06:30,442 INFO L226 Difference]: Without dead ends: 435 [2022-03-20 03:06:30,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:30,444 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 50 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:30,444 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 545 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 03:06:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-20 03:06:30,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 413. [2022-03-20 03:06:30,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5024509803921569) internal successors, (613), 408 states have internal predecessors, (613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 617 transitions. [2022-03-20 03:06:30,452 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 617 transitions. Word has length 145 [2022-03-20 03:06:30,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:30,453 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 617 transitions. [2022-03-20 03:06:30,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 617 transitions. [2022-03-20 03:06:30,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:06:30,454 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:30,454 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:30,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 03:06:30,454 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:30,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:30,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1808232930, now seen corresponding path program 1 times [2022-03-20 03:06:30,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:30,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910849175] [2022-03-20 03:06:30,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:30,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:30,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 03:06:30,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:30,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910849175] [2022-03-20 03:06:30,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910849175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:30,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:30,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:30,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493329612] [2022-03-20 03:06:30,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:30,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:30,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:30,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:30,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:30,604 INFO L87 Difference]: Start difference. First operand 413 states and 617 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 03:06:32,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:34,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:36,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:37,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:37,795 INFO L93 Difference]: Finished difference Result 811 states and 1219 transitions. [2022-03-20 03:06:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:37,796 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 145 [2022-03-20 03:06:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:37,797 INFO L225 Difference]: With dead ends: 811 [2022-03-20 03:06:37,797 INFO L226 Difference]: Without dead ends: 424 [2022-03-20 03:06:37,798 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:37,798 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:37,798 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 591 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 420 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 03:06:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-03-20 03:06:37,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 413. [2022-03-20 03:06:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5) internal successors, (612), 408 states have internal predecessors, (612), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 616 transitions. [2022-03-20 03:06:37,805 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 616 transitions. Word has length 145 [2022-03-20 03:06:37,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:37,805 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 616 transitions. [2022-03-20 03:06:37,805 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 03:06:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 616 transitions. [2022-03-20 03:06:37,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:06:37,806 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:37,806 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:37,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 03:06:37,807 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:37,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:37,807 INFO L85 PathProgramCache]: Analyzing trace with hash 766047900, now seen corresponding path program 1 times [2022-03-20 03:06:37,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:37,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244548555] [2022-03-20 03:06:37,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:37,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:37,907 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:37,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:37,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244548555] [2022-03-20 03:06:37,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244548555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:37,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:37,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:37,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671058114] [2022-03-20 03:06:37,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:37,908 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:37,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:37,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:37,909 INFO L87 Difference]: Start difference. First operand 413 states and 616 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:39,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:40,329 INFO L93 Difference]: Finished difference Result 820 states and 1228 transitions. [2022-03-20 03:06:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:40,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 03:06:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:40,331 INFO L225 Difference]: With dead ends: 820 [2022-03-20 03:06:40,331 INFO L226 Difference]: Without dead ends: 433 [2022-03-20 03:06:40,332 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:40,332 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 47 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:40,333 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:06:40,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-03-20 03:06:40,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 413. [2022-03-20 03:06:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.4975490196078431) internal successors, (611), 408 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 615 transitions. [2022-03-20 03:06:40,339 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 615 transitions. Word has length 146 [2022-03-20 03:06:40,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:40,340 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 615 transitions. [2022-03-20 03:06:40,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:40,340 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 615 transitions. [2022-03-20 03:06:40,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:06:40,341 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:40,341 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:40,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 03:06:40,341 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:40,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1758864512, now seen corresponding path program 1 times [2022-03-20 03:06:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:40,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265269214] [2022-03-20 03:06:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:40,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:40,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:40,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265269214] [2022-03-20 03:06:40,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265269214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:40,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:40,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:40,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338536156] [2022-03-20 03:06:40,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:40,449 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:40,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:40,450 INFO L87 Difference]: Start difference. First operand 413 states and 615 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:41,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:42,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:45,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:46,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:46,000 INFO L93 Difference]: Finished difference Result 877 states and 1308 transitions. [2022-03-20 03:06:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:46,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 03:06:46,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:46,002 INFO L225 Difference]: With dead ends: 877 [2022-03-20 03:06:46,002 INFO L226 Difference]: Without dead ends: 490 [2022-03-20 03:06:46,003 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:46,003 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 129 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:46,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 414 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 03:06:46,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-03-20 03:06:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 413. [2022-03-20 03:06:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.4877450980392157) internal successors, (607), 408 states have internal predecessors, (607), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 611 transitions. [2022-03-20 03:06:46,010 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 611 transitions. Word has length 146 [2022-03-20 03:06:46,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:46,010 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 611 transitions. [2022-03-20 03:06:46,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 611 transitions. [2022-03-20 03:06:46,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 03:06:46,011 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:46,011 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:46,011 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 03:06:46,011 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:46,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1545854719, now seen corresponding path program 1 times [2022-03-20 03:06:46,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:46,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617845963] [2022-03-20 03:06:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:46,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:46,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:46,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617845963] [2022-03-20 03:06:46,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617845963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:46,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:46,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:46,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103775658] [2022-03-20 03:06:46,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:46,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:46,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:46,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:46,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:46,110 INFO L87 Difference]: Start difference. First operand 413 states and 611 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 03:06:47,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:49,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:51,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:51,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:51,855 INFO L93 Difference]: Finished difference Result 877 states and 1300 transitions. [2022-03-20 03:06:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:51,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-20 03:06:51,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:51,857 INFO L225 Difference]: With dead ends: 877 [2022-03-20 03:06:51,857 INFO L226 Difference]: Without dead ends: 490 [2022-03-20 03:06:51,858 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:51,858 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 128 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:51,858 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 388 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 03:06:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-03-20 03:06:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 413. [2022-03-20 03:06:51,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.4779411764705883) internal successors, (603), 408 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 607 transitions. [2022-03-20 03:06:51,865 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 607 transitions. Word has length 147 [2022-03-20 03:06:51,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:51,865 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 607 transitions. [2022-03-20 03:06:51,865 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 03:06:51,866 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 607 transitions. [2022-03-20 03:06:51,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 03:06:51,866 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:51,867 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:51,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 03:06:51,868 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:51,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:51,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1616123013, now seen corresponding path program 1 times [2022-03-20 03:06:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:51,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796090348] [2022-03-20 03:06:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:51,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:51,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:51,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796090348] [2022-03-20 03:06:51,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796090348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:51,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:51,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:51,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299405422] [2022-03-20 03:06:51,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:51,970 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:51,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:51,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:51,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:51,970 INFO L87 Difference]: Start difference. First operand 413 states and 607 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:53,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:55,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:56,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:56,641 INFO L93 Difference]: Finished difference Result 917 states and 1353 transitions. [2022-03-20 03:06:56,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:56,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-20 03:06:56,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:56,643 INFO L225 Difference]: With dead ends: 917 [2022-03-20 03:06:56,643 INFO L226 Difference]: Without dead ends: 530 [2022-03-20 03:06:56,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:56,644 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 121 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:56,644 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 388 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 03:06:56,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-03-20 03:06:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 446. [2022-03-20 03:06:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 441 states have (on average 1.473922902494331) internal successors, (650), 441 states have internal predecessors, (650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:56,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 654 transitions. [2022-03-20 03:06:56,651 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 654 transitions. Word has length 149 [2022-03-20 03:06:56,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:56,652 INFO L478 AbstractCegarLoop]: Abstraction has 446 states and 654 transitions. [2022-03-20 03:06:56,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 654 transitions. [2022-03-20 03:06:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 03:06:56,653 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:56,653 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:56,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 03:06:56,654 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:56,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:56,654 INFO L85 PathProgramCache]: Analyzing trace with hash -489333033, now seen corresponding path program 1 times [2022-03-20 03:06:56,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:56,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866343947] [2022-03-20 03:06:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:56,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:56,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:56,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866343947] [2022-03-20 03:06:56,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866343947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:56,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:56,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:56,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417759908] [2022-03-20 03:06:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:56,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:56,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:56,749 INFO L87 Difference]: Start difference. First operand 446 states and 654 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:59,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:01,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:02,272 INFO L93 Difference]: Finished difference Result 880 states and 1296 transitions. [2022-03-20 03:07:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:02,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-20 03:07:02,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:02,274 INFO L225 Difference]: With dead ends: 880 [2022-03-20 03:07:02,274 INFO L226 Difference]: Without dead ends: 460 [2022-03-20 03:07:02,274 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:02,275 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 36 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:02,275 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 557 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 03:07:02,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-20 03:07:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 446. [2022-03-20 03:07:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 441 states have (on average 1.471655328798186) internal successors, (649), 441 states have internal predecessors, (649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 653 transitions. [2022-03-20 03:07:02,282 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 653 transitions. Word has length 150 [2022-03-20 03:07:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:02,282 INFO L478 AbstractCegarLoop]: Abstraction has 446 states and 653 transitions. [2022-03-20 03:07:02,282 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 653 transitions. [2022-03-20 03:07:02,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 03:07:02,283 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:02,283 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:02,284 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 03:07:02,284 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1392709402, now seen corresponding path program 1 times [2022-03-20 03:07:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:02,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251652939] [2022-03-20 03:07:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:02,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:07:02,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:02,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251652939] [2022-03-20 03:07:02,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251652939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:02,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:02,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:02,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005460863] [2022-03-20 03:07:02,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:02,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:02,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:02,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:02,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:02,402 INFO L87 Difference]: Start difference. First operand 446 states and 653 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:04,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:04,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:04,929 INFO L93 Difference]: Finished difference Result 983 states and 1444 transitions. [2022-03-20 03:07:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:04,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-20 03:07:04,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:04,932 INFO L225 Difference]: With dead ends: 983 [2022-03-20 03:07:04,932 INFO L226 Difference]: Without dead ends: 563 [2022-03-20 03:07:04,932 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:04,933 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 119 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:04,933 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 390 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:07:04,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-03-20 03:07:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 481. [2022-03-20 03:07:04,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.468487394957983) internal successors, (699), 476 states have internal predecessors, (699), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:04,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 703 transitions. [2022-03-20 03:07:04,943 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 703 transitions. Word has length 150 [2022-03-20 03:07:04,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:04,945 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 703 transitions. [2022-03-20 03:07:04,945 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 703 transitions. [2022-03-20 03:07:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-20 03:07:04,947 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:04,948 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:04,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 03:07:04,948 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash -900599382, now seen corresponding path program 1 times [2022-03-20 03:07:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:04,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889609766] [2022-03-20 03:07:04,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:04,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:07:05,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:05,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889609766] [2022-03-20 03:07:05,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889609766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:05,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:05,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:05,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119570971] [2022-03-20 03:07:05,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:05,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:05,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:05,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:05,065 INFO L87 Difference]: Start difference. First operand 481 states and 703 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:07,074 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 03:07:07,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:07,501 INFO L93 Difference]: Finished difference Result 948 states and 1392 transitions. [2022-03-20 03:07:07,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:07,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-20 03:07:07,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:07,503 INFO L225 Difference]: With dead ends: 948 [2022-03-20 03:07:07,503 INFO L226 Difference]: Without dead ends: 493 [2022-03-20 03:07:07,504 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:07,504 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 31 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:07,504 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 559 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:07:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-03-20 03:07:07,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 481. [2022-03-20 03:07:07,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4663865546218486) internal successors, (698), 476 states have internal predecessors, (698), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 702 transitions. [2022-03-20 03:07:07,511 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 702 transitions. Word has length 151 [2022-03-20 03:07:07,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:07,512 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 702 transitions. [2022-03-20 03:07:07,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 702 transitions. [2022-03-20 03:07:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-20 03:07:07,513 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:07,513 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 03:07:07,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 03:07:07,513 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:07,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:07,513 INFO L85 PathProgramCache]: Analyzing trace with hash -478888246, now seen corresponding path program 1 times [2022-03-20 03:07:07,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:07,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102294694] [2022-03-20 03:07:07,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:07,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:07:07,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:07,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102294694] [2022-03-20 03:07:07,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102294694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:07,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:07,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:07,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702635908] [2022-03-20 03:07:07,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:07,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:07,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:07,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:07,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:07,611 INFO L87 Difference]: Start difference. First operand 481 states and 702 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:08,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:11,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:12,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:13,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:13,029 INFO L93 Difference]: Finished difference Result 1089 states and 1596 transitions. [2022-03-20 03:07:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:13,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-20 03:07:13,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:13,032 INFO L225 Difference]: With dead ends: 1089 [2022-03-20 03:07:13,032 INFO L226 Difference]: Without dead ends: 634 [2022-03-20 03:07:13,033 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:13,034 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 119 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:13,034 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 400 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 03:07:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-03-20 03:07:13,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 545. [2022-03-20 03:07:13,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4666666666666666) internal successors, (792), 540 states have internal predecessors, (792), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:13,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 796 transitions. [2022-03-20 03:07:13,047 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 796 transitions. Word has length 159 [2022-03-20 03:07:13,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:13,048 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 796 transitions. [2022-03-20 03:07:13,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 796 transitions. [2022-03-20 03:07:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 03:07:13,049 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:13,049 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 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, 1] [2022-03-20 03:07:13,049 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 03:07:13,049 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2036542329, now seen corresponding path program 1 times [2022-03-20 03:07:13,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:13,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547816908] [2022-03-20 03:07:13,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:13,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-03-20 03:07:13,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:13,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547816908] [2022-03-20 03:07:13,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547816908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:13,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:13,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169160795] [2022-03-20 03:07:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:13,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:13,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:13,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:13,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:13,156 INFO L87 Difference]: Start difference. First operand 545 states and 796 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:14,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:15,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:17,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:18,202 INFO L93 Difference]: Finished difference Result 1077 states and 1580 transitions. [2022-03-20 03:07:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:18,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-20 03:07:18,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:18,204 INFO L225 Difference]: With dead ends: 1077 [2022-03-20 03:07:18,204 INFO L226 Difference]: Without dead ends: 558 [2022-03-20 03:07:18,205 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:18,205 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 42 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:18,206 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 597 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 03:07:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-20 03:07:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 545. [2022-03-20 03:07:18,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4648148148148148) internal successors, (791), 540 states have internal predecessors, (791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 795 transitions. [2022-03-20 03:07:18,213 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 795 transitions. Word has length 167 [2022-03-20 03:07:18,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:18,213 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 795 transitions. [2022-03-20 03:07:18,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:18,214 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 795 transitions. [2022-03-20 03:07:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 03:07:18,214 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:18,215 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, 1] [2022-03-20 03:07:18,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 03:07:18,215 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:18,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1628807593, now seen corresponding path program 1 times [2022-03-20 03:07:18,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:18,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528954504] [2022-03-20 03:07:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:18,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:18,335 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 03:07:18,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:18,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528954504] [2022-03-20 03:07:18,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528954504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:18,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:18,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:18,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824353054] [2022-03-20 03:07:18,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:18,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:18,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:18,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:18,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:18,338 INFO L87 Difference]: Start difference. First operand 545 states and 795 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 03:07:20,347 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 03:07:20,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:20,770 INFO L93 Difference]: Finished difference Result 1575 states and 2315 transitions. [2022-03-20 03:07:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 173 [2022-03-20 03:07:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:20,773 INFO L225 Difference]: With dead ends: 1575 [2022-03-20 03:07:20,773 INFO L226 Difference]: Without dead ends: 1056 [2022-03-20 03:07:20,774 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:20,774 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:20,774 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 576 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:07:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-03-20 03:07:20,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2022-03-20 03:07:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4605137963843957) internal successors, (1535), 1051 states have internal predecessors, (1535), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:20,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1539 transitions. [2022-03-20 03:07:20,792 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1539 transitions. Word has length 173 [2022-03-20 03:07:20,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:20,792 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1539 transitions. [2022-03-20 03:07:20,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 03:07:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1539 transitions. [2022-03-20 03:07:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-20 03:07:20,794 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:20,794 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, 1, 1] [2022-03-20 03:07:20,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 03:07:20,794 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:20,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:20,794 INFO L85 PathProgramCache]: Analyzing trace with hash -790443429, now seen corresponding path program 1 times [2022-03-20 03:07:20,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:20,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090461570] [2022-03-20 03:07:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:20,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:20,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:20,895 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 03:07:20,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:20,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090461570] [2022-03-20 03:07:20,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090461570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:20,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:20,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:20,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435631412] [2022-03-20 03:07:20,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:20,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:20,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:20,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:20,897 INFO L87 Difference]: Start difference. First operand 1056 states and 1539 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:22,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:24,096 INFO L93 Difference]: Finished difference Result 2562 states and 3748 transitions. [2022-03-20 03:07:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:24,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-20 03:07:24,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:24,102 INFO L225 Difference]: With dead ends: 2562 [2022-03-20 03:07:24,102 INFO L226 Difference]: Without dead ends: 1532 [2022-03-20 03:07:24,104 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:24,105 INFO L913 BasicCegarLoop]: 309 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:24,105 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 503 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 03:07:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2022-03-20 03:07:24,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1530. [2022-03-20 03:07:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1525 states have (on average 1.458360655737705) internal successors, (2224), 1525 states have internal predecessors, (2224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 2228 transitions. [2022-03-20 03:07:24,157 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 2228 transitions. Word has length 174 [2022-03-20 03:07:24,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:24,157 INFO L478 AbstractCegarLoop]: Abstraction has 1530 states and 2228 transitions. [2022-03-20 03:07:24,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 2228 transitions. [2022-03-20 03:07:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-20 03:07:24,159 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:24,159 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, 1, 1, 1] [2022-03-20 03:07:24,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 03:07:24,160 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:24,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:24,160 INFO L85 PathProgramCache]: Analyzing trace with hash -729324120, now seen corresponding path program 1 times [2022-03-20 03:07:24,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:24,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19209985] [2022-03-20 03:07:24,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:24,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:24,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 03:07:24,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:24,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19209985] [2022-03-20 03:07:24,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19209985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:24,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:24,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:24,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092480520] [2022-03-20 03:07:24,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:24,287 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:24,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:24,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:24,288 INFO L87 Difference]: Start difference. First operand 1530 states and 2228 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:25,411 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 03:07:27,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:27,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:27,897 INFO L93 Difference]: Finished difference Result 3544 states and 5178 transitions. [2022-03-20 03:07:27,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:27,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-20 03:07:27,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:27,903 INFO L225 Difference]: With dead ends: 3544 [2022-03-20 03:07:27,903 INFO L226 Difference]: Without dead ends: 2040 [2022-03-20 03:07:27,905 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:27,905 INFO L913 BasicCegarLoop]: 331 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:27,905 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 525 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 03:07:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2022-03-20 03:07:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2034. [2022-03-20 03:07:27,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2034 states, 2029 states have (on average 1.4593395761458847) internal successors, (2961), 2029 states have internal predecessors, (2961), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 2965 transitions. [2022-03-20 03:07:27,935 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 2965 transitions. Word has length 175 [2022-03-20 03:07:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:27,936 INFO L478 AbstractCegarLoop]: Abstraction has 2034 states and 2965 transitions. [2022-03-20 03:07:27,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 2965 transitions. [2022-03-20 03:07:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-20 03:07:27,939 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:27,939 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, 1, 1, 1] [2022-03-20 03:07:27,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 03:07:27,939 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:27,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:27,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1677376086, now seen corresponding path program 1 times [2022-03-20 03:07:27,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:27,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325197011] [2022-03-20 03:07:27,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:27,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:28,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:28,040 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-20 03:07:28,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:28,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325197011] [2022-03-20 03:07:28,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325197011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:28,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:28,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:28,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874891946] [2022-03-20 03:07:28,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:28,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:28,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:28,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:28,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:28,042 INFO L87 Difference]: Start difference. First operand 2034 states and 2965 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:29,815 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 03:07:31,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:32,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:32,135 INFO L93 Difference]: Finished difference Result 4069 states and 5937 transitions. [2022-03-20 03:07:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:32,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-20 03:07:32,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:32,140 INFO L225 Difference]: With dead ends: 4069 [2022-03-20 03:07:32,140 INFO L226 Difference]: Without dead ends: 2061 [2022-03-20 03:07:32,142 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:32,143 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:32,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 03:07:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2022-03-20 03:07:32,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2061. [2022-03-20 03:07:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2061 states, 2056 states have (on average 1.4571984435797665) internal successors, (2996), 2056 states have internal predecessors, (2996), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 3000 transitions. [2022-03-20 03:07:32,170 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 3000 transitions. Word has length 175 [2022-03-20 03:07:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:32,170 INFO L478 AbstractCegarLoop]: Abstraction has 2061 states and 3000 transitions. [2022-03-20 03:07:32,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 3000 transitions. [2022-03-20 03:07:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-20 03:07:32,173 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:32,173 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, 1, 1, 1] [2022-03-20 03:07:32,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 03:07:32,173 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:32,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:32,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1291513684, now seen corresponding path program 1 times [2022-03-20 03:07:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:32,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191671451] [2022-03-20 03:07:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:32,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:32,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-20 03:07:32,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:32,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191671451] [2022-03-20 03:07:32,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191671451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:32,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:32,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:32,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093488512] [2022-03-20 03:07:32,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:32,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:32,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:32,255 INFO L87 Difference]: Start difference. First operand 2061 states and 3000 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:34,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:34,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:34,548 INFO L93 Difference]: Finished difference Result 4098 states and 5973 transitions. [2022-03-20 03:07:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:34,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-20 03:07:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:34,554 INFO L225 Difference]: With dead ends: 4098 [2022-03-20 03:07:34,554 INFO L226 Difference]: Without dead ends: 2063 [2022-03-20 03:07:34,557 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:34,557 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:34,557 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:07:34,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2022-03-20 03:07:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 2063. [2022-03-20 03:07:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2063 states, 2058 states have (on average 1.456754130223518) internal successors, (2998), 2058 states have internal predecessors, (2998), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:34,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 3002 transitions. [2022-03-20 03:07:34,589 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 3002 transitions. Word has length 175 [2022-03-20 03:07:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:34,589 INFO L478 AbstractCegarLoop]: Abstraction has 2063 states and 3002 transitions. [2022-03-20 03:07:34,589 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:34,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 3002 transitions. [2022-03-20 03:07:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-03-20 03:07:34,592 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:34,592 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:34,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 03:07:34,593 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1875638683, now seen corresponding path program 1 times [2022-03-20 03:07:34,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:34,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656773398] [2022-03-20 03:07:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:34,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-20 03:07:34,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:34,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656773398] [2022-03-20 03:07:34,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656773398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:34,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:34,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:34,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99643225] [2022-03-20 03:07:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:34,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:34,719 INFO L87 Difference]: Start difference. First operand 2063 states and 3002 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:36,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:38,475 WARN L534 Checker$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 03:07:38,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:38,963 INFO L93 Difference]: Finished difference Result 4327 states and 6291 transitions. [2022-03-20 03:07:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:38,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-03-20 03:07:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:38,981 INFO L225 Difference]: With dead ends: 4327 [2022-03-20 03:07:38,982 INFO L226 Difference]: Without dead ends: 2292 [2022-03-20 03:07:38,985 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:38,985 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 42 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:38,985 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 623 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 03:07:38,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-03-20 03:07:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2175. [2022-03-20 03:07:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2175 states, 2170 states have (on average 1.4552995391705068) internal successors, (3158), 2170 states have internal predecessors, (3158), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:39,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3162 transitions. [2022-03-20 03:07:39,015 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3162 transitions. Word has length 185 [2022-03-20 03:07:39,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:39,015 INFO L478 AbstractCegarLoop]: Abstraction has 2175 states and 3162 transitions. [2022-03-20 03:07:39,015 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3162 transitions. [2022-03-20 03:07:39,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-03-20 03:07:39,017 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:39,018 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:39,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 03:07:39,018 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:39,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1014739874, now seen corresponding path program 1 times [2022-03-20 03:07:39,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:39,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32129637] [2022-03-20 03:07:39,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:39,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-03-20 03:07:39,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:39,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32129637] [2022-03-20 03:07:39,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32129637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:39,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:39,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45892105] [2022-03-20 03:07:39,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:39,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:39,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:39,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:39,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:39,119 INFO L87 Difference]: Start difference. First operand 2175 states and 3162 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:41,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:43,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:44,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:44,748 INFO L93 Difference]: Finished difference Result 4555 states and 6619 transitions. [2022-03-20 03:07:44,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:44,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 186 [2022-03-20 03:07:44,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:44,753 INFO L225 Difference]: With dead ends: 4555 [2022-03-20 03:07:44,753 INFO L226 Difference]: Without dead ends: 2408 [2022-03-20 03:07:44,756 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:44,756 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 91 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:44,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 584 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 522 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 03:07:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2022-03-20 03:07:44,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2208. [2022-03-20 03:07:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2203 states have (on average 1.4552882433045846) internal successors, (3206), 2203 states have internal predecessors, (3206), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3210 transitions. [2022-03-20 03:07:44,788 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3210 transitions. Word has length 186 [2022-03-20 03:07:44,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:44,788 INFO L478 AbstractCegarLoop]: Abstraction has 2208 states and 3210 transitions. [2022-03-20 03:07:44,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:44,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3210 transitions. [2022-03-20 03:07:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-03-20 03:07:44,790 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:44,790 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:44,790 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 03:07:44,790 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:44,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:44,790 INFO L85 PathProgramCache]: Analyzing trace with hash -769016451, now seen corresponding path program 1 times [2022-03-20 03:07:44,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:44,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817211069] [2022-03-20 03:07:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:44,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 03:07:44,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:44,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817211069] [2022-03-20 03:07:44,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817211069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:44,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:44,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:44,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736529918] [2022-03-20 03:07:44,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:44,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:44,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:44,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:44,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:44,914 INFO L87 Difference]: Start difference. First operand 2208 states and 3210 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:47,867 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 03:07:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:48,960 INFO L93 Difference]: Finished difference Result 4588 states and 6664 transitions. [2022-03-20 03:07:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 186 [2022-03-20 03:07:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:48,982 INFO L225 Difference]: With dead ends: 4588 [2022-03-20 03:07:48,982 INFO L226 Difference]: Without dead ends: 2408 [2022-03-20 03:07:48,984 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:48,985 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 71 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:48,985 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 584 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 03:07:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2022-03-20 03:07:49,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2265. [2022-03-20 03:07:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2260 states have (on average 1.454424778761062) internal successors, (3287), 2260 states have internal predecessors, (3287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3291 transitions. [2022-03-20 03:07:49,025 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3291 transitions. Word has length 186 [2022-03-20 03:07:49,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:49,025 INFO L478 AbstractCegarLoop]: Abstraction has 2265 states and 3291 transitions. [2022-03-20 03:07:49,025 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:49,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3291 transitions. [2022-03-20 03:07:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-03-20 03:07:49,028 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:49,029 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:49,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 03:07:49,029 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:49,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:49,029 INFO L85 PathProgramCache]: Analyzing trace with hash 31163674, now seen corresponding path program 1 times [2022-03-20 03:07:49,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:49,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091965167] [2022-03-20 03:07:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:49,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 03:07:49,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:49,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091965167] [2022-03-20 03:07:49,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091965167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:49,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:49,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:49,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801258526] [2022-03-20 03:07:49,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:49,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:49,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:49,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:49,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:49,165 INFO L87 Difference]: Start difference. First operand 2265 states and 3291 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:50,285 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 03:07:53,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:54,380 INFO L93 Difference]: Finished difference Result 4639 states and 6736 transitions. [2022-03-20 03:07:54,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:54,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2022-03-20 03:07:54,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:54,384 INFO L225 Difference]: With dead ends: 4639 [2022-03-20 03:07:54,384 INFO L226 Difference]: Without dead ends: 2402 [2022-03-20 03:07:54,387 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:54,388 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 68 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:54,388 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 586 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 03:07:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2022-03-20 03:07:54,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2268. [2022-03-20 03:07:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 2263 states have (on average 1.453822359699514) internal successors, (3290), 2263 states have internal predecessors, (3290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3294 transitions. [2022-03-20 03:07:54,419 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3294 transitions. Word has length 187 [2022-03-20 03:07:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:54,419 INFO L478 AbstractCegarLoop]: Abstraction has 2268 states and 3294 transitions. [2022-03-20 03:07:54,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3294 transitions. [2022-03-20 03:07:54,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 03:07:54,422 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:54,422 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:54,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 03:07:54,422 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:54,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1496093152, now seen corresponding path program 1 times [2022-03-20 03:07:54,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:54,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785469658] [2022-03-20 03:07:54,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:54,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 03:07:54,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:54,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785469658] [2022-03-20 03:07:54,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785469658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:54,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:54,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:54,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26946427] [2022-03-20 03:07:54,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:54,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:54,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:54,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:54,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:54,563 INFO L87 Difference]: Start difference. First operand 2268 states and 3294 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:55,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:57,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:58,012 INFO L93 Difference]: Finished difference Result 4642 states and 6736 transitions. [2022-03-20 03:07:58,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:58,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2022-03-20 03:07:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:58,016 INFO L225 Difference]: With dead ends: 4642 [2022-03-20 03:07:58,016 INFO L226 Difference]: Without dead ends: 2402 [2022-03-20 03:07:58,018 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:58,019 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 70 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:58,019 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 586 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 03:07:58,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2022-03-20 03:07:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2268. [2022-03-20 03:07:58,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 2263 states have (on average 1.4524966858152895) internal successors, (3287), 2263 states have internal predecessors, (3287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3291 transitions. [2022-03-20 03:07:58,049 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3291 transitions. Word has length 189 [2022-03-20 03:07:58,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:58,049 INFO L478 AbstractCegarLoop]: Abstraction has 2268 states and 3291 transitions. [2022-03-20 03:07:58,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3291 transitions. [2022-03-20 03:07:58,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-03-20 03:07:58,051 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:58,051 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:58,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 03:07:58,052 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:58,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:58,052 INFO L85 PathProgramCache]: Analyzing trace with hash 335353283, now seen corresponding path program 1 times [2022-03-20 03:07:58,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:58,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272068261] [2022-03-20 03:07:58,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:58,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 03:07:58,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:58,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272068261] [2022-03-20 03:07:58,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272068261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:58,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:58,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:58,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486672703] [2022-03-20 03:07:58,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:58,183 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:58,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:58,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:58,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:58,184 INFO L87 Difference]: Start difference. First operand 2268 states and 3291 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:59,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:02,170 INFO L93 Difference]: Finished difference Result 4795 states and 6934 transitions. [2022-03-20 03:08:02,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:08:02,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 190 [2022-03-20 03:08:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:02,177 INFO L225 Difference]: With dead ends: 4795 [2022-03-20 03:08:02,178 INFO L226 Difference]: Without dead ends: 2555 [2022-03-20 03:08:02,180 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:08:02,181 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 124 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:02,181 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 372 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 03:08:02,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2022-03-20 03:08:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2268. [2022-03-20 03:08:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 2263 states have (on average 1.4392399469730446) internal successors, (3257), 2263 states have internal predecessors, (3257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3261 transitions. [2022-03-20 03:08:02,212 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3261 transitions. Word has length 190 [2022-03-20 03:08:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:02,212 INFO L478 AbstractCegarLoop]: Abstraction has 2268 states and 3261 transitions. [2022-03-20 03:08:02,212 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3261 transitions. [2022-03-20 03:08:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-20 03:08:02,214 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:02,214 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:02,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 03:08:02,215 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:02,215 INFO L85 PathProgramCache]: Analyzing trace with hash -432234939, now seen corresponding path program 1 times [2022-03-20 03:08:02,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:02,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946679142] [2022-03-20 03:08:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:02,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-20 03:08:02,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:02,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946679142] [2022-03-20 03:08:02,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946679142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:02,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:02,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:08:02,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232381900] [2022-03-20 03:08:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:02,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:08:02,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:02,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:08:02,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:08:02,324 INFO L87 Difference]: Start difference. First operand 2268 states and 3261 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:04,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:05,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:06,886 INFO L93 Difference]: Finished difference Result 4755 states and 6826 transitions. [2022-03-20 03:08:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:08:06,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-03-20 03:08:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:06,890 INFO L225 Difference]: With dead ends: 4755 [2022-03-20 03:08:06,890 INFO L226 Difference]: Without dead ends: 2515 [2022-03-20 03:08:06,893 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:08:06,893 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 136 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:06,893 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 384 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 03:08:06,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2022-03-20 03:08:06,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2268. [2022-03-20 03:08:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 2263 states have (on average 1.4237737516570923) internal successors, (3222), 2263 states have internal predecessors, (3222), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3226 transitions. [2022-03-20 03:08:06,926 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3226 transitions. Word has length 195 [2022-03-20 03:08:06,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:06,926 INFO L478 AbstractCegarLoop]: Abstraction has 2268 states and 3226 transitions. [2022-03-20 03:08:06,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3226 transitions. [2022-03-20 03:08:06,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-20 03:08:06,929 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:06,929 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:06,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 03:08:06,929 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:06,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:06,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1210412290, now seen corresponding path program 1 times [2022-03-20 03:08:06,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:06,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780466149] [2022-03-20 03:08:06,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:06,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:07,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:07,034 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-20 03:08:07,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:07,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780466149] [2022-03-20 03:08:07,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780466149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:07,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:07,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:08:07,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067254897] [2022-03-20 03:08:07,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:07,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:08:07,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:07,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:08:07,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:08:07,035 INFO L87 Difference]: Start difference. First operand 2268 states and 3226 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:08,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:09,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:12,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:12,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:12,634 INFO L93 Difference]: Finished difference Result 4755 states and 6756 transitions. [2022-03-20 03:08:12,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:08:12,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-20 03:08:12,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:12,638 INFO L225 Difference]: With dead ends: 4755 [2022-03-20 03:08:12,638 INFO L226 Difference]: Without dead ends: 2515 [2022-03-20 03:08:12,640 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:08:12,641 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 109 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:12,641 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 392 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 03:08:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2022-03-20 03:08:12,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2268. [2022-03-20 03:08:12,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 2263 states have (on average 1.4184710561201945) internal successors, (3210), 2263 states have internal predecessors, (3210), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3214 transitions. [2022-03-20 03:08:12,688 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3214 transitions. Word has length 197 [2022-03-20 03:08:12,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:12,688 INFO L478 AbstractCegarLoop]: Abstraction has 2268 states and 3214 transitions. [2022-03-20 03:08:12,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:12,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3214 transitions. [2022-03-20 03:08:12,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-20 03:08:12,691 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:12,691 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:12,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 03:08:12,691 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:12,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:12,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1038778275, now seen corresponding path program 1 times [2022-03-20 03:08:12,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:12,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390408087] [2022-03-20 03:08:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:12,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 03:08:13,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:13,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390408087] [2022-03-20 03:08:13,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390408087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:13,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:13,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 03:08:13,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144530107] [2022-03-20 03:08:13,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:13,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 03:08:13,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:13,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 03:08:13,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:08:13,120 INFO L87 Difference]: Start difference. First operand 2268 states and 3214 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:14,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:16,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:19,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:20,594 INFO L93 Difference]: Finished difference Result 4529 states and 6420 transitions. [2022-03-20 03:08:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:08:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 198 [2022-03-20 03:08:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:20,598 INFO L225 Difference]: With dead ends: 4529 [2022-03-20 03:08:20,599 INFO L226 Difference]: Without dead ends: 2268 [2022-03-20 03:08:20,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 03:08:20,602 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:20,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 03:08:20,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2022-03-20 03:08:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2268. [2022-03-20 03:08:20,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 2263 states have (on average 1.418029164825453) internal successors, (3209), 2263 states have internal predecessors, (3209), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:20,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3213 transitions. [2022-03-20 03:08:20,634 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3213 transitions. Word has length 198 [2022-03-20 03:08:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:20,634 INFO L478 AbstractCegarLoop]: Abstraction has 2268 states and 3213 transitions. [2022-03-20 03:08:20,635 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3213 transitions. [2022-03-20 03:08:20,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-20 03:08:20,637 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:20,637 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:20,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 03:08:20,637 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:20,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:20,638 INFO L85 PathProgramCache]: Analyzing trace with hash -551704549, now seen corresponding path program 1 times [2022-03-20 03:08:20,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:20,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800770093] [2022-03-20 03:08:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-20 03:08:21,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:21,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800770093] [2022-03-20 03:08:21,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800770093] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:08:21,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455246795] [2022-03-20 03:08:21,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:21,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:08:21,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:08:21,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:08:21,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 03:08:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:22,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 167 conjunts are in the unsatisfiable core [2022-03-20 03:08:22,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:08:23,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:23,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:47,029 WARN L232 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 346 DAG size of output: 203 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-03-20 03:09:47,030 INFO L356 Elim1Store]: treesize reduction 2973, result has 30.4 percent of original size [2022-03-20 03:09:47,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 36 case distinctions, treesize of input 4131690638205 treesize of output 967050523134