/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:47:42,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:47:42,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:47:42,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:47:42,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:47:42,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:47:42,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:47:42,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:47:42,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:47:42,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:47:42,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:47:42,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:47:42,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:47:42,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:47:42,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:47:42,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:47:42,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:47:42,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:47:42,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:47:42,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:47:42,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:47:42,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:47:42,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:47:42,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:47:42,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 22:47:42,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 22:47:42,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 22:47:42,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 22:47:42,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 22:47:42,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 22:47:42,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 22:47:42,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 22:47:42,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 22:47:42,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 22:47:42,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 22:47:42,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 22:47:42,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 22:47:42,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 22:47:42,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:47:42,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:47:42,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:47:42,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:47:42,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:47:42,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:47:42,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:47:42,292 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:47:42,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:47:42,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:47:42,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:47:42,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:47:42,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:47:42,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:47:42,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:47:42,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:47:42,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:47:42,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:47:42,295 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:47:42,295 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:47:42,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:47:42,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:47:42,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:47:42,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:47:42,485 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:47:42,486 INFO L432 ainManager$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 [2022-01-31 22:47:42,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd749545/baa755cf453e4cb4bfd1ea59a0dcf58e/FLAG5fb25445f [2022-01-31 22:47:42,930 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:47:42,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-01-31 22:47:42,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd749545/baa755cf453e4cb4bfd1ea59a0dcf58e/FLAG5fb25445f [2022-01-31 22:47:43,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd749545/baa755cf453e4cb4bfd1ea59a0dcf58e [2022-01-31 22:47:43,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:47:43,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:47:43,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:47:43,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:47:43,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:47:43,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e1f23cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43, skipping insertion in model container [2022-01-31 22:47:43,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:47:43,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:47:43,613 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] [2022-01-31 22:47:43,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:47:43,626 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:47:43,697 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] [2022-01-31 22:47:43,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:47:43,716 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:47:43,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43 WrapperNode [2022-01-31 22:47:43,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:47:43,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:47:43,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:47:43,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:47:43,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:47:43,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:47:43,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:47:43,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:47:43,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (1/1) ... [2022-01-31 22:47:43,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:47:43,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:47:43,860 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) [2022-01-31 22:47:43,865 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 [2022-01-31 22:47:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:47:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:47:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:47:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 22:47:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 22:47:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:47:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:47:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 22:47:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 22:47:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 22:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:47:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 22:47:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:47:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:47:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:47:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 22:47:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 22:47:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:47:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:47:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:47:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 22:47:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 22:47:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 22:47:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 22:47:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:47:44,027 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:47:44,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:47:44,646 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:47:45,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 22:47:45,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 22:47:45,030 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:47:45,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:47:45,038 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:47:45,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:47:45 BoogieIcfgContainer [2022-01-31 22:47:45,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:47:45,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:47:45,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:47:45,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:47:45,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:47:43" (1/3) ... [2022-01-31 22:47:45,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4bcc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:47:45, skipping insertion in model container [2022-01-31 22:47:45,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:47:43" (2/3) ... [2022-01-31 22:47:45,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4bcc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:47:45, skipping insertion in model container [2022-01-31 22:47:45,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:47:45" (3/3) ... [2022-01-31 22:47:45,046 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-1.c [2022-01-31 22:47:45,050 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:47:45,050 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:47:45,090 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:47:45,096 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 22:47:45,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:47:45,115 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) [2022-01-31 22:47:45,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 22:47:45,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:45,130 INFO L514 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] [2022-01-31 22:47:45,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash 80900235, now seen corresponding path program 1 times [2022-01-31 22:47:45,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:45,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094348924] [2022-01-31 22:47:45,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:45,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:45,185 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:45,585 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:45,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094348924] [2022-01-31 22:47:45,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2094348924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:45,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:45,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:47:45,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261005963] [2022-01-31 22:47:45,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:45,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:47:45,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:45,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:47:45,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:47:45,619 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) [2022-01-31 22:47:46,952 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 [] [2022-01-31 22:47:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:48,440 INFO L93 Difference]: Finished difference Result 340 states and 572 transitions. [2022-01-31 22:47:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:47:48,442 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 [2022-01-31 22:47:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:48,449 INFO L225 Difference]: With dead ends: 340 [2022-01-31 22:47:48,449 INFO L226 Difference]: Without dead ends: 173 [2022-01-31 22:47:48,451 INFO L932 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 [2022-01-31 22:47:48,454 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 34 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:48,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 625 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 22:47:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-01-31 22:47:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 156. [2022-01-31 22:47:48,486 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) [2022-01-31 22:47:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 240 transitions. [2022-01-31 22:47:48,488 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 240 transitions. Word has length 50 [2022-01-31 22:47:48,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:48,489 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 240 transitions. [2022-01-31 22:47:48,489 INFO L471 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) [2022-01-31 22:47:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 240 transitions. [2022-01-31 22:47:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 22:47:48,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:48,491 INFO L514 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] [2022-01-31 22:47:48,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:47:48,491 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:48,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:48,492 INFO L85 PathProgramCache]: Analyzing trace with hash -450854301, now seen corresponding path program 1 times [2022-01-31 22:47:48,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:48,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776046114] [2022-01-31 22:47:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:48,508 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:48,508 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:48,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:48,511 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:48,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:48,645 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:48,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776046114] [2022-01-31 22:47:48,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [776046114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:48,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:48,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:47:48,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656909637] [2022-01-31 22:47:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:48,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:47:48,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:48,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:47:48,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:47:48,647 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) [2022-01-31 22:47:50,930 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 [] [2022-01-31 22:47:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:53,042 INFO L93 Difference]: Finished difference Result 405 states and 628 transitions. [2022-01-31 22:47:53,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:47:53,043 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 [2022-01-31 22:47:53,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:53,045 INFO L225 Difference]: With dead ends: 405 [2022-01-31 22:47:53,045 INFO L226 Difference]: Without dead ends: 275 [2022-01-31 22:47:53,045 INFO L932 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 [2022-01-31 22:47:53,046 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 147 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:53,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 652 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 22:47:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-01-31 22:47:53,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 172. [2022-01-31 22:47:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.562874251497006) internal successors, (261), 167 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions. [2022-01-31 22:47:53,066 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 63 [2022-01-31 22:47:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:53,067 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 265 transitions. [2022-01-31 22:47:53,072 INFO L471 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) [2022-01-31 22:47:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions. [2022-01-31 22:47:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 22:47:53,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:53,081 INFO L514 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] [2022-01-31 22:47:53,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:47:53,081 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:53,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1137075757, now seen corresponding path program 1 times [2022-01-31 22:47:53,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:53,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490990964] [2022-01-31 22:47:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:53,097 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:53,097 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:53,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:53,100 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:53,247 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:53,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490990964] [2022-01-31 22:47:53,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [490990964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:53,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:53,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:47:53,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392480258] [2022-01-31 22:47:53,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:53,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:47:53,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:53,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:47:53,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:47:53,250 INFO L87 Difference]: Start difference. First operand 172 states and 265 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) [2022-01-31 22:47:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:55,179 INFO L93 Difference]: Finished difference Result 334 states and 513 transitions. [2022-01-31 22:47:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:47:55,179 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 [2022-01-31 22:47:55,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:55,180 INFO L225 Difference]: With dead ends: 334 [2022-01-31 22:47:55,180 INFO L226 Difference]: Without dead ends: 188 [2022-01-31 22:47:55,181 INFO L932 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 [2022-01-31 22:47:55,182 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:55,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 22:47:55,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-01-31 22:47:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2022-01-31 22:47:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5568862275449102) internal successors, (260), 167 states have internal predecessors, (260), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 264 transitions. [2022-01-31 22:47:55,195 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 264 transitions. Word has length 64 [2022-01-31 22:47:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:55,195 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 264 transitions. [2022-01-31 22:47:55,195 INFO L471 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) [2022-01-31 22:47:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 264 transitions. [2022-01-31 22:47:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 22:47:55,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:55,196 INFO L514 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] [2022-01-31 22:47:55,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:47:55,197 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:55,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash 749827687, now seen corresponding path program 1 times [2022-01-31 22:47:55,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:55,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103398820] [2022-01-31 22:47:55,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:55,205 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:55,205 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:55,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:55,208 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:55,309 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:55,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103398820] [2022-01-31 22:47:55,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2103398820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:55,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:55,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:47:55,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801218670] [2022-01-31 22:47:55,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:55,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:47:55,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:55,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:47:55,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:47:55,310 INFO L87 Difference]: Start difference. First operand 172 states and 264 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) [2022-01-31 22:47:57,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:57,983 INFO L93 Difference]: Finished difference Result 334 states and 512 transitions. [2022-01-31 22:47:57,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:47:57,983 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 [2022-01-31 22:47:57,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:57,984 INFO L225 Difference]: With dead ends: 334 [2022-01-31 22:47:57,984 INFO L226 Difference]: Without dead ends: 188 [2022-01-31 22:47:57,985 INFO L932 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 [2022-01-31 22:47:57,986 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 26 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:57,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:47:57,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-01-31 22:47:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2022-01-31 22:47:58,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5508982035928143) internal successors, (259), 167 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) [2022-01-31 22:47:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2022-01-31 22:47:58,003 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 64 [2022-01-31 22:47:58,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:58,004 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2022-01-31 22:47:58,004 INFO L471 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) [2022-01-31 22:47:58,004 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2022-01-31 22:47:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 22:47:58,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:58,005 INFO L514 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] [2022-01-31 22:47:58,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 22:47:58,005 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:58,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:58,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1864834526, now seen corresponding path program 1 times [2022-01-31 22:47:58,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:58,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832065012] [2022-01-31 22:47:58,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:58,015 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:58,015 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:58,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:58,018 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:58,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:58,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:58,120 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:58,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832065012] [2022-01-31 22:47:58,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [832065012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:58,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:58,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:47:58,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729810353] [2022-01-31 22:47:58,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:58,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:47:58,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:58,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:47:58,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:47:58,122 INFO L87 Difference]: Start difference. First operand 172 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) [2022-01-31 22:48:00,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:00,985 INFO L93 Difference]: Finished difference Result 332 states and 509 transitions. [2022-01-31 22:48:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:00,985 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 [2022-01-31 22:48:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:00,986 INFO L225 Difference]: With dead ends: 332 [2022-01-31 22:48:00,986 INFO L226 Difference]: Without dead ends: 186 [2022-01-31 22:48:00,987 INFO L932 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 [2022-01-31 22:48:00,988 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 20 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:00,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 507 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 22:48:00,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-01-31 22:48:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 172. [2022-01-31 22:48:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5449101796407185) internal successors, (258), 167 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) [2022-01-31 22:48:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 262 transitions. [2022-01-31 22:48:00,993 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 262 transitions. Word has length 64 [2022-01-31 22:48:00,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:00,994 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 262 transitions. [2022-01-31 22:48:00,994 INFO L471 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) [2022-01-31 22:48:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 262 transitions. [2022-01-31 22:48:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 22:48:00,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:00,995 INFO L514 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] [2022-01-31 22:48:00,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 22:48:00,995 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:00,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1932394527, now seen corresponding path program 1 times [2022-01-31 22:48:00,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:00,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134296742] [2022-01-31 22:48:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:00,997 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:00,998 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:00,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:01,000 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:01,085 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:01,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134296742] [2022-01-31 22:48:01,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [134296742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:01,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:01,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:01,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400927324] [2022-01-31 22:48:01,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:01,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:01,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:01,088 INFO L87 Difference]: Start difference. First operand 172 states and 262 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) [2022-01-31 22:48:03,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:04,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:04,541 INFO L93 Difference]: Finished difference Result 331 states and 507 transitions. [2022-01-31 22:48:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:04,541 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 [2022-01-31 22:48:04,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:04,542 INFO L225 Difference]: With dead ends: 331 [2022-01-31 22:48:04,542 INFO L226 Difference]: Without dead ends: 185 [2022-01-31 22:48:04,543 INFO L932 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 [2022-01-31 22:48:04,543 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 18 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 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, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:04,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:48:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-01-31 22:48:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 172. [2022-01-31 22:48:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5389221556886228) internal successors, (257), 167 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) [2022-01-31 22:48:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 261 transitions. [2022-01-31 22:48:04,549 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 261 transitions. Word has length 64 [2022-01-31 22:48:04,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:04,549 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 261 transitions. [2022-01-31 22:48:04,549 INFO L471 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) [2022-01-31 22:48:04,549 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 261 transitions. [2022-01-31 22:48:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 22:48:04,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:04,550 INFO L514 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] [2022-01-31 22:48:04,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 22:48:04,550 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:04,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:04,550 INFO L85 PathProgramCache]: Analyzing trace with hash -165707508, now seen corresponding path program 1 times [2022-01-31 22:48:04,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:04,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078330321] [2022-01-31 22:48:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:04,556 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:04,556 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:04,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:04,568 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:04,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:04,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:04,664 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:04,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078330321] [2022-01-31 22:48:04,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1078330321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:04,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:04,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:04,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306587185] [2022-01-31 22:48:04,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:04,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:04,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:04,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:04,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:04,666 INFO L87 Difference]: Start difference. First operand 172 states and 261 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) [2022-01-31 22:48:07,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:08,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:08,090 INFO L93 Difference]: Finished difference Result 331 states and 506 transitions. [2022-01-31 22:48:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:08,090 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 [2022-01-31 22:48:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:08,091 INFO L225 Difference]: With dead ends: 331 [2022-01-31 22:48:08,092 INFO L226 Difference]: Without dead ends: 185 [2022-01-31 22:48:08,092 INFO L932 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 [2022-01-31 22:48:08,093 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 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, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:08,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:48:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-01-31 22:48:08,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 172. [2022-01-31 22:48:08,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.532934131736527) internal successors, (256), 167 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) [2022-01-31 22:48:08,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 260 transitions. [2022-01-31 22:48:08,098 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 260 transitions. Word has length 65 [2022-01-31 22:48:08,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:08,098 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 260 transitions. [2022-01-31 22:48:08,098 INFO L471 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) [2022-01-31 22:48:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 260 transitions. [2022-01-31 22:48:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 22:48:08,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:08,099 INFO L514 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] [2022-01-31 22:48:08,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 22:48:08,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:08,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1512732084, now seen corresponding path program 1 times [2022-01-31 22:48:08,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:08,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498855380] [2022-01-31 22:48:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:08,105 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:08,105 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:08,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:08,108 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:08,239 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:08,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498855380] [2022-01-31 22:48:08,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1498855380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:08,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:08,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:08,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682626865] [2022-01-31 22:48:08,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:08,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:08,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:08,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:08,244 INFO L87 Difference]: Start difference. First operand 172 states and 260 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) [2022-01-31 22:48:10,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:10,588 INFO L93 Difference]: Finished difference Result 437 states and 674 transitions. [2022-01-31 22:48:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:10,588 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 [2022-01-31 22:48:10,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:10,590 INFO L225 Difference]: With dead ends: 437 [2022-01-31 22:48:10,590 INFO L226 Difference]: Without dead ends: 291 [2022-01-31 22:48:10,590 INFO L932 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 [2022-01-31 22:48:10,591 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 149 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 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, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:10,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 22:48:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-01-31 22:48:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 186. [2022-01-31 22:48:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.5248618784530388) internal successors, (276), 181 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:10,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 280 transitions. [2022-01-31 22:48:10,597 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 280 transitions. Word has length 66 [2022-01-31 22:48:10,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:10,597 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 280 transitions. [2022-01-31 22:48:10,597 INFO L471 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) [2022-01-31 22:48:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 280 transitions. [2022-01-31 22:48:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 22:48:10,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:10,598 INFO L514 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] [2022-01-31 22:48:10,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 22:48:10,598 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:10,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:10,599 INFO L85 PathProgramCache]: Analyzing trace with hash 943941713, now seen corresponding path program 1 times [2022-01-31 22:48:10,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:10,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966476961] [2022-01-31 22:48:10,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:10,604 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:10,604 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:10,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:10,607 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:10,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:10,708 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:10,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966476961] [2022-01-31 22:48:10,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [966476961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:10,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:10,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:10,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386322932] [2022-01-31 22:48:10,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:10,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:10,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:10,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:10,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:10,709 INFO L87 Difference]: Start difference. First operand 186 states and 280 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) [2022-01-31 22:48:12,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:14,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:14,520 INFO L93 Difference]: Finished difference Result 349 states and 533 transitions. [2022-01-31 22:48:14,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:14,521 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 [2022-01-31 22:48:14,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:14,522 INFO L225 Difference]: With dead ends: 349 [2022-01-31 22:48:14,522 INFO L226 Difference]: Without dead ends: 189 [2022-01-31 22:48:14,522 INFO L932 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 [2022-01-31 22:48:14,523 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 11 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:14,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 523 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 22:48:14,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-01-31 22:48:14,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2022-01-31 22:48:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.5193370165745856) internal successors, (275), 181 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:14,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 279 transitions. [2022-01-31 22:48:14,528 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 279 transitions. Word has length 67 [2022-01-31 22:48:14,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:14,528 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 279 transitions. [2022-01-31 22:48:14,528 INFO L471 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) [2022-01-31 22:48:14,529 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 279 transitions. [2022-01-31 22:48:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 22:48:14,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:14,529 INFO L514 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] [2022-01-31 22:48:14,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 22:48:14,529 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash -116628358, now seen corresponding path program 1 times [2022-01-31 22:48:14,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:14,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016129100] [2022-01-31 22:48:14,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:14,533 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:14,534 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:14,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:14,537 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:14,620 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:14,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016129100] [2022-01-31 22:48:14,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1016129100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:14,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:14,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:14,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014230354] [2022-01-31 22:48:14,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:14,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:14,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:14,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:14,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:14,621 INFO L87 Difference]: Start difference. First operand 186 states and 279 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) [2022-01-31 22:48:17,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:17,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:17,837 INFO L93 Difference]: Finished difference Result 468 states and 717 transitions. [2022-01-31 22:48:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:17,838 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 [2022-01-31 22:48:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:17,839 INFO L225 Difference]: With dead ends: 468 [2022-01-31 22:48:17,839 INFO L226 Difference]: Without dead ends: 308 [2022-01-31 22:48:17,839 INFO L932 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 [2022-01-31 22:48:17,840 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 124 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 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, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:17,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 22:48:17,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-01-31 22:48:17,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 228. [2022-01-31 22:48:17,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5695067264573992) internal successors, (350), 223 states have internal predecessors, (350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 354 transitions. [2022-01-31 22:48:17,847 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 354 transitions. Word has length 67 [2022-01-31 22:48:17,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:17,847 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 354 transitions. [2022-01-31 22:48:17,847 INFO L471 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) [2022-01-31 22:48:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 354 transitions. [2022-01-31 22:48:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 22:48:17,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:17,848 INFO L514 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] [2022-01-31 22:48:17,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 22:48:17,848 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:17,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:17,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1271474916, now seen corresponding path program 1 times [2022-01-31 22:48:17,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:17,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878356653] [2022-01-31 22:48:17,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:17,852 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:17,852 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:17,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:17,855 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:17,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:17,934 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:17,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878356653] [2022-01-31 22:48:17,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1878356653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:17,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:17,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:17,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165846319] [2022-01-31 22:48:17,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:17,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:17,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:17,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:17,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:17,936 INFO L87 Difference]: Start difference. First operand 228 states and 354 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) [2022-01-31 22:48:18,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:20,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:23,034 INFO L93 Difference]: Finished difference Result 473 states and 742 transitions. [2022-01-31 22:48:23,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:23,034 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 [2022-01-31 22:48:23,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:23,035 INFO L225 Difference]: With dead ends: 473 [2022-01-31 22:48:23,035 INFO L226 Difference]: Without dead ends: 271 [2022-01-31 22:48:23,036 INFO L932 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 [2022-01-31 22:48:23,036 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 32 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:23,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 521 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 22:48:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-01-31 22:48:23,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 250. [2022-01-31 22:48:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.5755102040816327) internal successors, (386), 245 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:23,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 390 transitions. [2022-01-31 22:48:23,044 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 390 transitions. Word has length 68 [2022-01-31 22:48:23,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:23,045 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 390 transitions. [2022-01-31 22:48:23,045 INFO L471 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) [2022-01-31 22:48:23,045 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 390 transitions. [2022-01-31 22:48:23,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 22:48:23,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:23,045 INFO L514 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] [2022-01-31 22:48:23,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 22:48:23,046 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:23,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:23,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1444944660, now seen corresponding path program 1 times [2022-01-31 22:48:23,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:23,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253563038] [2022-01-31 22:48:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:23,063 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:23,063 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:23,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:23,067 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:23,155 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:23,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253563038] [2022-01-31 22:48:23,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1253563038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:23,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:23,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:23,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540713517] [2022-01-31 22:48:23,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:23,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:23,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:23,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:23,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:23,157 INFO L87 Difference]: Start difference. First operand 250 states and 390 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) [2022-01-31 22:48:24,443 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 [] [2022-01-31 22:48:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:26,845 INFO L93 Difference]: Finished difference Result 487 states and 766 transitions. [2022-01-31 22:48:26,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:26,847 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 [2022-01-31 22:48:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:26,849 INFO L225 Difference]: With dead ends: 487 [2022-01-31 22:48:26,849 INFO L226 Difference]: Without dead ends: 263 [2022-01-31 22:48:26,849 INFO L932 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 [2022-01-31 22:48:26,849 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 21 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:26,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 594 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:48:26,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-01-31 22:48:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 250. [2022-01-31 22:48:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.5714285714285714) internal successors, (385), 245 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 389 transitions. [2022-01-31 22:48:26,857 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 389 transitions. Word has length 82 [2022-01-31 22:48:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:26,858 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 389 transitions. [2022-01-31 22:48:26,858 INFO L471 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) [2022-01-31 22:48:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 389 transitions. [2022-01-31 22:48:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 22:48:26,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:26,859 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:48:26,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 22:48:26,859 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:26,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash 14882921, now seen corresponding path program 1 times [2022-01-31 22:48:26,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:26,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718157524] [2022-01-31 22:48:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:26,869 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:26,869 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:26,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:26,872 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:26,955 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:26,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718157524] [2022-01-31 22:48:26,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [718157524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:26,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:26,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:26,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914517446] [2022-01-31 22:48:26,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:26,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:26,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:26,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:26,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:26,957 INFO L87 Difference]: Start difference. First operand 250 states and 389 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) [2022-01-31 22:48:29,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:29,904 INFO L93 Difference]: Finished difference Result 577 states and 907 transitions. [2022-01-31 22:48:29,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:29,904 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 [2022-01-31 22:48:29,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:29,905 INFO L225 Difference]: With dead ends: 577 [2022-01-31 22:48:29,905 INFO L226 Difference]: Without dead ends: 353 [2022-01-31 22:48:29,906 INFO L932 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 [2022-01-31 22:48:29,906 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 146 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:29,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 22:48:29,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-01-31 22:48:29,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 251. [2022-01-31 22:48:29,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5609756097560976) internal successors, (384), 246 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:29,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 388 transitions. [2022-01-31 22:48:29,914 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 388 transitions. Word has length 82 [2022-01-31 22:48:29,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:29,914 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 388 transitions. [2022-01-31 22:48:29,914 INFO L471 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) [2022-01-31 22:48:29,914 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 388 transitions. [2022-01-31 22:48:29,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 22:48:29,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:29,916 INFO L514 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] [2022-01-31 22:48:29,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 22:48:29,916 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2109242952, now seen corresponding path program 1 times [2022-01-31 22:48:29,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:29,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138553716] [2022-01-31 22:48:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:29,926 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:29,926 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:29,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:29,930 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:29,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:30,002 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:30,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138553716] [2022-01-31 22:48:30,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1138553716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:30,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:30,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:30,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877281215] [2022-01-31 22:48:30,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:30,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:30,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:30,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:30,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:30,003 INFO L87 Difference]: Start difference. First operand 251 states and 388 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) [2022-01-31 22:48:31,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:33,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:34,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:35,578 INFO L93 Difference]: Finished difference Result 494 states and 770 transitions. [2022-01-31 22:48:35,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:35,578 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 [2022-01-31 22:48:35,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:35,579 INFO L225 Difference]: With dead ends: 494 [2022-01-31 22:48:35,579 INFO L226 Difference]: Without dead ends: 269 [2022-01-31 22:48:35,580 INFO L932 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 [2022-01-31 22:48:35,580 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 34 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:35,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 527 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-01-31 22:48:35,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-01-31 22:48:35,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 251. [2022-01-31 22:48:35,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.556910569105691) internal successors, (383), 246 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:35,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 387 transitions. [2022-01-31 22:48:35,588 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 387 transitions. Word has length 82 [2022-01-31 22:48:35,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:35,588 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 387 transitions. [2022-01-31 22:48:35,588 INFO L471 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) [2022-01-31 22:48:35,588 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 387 transitions. [2022-01-31 22:48:35,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 22:48:35,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:35,589 INFO L514 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] [2022-01-31 22:48:35,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 22:48:35,589 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:35,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:35,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1130143569, now seen corresponding path program 1 times [2022-01-31 22:48:35,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:35,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333785977] [2022-01-31 22:48:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:35,612 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:35,612 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:35,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:35,616 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:35,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:35,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:35,705 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:35,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333785977] [2022-01-31 22:48:35,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1333785977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:35,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:35,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:48:35,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946383292] [2022-01-31 22:48:35,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:35,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:48:35,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:35,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:48:35,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:48:35,706 INFO L87 Difference]: Start difference. First operand 251 states and 387 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) [2022-01-31 22:48:37,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:38,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:41,221 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 [] [2022-01-31 22:48:41,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:41,591 INFO L93 Difference]: Finished difference Result 485 states and 756 transitions. [2022-01-31 22:48:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:48:41,591 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 [2022-01-31 22:48:41,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:41,592 INFO L225 Difference]: With dead ends: 485 [2022-01-31 22:48:41,592 INFO L226 Difference]: Without dead ends: 260 [2022-01-31 22:48:41,593 INFO L932 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 [2022-01-31 22:48:41,594 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:41,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 22:48:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-01-31 22:48:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2022-01-31 22:48:41,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5450980392156863) internal successors, (394), 255 states have internal predecessors, (394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 398 transitions. [2022-01-31 22:48:41,601 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 398 transitions. Word has length 83 [2022-01-31 22:48:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:41,601 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 398 transitions. [2022-01-31 22:48:41,601 INFO L471 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) [2022-01-31 22:48:41,601 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 398 transitions. [2022-01-31 22:48:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 22:48:41,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:41,602 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:48:41,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 22:48:41,602 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:41,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1968154341, now seen corresponding path program 1 times [2022-01-31 22:48:41,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:41,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042483524] [2022-01-31 22:48:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:41,615 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:41,615 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:41,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:41,619 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:41,692 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:41,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042483524] [2022-01-31 22:48:41,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1042483524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:41,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:41,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:41,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793045288] [2022-01-31 22:48:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:41,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:41,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:41,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:41,693 INFO L87 Difference]: Start difference. First operand 260 states and 398 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:43,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:44,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:44,623 INFO L93 Difference]: Finished difference Result 605 states and 934 transitions. [2022-01-31 22:48:44,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:44,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-01-31 22:48:44,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:44,625 INFO L225 Difference]: With dead ends: 605 [2022-01-31 22:48:44,625 INFO L226 Difference]: Without dead ends: 371 [2022-01-31 22:48:44,626 INFO L932 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 [2022-01-31 22:48:44,626 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 150 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:44,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 22:48:44,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-01-31 22:48:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 260. [2022-01-31 22:48:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5294117647058822) internal successors, (390), 255 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 394 transitions. [2022-01-31 22:48:44,636 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 394 transitions. Word has length 83 [2022-01-31 22:48:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:44,636 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 394 transitions. [2022-01-31 22:48:44,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 394 transitions. [2022-01-31 22:48:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 22:48:44,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:44,637 INFO L514 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] [2022-01-31 22:48:44,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 22:48:44,637 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1885868468, now seen corresponding path program 1 times [2022-01-31 22:48:44,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:44,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405437390] [2022-01-31 22:48:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:44,648 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:44,648 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:44,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:44,679 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:44,753 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:44,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405437390] [2022-01-31 22:48:44,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1405437390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:44,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:44,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:44,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349623013] [2022-01-31 22:48:44,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:44,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:44,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:44,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:44,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:44,754 INFO L87 Difference]: Start difference. First operand 260 states and 394 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) [2022-01-31 22:48:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:47,286 INFO L93 Difference]: Finished difference Result 605 states and 926 transitions. [2022-01-31 22:48:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:47,286 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 [2022-01-31 22:48:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:47,288 INFO L225 Difference]: With dead ends: 605 [2022-01-31 22:48:47,288 INFO L226 Difference]: Without dead ends: 371 [2022-01-31 22:48:47,288 INFO L932 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 [2022-01-31 22:48:47,289 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 148 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:47,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 22:48:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-01-31 22:48:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 260. [2022-01-31 22:48:47,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5137254901960784) internal successors, (386), 255 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 390 transitions. [2022-01-31 22:48:47,298 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 390 transitions. Word has length 84 [2022-01-31 22:48:47,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:47,298 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 390 transitions. [2022-01-31 22:48:47,298 INFO L471 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) [2022-01-31 22:48:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 390 transitions. [2022-01-31 22:48:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-31 22:48:47,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:47,299 INFO L514 BasicCegarLoop]: trace histogram [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, 1] [2022-01-31 22:48:47,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 22:48:47,299 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:47,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash 459071505, now seen corresponding path program 1 times [2022-01-31 22:48:47,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:47,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234465135] [2022-01-31 22:48:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:47,310 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:47,310 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:47,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:47,314 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:47,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:47,386 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:47,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234465135] [2022-01-31 22:48:47,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1234465135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:47,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:47,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:47,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167829158] [2022-01-31 22:48:47,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:47,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:47,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:47,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:47,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:47,388 INFO L87 Difference]: Start difference. First operand 260 states and 390 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:48,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:50,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:52,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:54,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:54,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:54,409 INFO L93 Difference]: Finished difference Result 511 states and 772 transitions. [2022-01-31 22:48:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-01-31 22:48:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:54,410 INFO L225 Difference]: With dead ends: 511 [2022-01-31 22:48:54,410 INFO L226 Difference]: Without dead ends: 277 [2022-01-31 22:48:54,411 INFO L932 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 [2022-01-31 22:48:54,411 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:54,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-01-31 22:48:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-01-31 22:48:54,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 260. [2022-01-31 22:48:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5098039215686274) internal successors, (385), 255 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 389 transitions. [2022-01-31 22:48:54,419 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 389 transitions. Word has length 86 [2022-01-31 22:48:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:54,420 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 389 transitions. [2022-01-31 22:48:54,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 389 transitions. [2022-01-31 22:48:54,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-31 22:48:54,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:54,420 INFO L514 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] [2022-01-31 22:48:54,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 22:48:54,421 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:54,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:54,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1846566073, now seen corresponding path program 1 times [2022-01-31 22:48:54,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:54,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055554544] [2022-01-31 22:48:54,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:54,429 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:54,429 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:54,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:54,442 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:54,533 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:54,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055554544] [2022-01-31 22:48:54,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1055554544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:54,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:54,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:54,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950586988] [2022-01-31 22:48:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:54,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:54,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:54,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:54,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:54,534 INFO L87 Difference]: Start difference. First operand 260 states and 389 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) [2022-01-31 22:48:56,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:58,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:48:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:48:59,580 INFO L93 Difference]: Finished difference Result 602 states and 909 transitions. [2022-01-31 22:48:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:48:59,580 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 [2022-01-31 22:48:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:48:59,581 INFO L225 Difference]: With dead ends: 602 [2022-01-31 22:48:59,581 INFO L226 Difference]: Without dead ends: 368 [2022-01-31 22:48:59,582 INFO L932 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 [2022-01-31 22:48:59,582 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 83 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:48:59,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 515 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 22:48:59,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-01-31 22:48:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 302. [2022-01-31 22:48:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 297 states have (on average 1.531986531986532) internal successors, (455), 297 states have internal predecessors, (455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:48:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 459 transitions. [2022-01-31 22:48:59,592 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 459 transitions. Word has length 90 [2022-01-31 22:48:59,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:48:59,593 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 459 transitions. [2022-01-31 22:48:59,593 INFO L471 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) [2022-01-31 22:48:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 459 transitions. [2022-01-31 22:48:59,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-31 22:48:59,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:48:59,593 INFO L514 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] [2022-01-31 22:48:59,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 22:48:59,594 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:48:59,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:48:59,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2094712567, now seen corresponding path program 1 times [2022-01-31 22:48:59,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:48:59,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586421920] [2022-01-31 22:48:59,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:48:59,602 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:48:59,602 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:48:59,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:48:59,607 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:48:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:59,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:48:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:48:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:48:59,717 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:48:59,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586421920] [2022-01-31 22:48:59,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1586421920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:48:59,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:48:59,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:48:59,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602523015] [2022-01-31 22:48:59,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:48:59,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:48:59,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:48:59,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:48:59,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:48:59,718 INFO L87 Difference]: Start difference. First operand 302 states and 459 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) [2022-01-31 22:49:02,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:02,892 INFO L93 Difference]: Finished difference Result 689 states and 1056 transitions. [2022-01-31 22:49:02,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:02,893 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 [2022-01-31 22:49:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:02,894 INFO L225 Difference]: With dead ends: 689 [2022-01-31 22:49:02,894 INFO L226 Difference]: Without dead ends: 413 [2022-01-31 22:49:02,895 INFO L932 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 [2022-01-31 22:49:02,897 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 120 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:02,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 384 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:49:02,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-01-31 22:49:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 283. [2022-01-31 22:49:02,916 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) [2022-01-31 22:49:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 434 transitions. [2022-01-31 22:49:02,916 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 434 transitions. Word has length 90 [2022-01-31 22:49:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:02,917 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 434 transitions. [2022-01-31 22:49:02,917 INFO L471 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) [2022-01-31 22:49:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 434 transitions. [2022-01-31 22:49:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-31 22:49:02,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:02,918 INFO L514 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] [2022-01-31 22:49:02,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 22:49:02,918 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:02,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:02,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1885087564, now seen corresponding path program 1 times [2022-01-31 22:49:02,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:02,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880799877] [2022-01-31 22:49:02,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:02,932 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:02,932 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:02,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:02,937 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:03,026 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:03,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880799877] [2022-01-31 22:49:03,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [880799877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:03,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:03,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:03,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132138517] [2022-01-31 22:49:03,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:03,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:03,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:03,027 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) [2022-01-31 22:49:05,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:07,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:08,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:08,423 INFO L93 Difference]: Finished difference Result 645 states and 994 transitions. [2022-01-31 22:49:08,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:08,424 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 [2022-01-31 22:49:08,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:08,425 INFO L225 Difference]: With dead ends: 645 [2022-01-31 22:49:08,425 INFO L226 Difference]: Without dead ends: 388 [2022-01-31 22:49:08,426 INFO L932 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 [2022-01-31 22:49:08,426 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 89 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:08,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 521 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-01-31 22:49:08,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-01-31 22:49:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 317. [2022-01-31 22:49:08,437 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) [2022-01-31 22:49:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 489 transitions. [2022-01-31 22:49:08,437 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 489 transitions. Word has length 118 [2022-01-31 22:49:08,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:08,438 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 489 transitions. [2022-01-31 22:49:08,438 INFO L471 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) [2022-01-31 22:49:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 489 transitions. [2022-01-31 22:49:08,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-31 22:49:08,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:08,438 INFO L514 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] [2022-01-31 22:49:08,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 22:49:08,439 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash -501421942, now seen corresponding path program 1 times [2022-01-31 22:49:08,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:08,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713669054] [2022-01-31 22:49:08,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:08,452 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:08,452 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:08,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:08,457 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:08,548 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:08,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713669054] [2022-01-31 22:49:08,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [713669054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:08,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:08,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:08,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492126476] [2022-01-31 22:49:08,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:08,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:08,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:08,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:08,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:08,550 INFO L87 Difference]: Start difference. First operand 317 states and 489 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) [2022-01-31 22:49:10,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:12,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:13,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:13,121 INFO L93 Difference]: Finished difference Result 772 states and 1202 transitions. [2022-01-31 22:49:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:13,122 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 [2022-01-31 22:49:13,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:13,123 INFO L225 Difference]: With dead ends: 772 [2022-01-31 22:49:13,123 INFO L226 Difference]: Without dead ends: 481 [2022-01-31 22:49:13,124 INFO L932 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 [2022-01-31 22:49:13,124 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 126 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:13,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 396 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 22:49:13,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-01-31 22:49:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 347. [2022-01-31 22:49:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.567251461988304) internal successors, (536), 342 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 540 transitions. [2022-01-31 22:49:13,139 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 540 transitions. Word has length 118 [2022-01-31 22:49:13,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:13,139 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 540 transitions. [2022-01-31 22:49:13,139 INFO L471 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) [2022-01-31 22:49:13,139 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 540 transitions. [2022-01-31 22:49:13,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 22:49:13,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:13,140 INFO L514 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] [2022-01-31 22:49:13,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 22:49:13,140 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:13,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:13,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1112383005, now seen corresponding path program 1 times [2022-01-31 22:49:13,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:13,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558352359] [2022-01-31 22:49:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:13,161 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:13,161 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:13,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:13,167 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:13,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:13,245 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:13,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558352359] [2022-01-31 22:49:13,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [558352359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:13,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:13,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:13,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226220998] [2022-01-31 22:49:13,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:13,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:13,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:13,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:13,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:13,247 INFO L87 Difference]: Start difference. First operand 347 states and 540 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) [2022-01-31 22:49:14,715 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 [] [2022-01-31 22:49:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:16,713 INFO L93 Difference]: Finished difference Result 746 states and 1160 transitions. [2022-01-31 22:49:16,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:16,713 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 [2022-01-31 22:49:16,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:16,715 INFO L225 Difference]: With dead ends: 746 [2022-01-31 22:49:16,715 INFO L226 Difference]: Without dead ends: 425 [2022-01-31 22:49:16,715 INFO L932 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 [2022-01-31 22:49:16,716 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 148 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:16,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 362 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:49:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-01-31 22:49:16,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 347. [2022-01-31 22:49:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5497076023391814) internal successors, (530), 342 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:16,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 534 transitions. [2022-01-31 22:49:16,745 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 534 transitions. Word has length 123 [2022-01-31 22:49:16,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:16,745 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 534 transitions. [2022-01-31 22:49:16,745 INFO L471 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) [2022-01-31 22:49:16,746 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 534 transitions. [2022-01-31 22:49:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 22:49:16,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:16,746 INFO L514 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] [2022-01-31 22:49:16,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 22:49:16,747 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:16,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:16,747 INFO L85 PathProgramCache]: Analyzing trace with hash -336492130, now seen corresponding path program 1 times [2022-01-31 22:49:16,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:16,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182153840] [2022-01-31 22:49:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:16,770 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:16,770 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:16,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:16,775 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:16,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:16,881 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:16,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182153840] [2022-01-31 22:49:16,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [182153840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:16,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:16,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:16,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822329458] [2022-01-31 22:49:16,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:16,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:16,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:16,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:16,882 INFO L87 Difference]: Start difference. First operand 347 states and 534 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) [2022-01-31 22:49:19,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:19,344 INFO L93 Difference]: Finished difference Result 786 states and 1214 transitions. [2022-01-31 22:49:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:19,345 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 [2022-01-31 22:49:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:19,346 INFO L225 Difference]: With dead ends: 786 [2022-01-31 22:49:19,346 INFO L226 Difference]: Without dead ends: 465 [2022-01-31 22:49:19,347 INFO L932 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 [2022-01-31 22:49:19,347 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 121 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:19,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 362 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:49:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-01-31 22:49:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 384. [2022-01-31 22:49:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5567282321899736) internal successors, (590), 379 states have internal predecessors, (590), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:19,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 594 transitions. [2022-01-31 22:49:19,363 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 594 transitions. Word has length 123 [2022-01-31 22:49:19,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:19,363 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 594 transitions. [2022-01-31 22:49:19,364 INFO L471 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) [2022-01-31 22:49:19,364 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 594 transitions. [2022-01-31 22:49:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 22:49:19,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:19,364 INFO L514 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] [2022-01-31 22:49:19,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 22:49:19,365 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:19,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:19,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1416201914, now seen corresponding path program 1 times [2022-01-31 22:49:19,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:19,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087244658] [2022-01-31 22:49:19,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:19,384 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:19,385 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:19,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:19,390 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:19,483 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:19,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087244658] [2022-01-31 22:49:19,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1087244658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:19,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:19,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:19,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116074647] [2022-01-31 22:49:19,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:19,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:19,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:19,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:19,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:19,484 INFO L87 Difference]: Start difference. First operand 384 states and 594 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) [2022-01-31 22:49:21,187 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 [] [2022-01-31 22:49:22,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:22,694 INFO L93 Difference]: Finished difference Result 835 states and 1297 transitions. [2022-01-31 22:49:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:22,694 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 [2022-01-31 22:49:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:22,695 INFO L225 Difference]: With dead ends: 835 [2022-01-31 22:49:22,695 INFO L226 Difference]: Without dead ends: 477 [2022-01-31 22:49:22,696 INFO L932 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 [2022-01-31 22:49:22,697 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 79 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:22,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 493 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 22:49:22,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-01-31 22:49:22,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 424. [2022-01-31 22:49:22,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 419 states have (on average 1.5608591885441527) internal successors, (654), 419 states have internal predecessors, (654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:22,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 658 transitions. [2022-01-31 22:49:22,718 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 658 transitions. Word has length 124 [2022-01-31 22:49:22,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:22,718 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 658 transitions. [2022-01-31 22:49:22,718 INFO L471 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) [2022-01-31 22:49:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 658 transitions. [2022-01-31 22:49:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 22:49:22,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:22,720 INFO L514 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] [2022-01-31 22:49:22,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 22:49:22,720 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash -661134984, now seen corresponding path program 1 times [2022-01-31 22:49:22,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:22,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983085533] [2022-01-31 22:49:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:22,736 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:22,736 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:22,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:22,741 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:22,819 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:22,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983085533] [2022-01-31 22:49:22,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [983085533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:22,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:22,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:22,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663515659] [2022-01-31 22:49:22,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:22,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:22,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:22,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:22,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:22,820 INFO L87 Difference]: Start difference. First operand 424 states and 658 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) [2022-01-31 22:49:25,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:26,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:26,620 INFO L93 Difference]: Finished difference Result 900 states and 1396 transitions. [2022-01-31 22:49:26,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:26,620 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 [2022-01-31 22:49:26,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:26,621 INFO L225 Difference]: With dead ends: 900 [2022-01-31 22:49:26,621 INFO L226 Difference]: Without dead ends: 502 [2022-01-31 22:49:26,622 INFO L932 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 [2022-01-31 22:49:26,623 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 120 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:26,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 362 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 22:49:26,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-01-31 22:49:26,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 384. [2022-01-31 22:49:26,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5514511873350922) internal successors, (588), 379 states have internal predecessors, (588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:26,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 592 transitions. [2022-01-31 22:49:26,639 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 592 transitions. Word has length 124 [2022-01-31 22:49:26,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:26,639 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 592 transitions. [2022-01-31 22:49:26,639 INFO L471 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) [2022-01-31 22:49:26,639 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 592 transitions. [2022-01-31 22:49:26,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-31 22:49:26,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:26,640 INFO L514 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] [2022-01-31 22:49:26,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 22:49:26,640 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:26,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:26,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1840054613, now seen corresponding path program 1 times [2022-01-31 22:49:26,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:26,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107550854] [2022-01-31 22:49:26,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:26,661 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:26,661 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:26,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:26,667 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:26,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:26,742 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:26,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107550854] [2022-01-31 22:49:26,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1107550854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:26,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:26,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:26,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847603397] [2022-01-31 22:49:26,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:26,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:26,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:26,743 INFO L87 Difference]: Start difference. First operand 384 states and 592 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) [2022-01-31 22:49:27,964 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 [] [2022-01-31 22:49:29,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:30,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:31,343 INFO L93 Difference]: Finished difference Result 826 states and 1277 transitions. [2022-01-31 22:49:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:31,343 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 [2022-01-31 22:49:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:31,344 INFO L225 Difference]: With dead ends: 826 [2022-01-31 22:49:31,344 INFO L226 Difference]: Without dead ends: 468 [2022-01-31 22:49:31,345 INFO L932 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 [2022-01-31 22:49:31,345 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 61 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:31,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 499 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 22:49:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-01-31 22:49:31,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 427. [2022-01-31 22:49:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.552132701421801) internal successors, (655), 422 states have internal predecessors, (655), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 659 transitions. [2022-01-31 22:49:31,364 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 659 transitions. Word has length 132 [2022-01-31 22:49:31,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:31,364 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 659 transitions. [2022-01-31 22:49:31,364 INFO L471 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) [2022-01-31 22:49:31,364 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 659 transitions. [2022-01-31 22:49:31,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-31 22:49:31,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:31,365 INFO L514 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] [2022-01-31 22:49:31,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 22:49:31,366 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:31,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:31,366 INFO L85 PathProgramCache]: Analyzing trace with hash 575781737, now seen corresponding path program 1 times [2022-01-31 22:49:31,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:31,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966974749] [2022-01-31 22:49:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:31,386 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:31,386 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:31,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:31,392 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:31,465 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:31,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966974749] [2022-01-31 22:49:31,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1966974749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:31,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:31,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:31,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557742681] [2022-01-31 22:49:31,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:31,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:31,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:31,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:31,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:31,467 INFO L87 Difference]: Start difference. First operand 427 states and 659 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) [2022-01-31 22:49:34,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:35,324 INFO L93 Difference]: Finished difference Result 946 states and 1462 transitions. [2022-01-31 22:49:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:35,325 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 [2022-01-31 22:49:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:35,326 INFO L225 Difference]: With dead ends: 946 [2022-01-31 22:49:35,326 INFO L226 Difference]: Without dead ends: 545 [2022-01-31 22:49:35,327 INFO L932 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 [2022-01-31 22:49:35,328 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 113 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:35,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 363 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 22:49:35,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-01-31 22:49:35,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 470. [2022-01-31 22:49:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 465 states have (on average 1.5569892473118279) internal successors, (724), 465 states have internal predecessors, (724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 728 transitions. [2022-01-31 22:49:35,367 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 728 transitions. Word has length 132 [2022-01-31 22:49:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:35,367 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 728 transitions. [2022-01-31 22:49:35,367 INFO L471 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) [2022-01-31 22:49:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 728 transitions. [2022-01-31 22:49:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-31 22:49:35,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:35,368 INFO L514 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, 1] [2022-01-31 22:49:35,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 22:49:35,369 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:35,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1127912945, now seen corresponding path program 1 times [2022-01-31 22:49:35,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:35,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306881046] [2022-01-31 22:49:35,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:35,390 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:35,391 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:35,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:35,396 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:35,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:35,477 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:35,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306881046] [2022-01-31 22:49:35,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [306881046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:35,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:35,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:35,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749582008] [2022-01-31 22:49:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:35,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:35,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:35,480 INFO L87 Difference]: Start difference. First operand 470 states and 728 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:38,525 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 [] [2022-01-31 22:49:39,943 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 [] [2022-01-31 22:49:40,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:40,374 INFO L93 Difference]: Finished difference Result 992 states and 1536 transitions. [2022-01-31 22:49:40,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:40,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-01-31 22:49:40,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:40,376 INFO L225 Difference]: With dead ends: 992 [2022-01-31 22:49:40,376 INFO L226 Difference]: Without dead ends: 546 [2022-01-31 22:49:40,377 INFO L932 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 [2022-01-31 22:49:40,377 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 114 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:40,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 386 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 22:49:40,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-01-31 22:49:40,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 472. [2022-01-31 22:49:40,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 467 states have (on average 1.556745182012848) internal successors, (727), 467 states have internal predecessors, (727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 731 transitions. [2022-01-31 22:49:40,401 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 731 transitions. Word has length 133 [2022-01-31 22:49:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:40,401 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 731 transitions. [2022-01-31 22:49:40,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:40,401 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 731 transitions. [2022-01-31 22:49:40,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 22:49:40,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:40,402 INFO L514 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] [2022-01-31 22:49:40,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 22:49:40,403 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:40,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1576594501, now seen corresponding path program 1 times [2022-01-31 22:49:40,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:40,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49875532] [2022-01-31 22:49:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:40,437 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:40,437 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:40,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:40,443 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:40,526 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:40,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49875532] [2022-01-31 22:49:40,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [49875532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:40,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:40,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:40,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081244228] [2022-01-31 22:49:40,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:40,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:40,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:40,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:40,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:40,527 INFO L87 Difference]: Start difference. First operand 472 states and 731 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) [2022-01-31 22:49:43,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:43,207 INFO L93 Difference]: Finished difference Result 959 states and 1487 transitions. [2022-01-31 22:49:43,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:43,208 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 [2022-01-31 22:49:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:43,209 INFO L225 Difference]: With dead ends: 959 [2022-01-31 22:49:43,209 INFO L226 Difference]: Without dead ends: 513 [2022-01-31 22:49:43,210 INFO L932 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 [2022-01-31 22:49:43,210 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 71 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:43,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 505 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:49:43,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-01-31 22:49:43,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 472. [2022-01-31 22:49:43,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 467 states have (on average 1.5546038543897216) internal successors, (726), 467 states have internal predecessors, (726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:43,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 730 transitions. [2022-01-31 22:49:43,234 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 730 transitions. Word has length 145 [2022-01-31 22:49:43,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:43,234 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 730 transitions. [2022-01-31 22:49:43,234 INFO L471 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) [2022-01-31 22:49:43,234 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 730 transitions. [2022-01-31 22:49:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 22:49:43,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:43,235 INFO L514 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] [2022-01-31 22:49:43,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 22:49:43,235 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:43,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:43,235 INFO L85 PathProgramCache]: Analyzing trace with hash 24476605, now seen corresponding path program 1 times [2022-01-31 22:49:43,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:43,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126505386] [2022-01-31 22:49:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:43,254 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:43,255 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:43,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:43,261 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:43,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:43,356 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:43,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126505386] [2022-01-31 22:49:43,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [126505386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:43,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:43,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:43,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414913884] [2022-01-31 22:49:43,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:43,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:43,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:43,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:43,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:43,357 INFO L87 Difference]: Start difference. First operand 472 states and 730 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) [2022-01-31 22:49:45,759 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 [] [2022-01-31 22:49:46,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:46,546 INFO L93 Difference]: Finished difference Result 1034 states and 1600 transitions. [2022-01-31 22:49:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:46,546 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 [2022-01-31 22:49:46,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:46,548 INFO L225 Difference]: With dead ends: 1034 [2022-01-31 22:49:46,548 INFO L226 Difference]: Without dead ends: 588 [2022-01-31 22:49:46,549 INFO L932 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 [2022-01-31 22:49:46,549 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 125 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:46,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 388 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:49:46,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-01-31 22:49:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 502. [2022-01-31 22:49:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5472837022132797) internal successors, (769), 497 states have internal predecessors, (769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:46,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 773 transitions. [2022-01-31 22:49:46,577 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 773 transitions. Word has length 145 [2022-01-31 22:49:46,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:46,577 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 773 transitions. [2022-01-31 22:49:46,577 INFO L471 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) [2022-01-31 22:49:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 773 transitions. [2022-01-31 22:49:46,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-31 22:49:46,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:46,578 INFO L514 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] [2022-01-31 22:49:46,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 22:49:46,579 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:46,579 INFO L85 PathProgramCache]: Analyzing trace with hash 766047900, now seen corresponding path program 1 times [2022-01-31 22:49:46,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:46,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281289593] [2022-01-31 22:49:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:46,602 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:46,602 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:46,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:46,609 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:46,703 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:46,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281289593] [2022-01-31 22:49:46,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [281289593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:46,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:46,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:46,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098600270] [2022-01-31 22:49:46,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:46,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:46,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:46,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:46,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:46,704 INFO L87 Difference]: Start difference. First operand 502 states and 773 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) [2022-01-31 22:49:48,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:49,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:51,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:49:51,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:51,540 INFO L93 Difference]: Finished difference Result 1052 states and 1619 transitions. [2022-01-31 22:49:51,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:51,540 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 [2022-01-31 22:49:51,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:51,545 INFO L225 Difference]: With dead ends: 1052 [2022-01-31 22:49:51,545 INFO L226 Difference]: Without dead ends: 576 [2022-01-31 22:49:51,545 INFO L932 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 [2022-01-31 22:49:51,546 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 124 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:51,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 388 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 22:49:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-01-31 22:49:51,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 502. [2022-01-31 22:49:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5331991951710262) internal successors, (762), 497 states have internal predecessors, (762), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 766 transitions. [2022-01-31 22:49:51,575 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 766 transitions. Word has length 146 [2022-01-31 22:49:51,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:51,575 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 766 transitions. [2022-01-31 22:49:51,575 INFO L471 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) [2022-01-31 22:49:51,575 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 766 transitions. [2022-01-31 22:49:51,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 22:49:51,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:51,576 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:49:51,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 22:49:51,577 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:51,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1002473414, now seen corresponding path program 1 times [2022-01-31 22:49:51,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:51,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187410996] [2022-01-31 22:49:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:51,604 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:51,604 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:51,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:51,611 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:51,717 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:51,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187410996] [2022-01-31 22:49:51,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1187410996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:51,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:51,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:51,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674787981] [2022-01-31 22:49:51,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:51,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:51,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:51,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:51,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:51,718 INFO L87 Difference]: Start difference. First operand 502 states and 766 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:54,141 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 [] [2022-01-31 22:49:54,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:54,861 INFO L93 Difference]: Finished difference Result 1007 states and 1542 transitions. [2022-01-31 22:49:54,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:54,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-01-31 22:49:54,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:54,863 INFO L225 Difference]: With dead ends: 1007 [2022-01-31 22:49:54,863 INFO L226 Difference]: Without dead ends: 531 [2022-01-31 22:49:54,864 INFO L932 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 [2022-01-31 22:49:54,864 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 76 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:54,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 515 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:49:54,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-01-31 22:49:54,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 502. [2022-01-31 22:49:54,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5311871227364184) internal successors, (761), 497 states have internal predecessors, (761), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:54,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 765 transitions. [2022-01-31 22:49:54,894 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 765 transitions. Word has length 148 [2022-01-31 22:49:54,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:54,894 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 765 transitions. [2022-01-31 22:49:54,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 765 transitions. [2022-01-31 22:49:54,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 22:49:54,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:54,895 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:49:54,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 22:49:54,895 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:54,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:54,896 INFO L85 PathProgramCache]: Analyzing trace with hash -949769502, now seen corresponding path program 1 times [2022-01-31 22:49:54,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:54,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540685] [2022-01-31 22:49:54,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:54,918 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:54,919 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:54,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:54,925 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:55,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:55,024 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:55,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540685] [2022-01-31 22:49:55,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [540685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:55,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:55,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:55,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493774054] [2022-01-31 22:49:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:55,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:55,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:55,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:55,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:55,025 INFO L87 Difference]: Start difference. First operand 502 states and 765 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:58,456 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 [] [2022-01-31 22:49:58,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:49:58,846 INFO L93 Difference]: Finished difference Result 1007 states and 1540 transitions. [2022-01-31 22:49:58,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:49:58,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-01-31 22:49:58,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:49:58,848 INFO L225 Difference]: With dead ends: 1007 [2022-01-31 22:49:58,848 INFO L226 Difference]: Without dead ends: 531 [2022-01-31 22:49:58,849 INFO L932 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 [2022-01-31 22:49:58,849 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 62 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:49:58,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 543 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 22:49:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-01-31 22:49:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 502. [2022-01-31 22:49:58,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.529175050301811) internal successors, (760), 497 states have internal predecessors, (760), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 764 transitions. [2022-01-31 22:49:58,877 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 764 transitions. Word has length 148 [2022-01-31 22:49:58,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:49:58,877 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 764 transitions. [2022-01-31 22:49:58,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:49:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 764 transitions. [2022-01-31 22:49:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 22:49:58,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:49:58,878 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:49:58,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 22:49:58,878 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:49:58,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:49:58,879 INFO L85 PathProgramCache]: Analyzing trace with hash 895023352, now seen corresponding path program 1 times [2022-01-31 22:49:58,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:49:58,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623794233] [2022-01-31 22:49:58,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:49:58,909 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:49:58,910 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:49:58,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:49:58,916 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:49:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:59,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:49:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:49:59,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:49:59,017 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:49:59,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623794233] [2022-01-31 22:49:59,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [623794233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:49:59,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:49:59,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:49:59,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946409324] [2022-01-31 22:49:59,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:49:59,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:49:59,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:49:59,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:49:59,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:49:59,018 INFO L87 Difference]: Start difference. First operand 502 states and 764 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:01,358 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 [] [2022-01-31 22:50:02,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:02,425 INFO L93 Difference]: Finished difference Result 1042 states and 1588 transitions. [2022-01-31 22:50:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:02,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-01-31 22:50:02,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:02,427 INFO L225 Difference]: With dead ends: 1042 [2022-01-31 22:50:02,427 INFO L226 Difference]: Without dead ends: 566 [2022-01-31 22:50:02,428 INFO L932 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 [2022-01-31 22:50:02,428 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 132 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:02,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:50:02,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-01-31 22:50:02,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 502. [2022-01-31 22:50:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5130784708249496) internal successors, (752), 497 states have internal predecessors, (752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:02,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 756 transitions. [2022-01-31 22:50:02,458 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 756 transitions. Word has length 148 [2022-01-31 22:50:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:02,459 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 756 transitions. [2022-01-31 22:50:02,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:02,459 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 756 transitions. [2022-01-31 22:50:02,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 22:50:02,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:02,460 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:50:02,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 22:50:02,460 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:02,460 INFO L85 PathProgramCache]: Analyzing trace with hash 947727264, now seen corresponding path program 1 times [2022-01-31 22:50:02,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:02,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279718019] [2022-01-31 22:50:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:02,483 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:02,483 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:02,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:02,491 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:02,582 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:02,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279718019] [2022-01-31 22:50:02,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1279718019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:02,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:02,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:02,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726712453] [2022-01-31 22:50:02,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:02,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:02,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:02,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:02,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:02,583 INFO L87 Difference]: Start difference. First operand 502 states and 756 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) [2022-01-31 22:50:04,145 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 [] [2022-01-31 22:50:05,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:05,523 INFO L93 Difference]: Finished difference Result 1014 states and 1534 transitions. [2022-01-31 22:50:05,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:05,523 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 148 [2022-01-31 22:50:05,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:05,525 INFO L225 Difference]: With dead ends: 1014 [2022-01-31 22:50:05,525 INFO L226 Difference]: Without dead ends: 538 [2022-01-31 22:50:05,526 INFO L932 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 [2022-01-31 22:50:05,526 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 26 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:05,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 603 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 22:50:05,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-01-31 22:50:05,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 526. [2022-01-31 22:50:05,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 521 states have (on average 1.510556621880998) internal successors, (787), 521 states have internal predecessors, (787), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:05,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 791 transitions. [2022-01-31 22:50:05,560 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 791 transitions. Word has length 148 [2022-01-31 22:50:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:05,560 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 791 transitions. [2022-01-31 22:50:05,560 INFO L471 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) [2022-01-31 22:50:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 791 transitions. [2022-01-31 22:50:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-31 22:50:05,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:05,561 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:50:05,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 22:50:05,562 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:05,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1823022337, now seen corresponding path program 1 times [2022-01-31 22:50:05,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:05,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690851206] [2022-01-31 22:50:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:05,587 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:05,588 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:05,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:05,595 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:05,689 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:05,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690851206] [2022-01-31 22:50:05,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1690851206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:05,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:05,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:05,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510003517] [2022-01-31 22:50:05,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:05,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:05,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:05,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:05,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:05,692 INFO L87 Difference]: Start difference. First operand 526 states and 791 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) [2022-01-31 22:50:08,441 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 [] [2022-01-31 22:50:08,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:08,868 INFO L93 Difference]: Finished difference Result 1090 states and 1642 transitions. [2022-01-31 22:50:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:08,868 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 [2022-01-31 22:50:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:08,870 INFO L225 Difference]: With dead ends: 1090 [2022-01-31 22:50:08,870 INFO L226 Difference]: Without dead ends: 590 [2022-01-31 22:50:08,871 INFO L932 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 [2022-01-31 22:50:08,871 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 117 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 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, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:08,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 384 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:50:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-01-31 22:50:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 526. [2022-01-31 22:50:08,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 521 states have (on average 1.4952015355086372) internal successors, (779), 521 states have internal predecessors, (779), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 783 transitions. [2022-01-31 22:50:08,902 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 783 transitions. Word has length 149 [2022-01-31 22:50:08,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:08,902 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 783 transitions. [2022-01-31 22:50:08,902 INFO L471 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) [2022-01-31 22:50:08,902 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 783 transitions. [2022-01-31 22:50:08,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 22:50:08,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:08,903 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:50:08,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 22:50:08,903 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:08,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:08,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1741639612, now seen corresponding path program 1 times [2022-01-31 22:50:08,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:08,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583754237] [2022-01-31 22:50:08,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:08,926 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:08,927 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:08,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:08,934 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:09,026 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:09,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583754237] [2022-01-31 22:50:09,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [583754237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:09,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:09,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:09,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666448034] [2022-01-31 22:50:09,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:09,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:09,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:09,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:09,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:09,028 INFO L87 Difference]: Start difference. First operand 526 states and 783 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) [2022-01-31 22:50:11,035 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 [] [2022-01-31 22:50:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:11,467 INFO L93 Difference]: Finished difference Result 1132 states and 1689 transitions. [2022-01-31 22:50:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:11,467 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 155 [2022-01-31 22:50:11,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:11,469 INFO L225 Difference]: With dead ends: 1132 [2022-01-31 22:50:11,469 INFO L226 Difference]: Without dead ends: 632 [2022-01-31 22:50:11,470 INFO L932 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 [2022-01-31 22:50:11,470 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 110 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:11,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 384 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:50:11,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-01-31 22:50:11,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 561. [2022-01-31 22:50:11,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 556 states have (on average 1.4892086330935252) internal successors, (828), 556 states have internal predecessors, (828), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 832 transitions. [2022-01-31 22:50:11,507 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 832 transitions. Word has length 155 [2022-01-31 22:50:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:11,507 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 832 transitions. [2022-01-31 22:50:11,507 INFO L471 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) [2022-01-31 22:50:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 832 transitions. [2022-01-31 22:50:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-31 22:50:11,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:11,509 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:50:11,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 22:50:11,509 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:11,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:11,509 INFO L85 PathProgramCache]: Analyzing trace with hash -697202176, now seen corresponding path program 1 times [2022-01-31 22:50:11,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:11,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075623318] [2022-01-31 22:50:11,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:11,531 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:11,531 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:11,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:11,548 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:11,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:11,622 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:11,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075623318] [2022-01-31 22:50:11,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1075623318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:11,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:11,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:11,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475107800] [2022-01-31 22:50:11,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:11,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:11,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:11,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:11,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:11,623 INFO L87 Difference]: Start difference. First operand 561 states and 832 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) [2022-01-31 22:50:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:14,004 INFO L93 Difference]: Finished difference Result 1160 states and 1724 transitions. [2022-01-31 22:50:14,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:14,004 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 156 [2022-01-31 22:50:14,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:14,006 INFO L225 Difference]: With dead ends: 1160 [2022-01-31 22:50:14,006 INFO L226 Difference]: Without dead ends: 625 [2022-01-31 22:50:14,007 INFO L932 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 [2022-01-31 22:50:14,007 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 109 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:14,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 22:50:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-01-31 22:50:14,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 561. [2022-01-31 22:50:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 556 states have (on average 1.4802158273381294) internal successors, (823), 556 states have internal predecessors, (823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 827 transitions. [2022-01-31 22:50:14,043 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 827 transitions. Word has length 156 [2022-01-31 22:50:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:14,043 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 827 transitions. [2022-01-31 22:50:14,044 INFO L471 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) [2022-01-31 22:50:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 827 transitions. [2022-01-31 22:50:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-31 22:50:14,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:14,045 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:50:14,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 22:50:14,045 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:14,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:14,045 INFO L85 PathProgramCache]: Analyzing trace with hash 469048910, now seen corresponding path program 1 times [2022-01-31 22:50:14,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:14,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493865676] [2022-01-31 22:50:14,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:14,081 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:14,081 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:14,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:14,089 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:14,177 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:14,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493865676] [2022-01-31 22:50:14,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1493865676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:14,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:14,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:14,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782827870] [2022-01-31 22:50:14,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:14,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:14,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:14,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:14,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:14,178 INFO L87 Difference]: Start difference. First operand 561 states and 827 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) [2022-01-31 22:50:15,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:17,655 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 [] [2022-01-31 22:50:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:19,628 INFO L93 Difference]: Finished difference Result 1159 states and 1713 transitions. [2022-01-31 22:50:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:19,628 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 162 [2022-01-31 22:50:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:19,630 INFO L225 Difference]: With dead ends: 1159 [2022-01-31 22:50:19,630 INFO L226 Difference]: Without dead ends: 624 [2022-01-31 22:50:19,631 INFO L932 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 [2022-01-31 22:50:19,631 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 126 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:19,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 410 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-01-31 22:50:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-01-31 22:50:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 561. [2022-01-31 22:50:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 556 states have (on average 1.4622302158273381) internal successors, (813), 556 states have internal predecessors, (813), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 817 transitions. [2022-01-31 22:50:19,669 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 817 transitions. Word has length 162 [2022-01-31 22:50:19,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:19,669 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 817 transitions. [2022-01-31 22:50:19,669 INFO L471 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) [2022-01-31 22:50:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 817 transitions. [2022-01-31 22:50:19,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-31 22:50:19,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:19,670 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 22:50:19,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 22:50:19,670 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:19,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:19,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1335244907, now seen corresponding path program 1 times [2022-01-31 22:50:19,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:19,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118293262] [2022-01-31 22:50:19,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:19,707 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:19,707 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:19,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:19,715 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:19,797 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:19,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118293262] [2022-01-31 22:50:19,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2118293262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:19,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:19,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:19,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328134377] [2022-01-31 22:50:19,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:19,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:19,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:19,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:19,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:19,798 INFO L87 Difference]: Start difference. First operand 561 states and 817 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:21,248 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 [] [2022-01-31 22:50:23,070 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 [] [2022-01-31 22:50:24,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:24,239 INFO L93 Difference]: Finished difference Result 1114 states and 1628 transitions. [2022-01-31 22:50:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 170 [2022-01-31 22:50:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:24,241 INFO L225 Difference]: With dead ends: 1114 [2022-01-31 22:50:24,241 INFO L226 Difference]: Without dead ends: 579 [2022-01-31 22:50:24,242 INFO L932 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 [2022-01-31 22:50:24,242 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 51 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:24,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 549 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 22:50:24,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-01-31 22:50:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 561. [2022-01-31 22:50:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 556 states have (on average 1.460431654676259) internal successors, (812), 556 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 816 transitions. [2022-01-31 22:50:24,290 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 816 transitions. Word has length 170 [2022-01-31 22:50:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:24,291 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 816 transitions. [2022-01-31 22:50:24,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 816 transitions. [2022-01-31 22:50:24,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-31 22:50:24,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:24,292 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 22:50:24,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 22:50:24,292 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash -715163991, now seen corresponding path program 1 times [2022-01-31 22:50:24,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:24,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255970628] [2022-01-31 22:50:24,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:24,320 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:24,320 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:24,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:24,328 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:24,419 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:24,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255970628] [2022-01-31 22:50:24,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1255970628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:24,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:24,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:24,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383893192] [2022-01-31 22:50:24,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:24,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:24,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:24,421 INFO L87 Difference]: Start difference. First operand 561 states and 816 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:25,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:28,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:29,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:30,406 INFO L93 Difference]: Finished difference Result 1192 states and 1737 transitions. [2022-01-31 22:50:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:30,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 170 [2022-01-31 22:50:30,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:30,408 INFO L225 Difference]: With dead ends: 1192 [2022-01-31 22:50:30,408 INFO L226 Difference]: Without dead ends: 657 [2022-01-31 22:50:30,409 INFO L932 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 [2022-01-31 22:50:30,409 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 106 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:30,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 406 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 22:50:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-01-31 22:50:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 589. [2022-01-31 22:50:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 584 states have (on average 1.4503424657534247) internal successors, (847), 584 states have internal predecessors, (847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 851 transitions. [2022-01-31 22:50:30,449 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 851 transitions. Word has length 170 [2022-01-31 22:50:30,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:30,449 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 851 transitions. [2022-01-31 22:50:30,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 851 transitions. [2022-01-31 22:50:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-31 22:50:30,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:30,450 INFO L514 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] [2022-01-31 22:50:30,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 22:50:30,451 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:30,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1628807593, now seen corresponding path program 1 times [2022-01-31 22:50:30,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:30,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148012417] [2022-01-31 22:50:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:30,498 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:30,498 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:30,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:30,507 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:30,586 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:30,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148012417] [2022-01-31 22:50:30,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [148012417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:30,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:30,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:50:30,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893600789] [2022-01-31 22:50:30,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:30,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:50:30,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:30,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:50:30,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:50:30,589 INFO L87 Difference]: Start difference. First operand 589 states and 851 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) [2022-01-31 22:50:33,812 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 [] [2022-01-31 22:50:34,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:34,324 INFO L93 Difference]: Finished difference Result 1707 states and 2483 transitions. [2022-01-31 22:50:34,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:50:34,324 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 [2022-01-31 22:50:34,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:34,327 INFO L225 Difference]: With dead ends: 1707 [2022-01-31 22:50:34,327 INFO L226 Difference]: Without dead ends: 1144 [2022-01-31 22:50:34,328 INFO L932 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 [2022-01-31 22:50:34,329 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:34,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 576 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 22:50:34,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-01-31 22:50:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2022-01-31 22:50:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4460052677787534) internal successors, (1647), 1139 states have internal predecessors, (1647), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1651 transitions. [2022-01-31 22:50:34,420 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1651 transitions. Word has length 173 [2022-01-31 22:50:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:34,420 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1651 transitions. [2022-01-31 22:50:34,420 INFO L471 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) [2022-01-31 22:50:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1651 transitions. [2022-01-31 22:50:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-31 22:50:34,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:34,422 INFO L514 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] [2022-01-31 22:50:34,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 22:50:34,422 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:34,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash -790443429, now seen corresponding path program 1 times [2022-01-31 22:50:34,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:34,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572087027] [2022-01-31 22:50:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:34,460 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:34,460 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:34,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:34,469 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:34,548 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:34,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572087027] [2022-01-31 22:50:34,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [572087027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:34,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:34,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:50:34,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016901019] [2022-01-31 22:50:34,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:34,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:50:34,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:34,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:50:34,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:50:34,549 INFO L87 Difference]: Start difference. First operand 1144 states and 1651 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) [2022-01-31 22:50:36,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:38,101 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 [] [2022-01-31 22:50:39,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:39,468 INFO L93 Difference]: Finished difference Result 2782 states and 4030 transitions. [2022-01-31 22:50:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:50:39,468 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 [2022-01-31 22:50:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:39,473 INFO L225 Difference]: With dead ends: 2782 [2022-01-31 22:50:39,473 INFO L226 Difference]: Without dead ends: 1664 [2022-01-31 22:50:39,474 INFO L932 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 [2022-01-31 22:50:39,475 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:39,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 574 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 22:50:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-01-31 22:50:39,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1662. [2022-01-31 22:50:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1657 states have (on average 1.4447797223898613) internal successors, (2394), 1657 states have internal predecessors, (2394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2398 transitions. [2022-01-31 22:50:39,603 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2398 transitions. Word has length 174 [2022-01-31 22:50:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:39,603 INFO L470 AbstractCegarLoop]: Abstraction has 1662 states and 2398 transitions. [2022-01-31 22:50:39,603 INFO L471 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) [2022-01-31 22:50:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2398 transitions. [2022-01-31 22:50:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-31 22:50:39,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:39,605 INFO L514 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] [2022-01-31 22:50:39,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 22:50:39,605 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:39,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash -729324120, now seen corresponding path program 1 times [2022-01-31 22:50:39,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:39,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200497504] [2022-01-31 22:50:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:39,644 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:39,644 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:39,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:39,653 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:39,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:39,753 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:39,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200497504] [2022-01-31 22:50:39,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1200497504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:39,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:39,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:50:39,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717123510] [2022-01-31 22:50:39,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:39,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:50:39,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:39,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:50:39,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:50:39,754 INFO L87 Difference]: Start difference. First operand 1662 states and 2398 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) [2022-01-31 22:50:41,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:43,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:44,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:45,174 INFO L93 Difference]: Finished difference Result 3809 states and 5513 transitions. [2022-01-31 22:50:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:50:45,174 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 [2022-01-31 22:50:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:45,180 INFO L225 Difference]: With dead ends: 3809 [2022-01-31 22:50:45,180 INFO L226 Difference]: Without dead ends: 2173 [2022-01-31 22:50:45,182 INFO L932 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 [2022-01-31 22:50:45,182 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:45,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 454 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 22:50:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2173 states. [2022-01-31 22:50:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2173 to 2167. [2022-01-31 22:50:45,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 2162 states have (on average 1.4458834412580943) internal successors, (3126), 2162 states have internal predecessors, (3126), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 3130 transitions. [2022-01-31 22:50:45,343 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 3130 transitions. Word has length 175 [2022-01-31 22:50:45,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:45,343 INFO L470 AbstractCegarLoop]: Abstraction has 2167 states and 3130 transitions. [2022-01-31 22:50:45,343 INFO L471 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) [2022-01-31 22:50:45,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 3130 transitions. [2022-01-31 22:50:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-31 22:50:45,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:45,345 INFO L514 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] [2022-01-31 22:50:45,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 22:50:45,346 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1677376086, now seen corresponding path program 1 times [2022-01-31 22:50:45,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:45,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963963426] [2022-01-31 22:50:45,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:45,385 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:45,385 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:45,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:45,394 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:45,459 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:45,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963963426] [2022-01-31 22:50:45,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [963963426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:45,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:45,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:50:45,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61971593] [2022-01-31 22:50:45,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:45,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:50:45,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:50:45,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:50:45,460 INFO L87 Difference]: Start difference. First operand 2167 states and 3130 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) [2022-01-31 22:50:47,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:48,829 INFO L93 Difference]: Finished difference Result 4335 states and 6267 transitions. [2022-01-31 22:50:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:50:48,830 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 [2022-01-31 22:50:48,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:48,835 INFO L225 Difference]: With dead ends: 4335 [2022-01-31 22:50:48,835 INFO L226 Difference]: Without dead ends: 2194 [2022-01-31 22:50:48,839 INFO L932 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 [2022-01-31 22:50:48,839 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:48,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 22:50:48,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-01-31 22:50:48,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2022-01-31 22:50:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2189 states have (on average 1.444038373686615) internal successors, (3161), 2189 states have internal predecessors, (3161), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 3165 transitions. [2022-01-31 22:50:49,000 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 3165 transitions. Word has length 175 [2022-01-31 22:50:49,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:49,000 INFO L470 AbstractCegarLoop]: Abstraction has 2194 states and 3165 transitions. [2022-01-31 22:50:49,000 INFO L471 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) [2022-01-31 22:50:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 3165 transitions. [2022-01-31 22:50:49,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-31 22:50:49,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:49,003 INFO L514 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] [2022-01-31 22:50:49,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 22:50:49,003 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:49,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1291513684, now seen corresponding path program 1 times [2022-01-31 22:50:49,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:49,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687143614] [2022-01-31 22:50:49,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:49,046 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:49,046 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:49,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:49,055 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:49,125 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:49,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687143614] [2022-01-31 22:50:49,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [687143614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:49,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:49,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:50:49,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019255309] [2022-01-31 22:50:49,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:49,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:50:49,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:49,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:50:49,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:50:49,126 INFO L87 Difference]: Start difference. First operand 2194 states and 3165 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) [2022-01-31 22:50:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:50,923 INFO L93 Difference]: Finished difference Result 4364 states and 6303 transitions. [2022-01-31 22:50:50,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:50:50,923 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 [2022-01-31 22:50:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:50,928 INFO L225 Difference]: With dead ends: 4364 [2022-01-31 22:50:50,928 INFO L226 Difference]: Without dead ends: 2196 [2022-01-31 22:50:50,931 INFO L932 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 [2022-01-31 22:50:50,931 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:50,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 22:50:50,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2022-01-31 22:50:51,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2196. [2022-01-31 22:50:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2191 states have (on average 1.443633044272022) internal successors, (3163), 2191 states have internal predecessors, (3163), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3167 transitions. [2022-01-31 22:50:51,095 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3167 transitions. Word has length 175 [2022-01-31 22:50:51,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:51,095 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 3167 transitions. [2022-01-31 22:50:51,096 INFO L471 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) [2022-01-31 22:50:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3167 transitions. [2022-01-31 22:50:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-31 22:50:51,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:51,097 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-01-31 22:50:51,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 22:50:51,098 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:51,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1286761194, now seen corresponding path program 1 times [2022-01-31 22:50:51,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:51,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873196275] [2022-01-31 22:50:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:51,127 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:51,127 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:51,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:51,136 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:51,251 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:51,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873196275] [2022-01-31 22:50:51,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [873196275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:51,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:51,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:51,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131909416] [2022-01-31 22:50:51,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:51,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:51,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:51,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:51,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:51,252 INFO L87 Difference]: Start difference. First operand 2196 states and 3167 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:52,671 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 [] [2022-01-31 22:50:54,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:55,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:50:55,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:50:55,902 INFO L93 Difference]: Finished difference Result 4437 states and 6393 transitions. [2022-01-31 22:50:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:50:55,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-01-31 22:50:55,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:50:55,907 INFO L225 Difference]: With dead ends: 4437 [2022-01-31 22:50:55,907 INFO L226 Difference]: Without dead ends: 2269 [2022-01-31 22:50:55,910 INFO L932 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 [2022-01-31 22:50:55,910 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:50:55,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 22:50:55,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2022-01-31 22:50:56,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2196. [2022-01-31 22:50:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2191 states have (on average 1.4418073938840712) internal successors, (3159), 2191 states have internal predecessors, (3159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3163 transitions. [2022-01-31 22:50:56,074 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3163 transitions. Word has length 176 [2022-01-31 22:50:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:50:56,074 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 3163 transitions. [2022-01-31 22:50:56,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3163 transitions. [2022-01-31 22:50:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-01-31 22:50:56,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:50:56,076 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:50:56,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 22:50:56,076 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:50:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:50:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash 584394581, now seen corresponding path program 1 times [2022-01-31 22:50:56,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:50:56,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945807333] [2022-01-31 22:50:56,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:50:56,107 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:50:56,107 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:50:56,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:50:56,116 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:50:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:56,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:50:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:50:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:50:56,198 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:50:56,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945807333] [2022-01-31 22:50:56,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1945807333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:50:56,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:50:56,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:50:56,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268626773] [2022-01-31 22:50:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:50:56,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:50:56,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:50:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:50:56,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:50:56,199 INFO L87 Difference]: Start difference. First operand 2196 states and 3163 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:50:58,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:51:00,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:51:01,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:01,830 INFO L93 Difference]: Finished difference Result 4429 states and 6373 transitions. [2022-01-31 22:51:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:01,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 177 [2022-01-31 22:51:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:01,834 INFO L225 Difference]: With dead ends: 4429 [2022-01-31 22:51:01,834 INFO L226 Difference]: Without dead ends: 2261 [2022-01-31 22:51:01,836 INFO L932 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 [2022-01-31 22:51:01,837 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 45 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:01,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-01-31 22:51:01,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-01-31 22:51:01,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2196. [2022-01-31 22:51:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2191 states have (on average 1.4399817434961204) internal successors, (3155), 2191 states have internal predecessors, (3155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3159 transitions. [2022-01-31 22:51:01,999 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3159 transitions. Word has length 177 [2022-01-31 22:51:01,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:01,999 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 3159 transitions. [2022-01-31 22:51:02,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:02,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3159 transitions. [2022-01-31 22:51:02,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-01-31 22:51:02,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:02,001 INFO L514 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, 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] [2022-01-31 22:51:02,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 22:51:02,002 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:02,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash -809750, now seen corresponding path program 1 times [2022-01-31 22:51:02,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:02,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106248662] [2022-01-31 22:51:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:02,046 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:02,046 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:02,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:02,056 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:02,132 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:02,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106248662] [2022-01-31 22:51:02,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [106248662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:02,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:02,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:51:02,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771434919] [2022-01-31 22:51:02,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:02,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:51:02,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:02,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:51:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:51:02,133 INFO L87 Difference]: Start difference. First operand 2196 states and 3159 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:05,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:51:07,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:51:07,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:07,559 INFO L93 Difference]: Finished difference Result 4429 states and 6365 transitions. [2022-01-31 22:51:07,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:07,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have 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 [2022-01-31 22:51:07,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:07,563 INFO L225 Difference]: With dead ends: 4429 [2022-01-31 22:51:07,563 INFO L226 Difference]: Without dead ends: 2261 [2022-01-31 22:51:07,566 INFO L932 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 [2022-01-31 22:51:07,566 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 38 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:07,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 22:51:07,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-01-31 22:51:07,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2196. [2022-01-31 22:51:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2191 states have (on average 1.4381560931081698) internal successors, (3151), 2191 states have internal predecessors, (3151), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:07,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3155 transitions. [2022-01-31 22:51:07,730 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3155 transitions. Word has length 187 [2022-01-31 22:51:07,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:07,730 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 3155 transitions. [2022-01-31 22:51:07,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3155 transitions. [2022-01-31 22:51:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-01-31 22:51:07,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:07,732 INFO L514 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, 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] [2022-01-31 22:51:07,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 22:51:07,732 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1204269894, now seen corresponding path program 1 times [2022-01-31 22:51:07,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:07,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96336711] [2022-01-31 22:51:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:07,771 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:07,771 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:07,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:07,782 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:07,864 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:07,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96336711] [2022-01-31 22:51:07,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [96336711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:07,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:07,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:51:07,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428025187] [2022-01-31 22:51:07,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:07,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:51:07,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:51:07,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:51:07,865 INFO L87 Difference]: Start difference. First operand 2196 states and 3155 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:08,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:51:11,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:51:12,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:12,152 INFO L93 Difference]: Finished difference Result 4589 states and 6580 transitions. [2022-01-31 22:51:12,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:12,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-01-31 22:51:12,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:12,157 INFO L225 Difference]: With dead ends: 4589 [2022-01-31 22:51:12,157 INFO L226 Difference]: Without dead ends: 2421 [2022-01-31 22:51:12,160 INFO L932 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 [2022-01-31 22:51:12,160 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 109 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:12,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 402 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 22:51:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2022-01-31 22:51:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2196. [2022-01-31 22:51:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2191 states have (on average 1.4276586033774532) internal successors, (3128), 2191 states have internal predecessors, (3128), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3132 transitions. [2022-01-31 22:51:12,330 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3132 transitions. Word has length 188 [2022-01-31 22:51:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:12,331 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 3132 transitions. [2022-01-31 22:51:12,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3132 transitions. [2022-01-31 22:51:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 22:51:12,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:12,333 INFO L514 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] [2022-01-31 22:51:12,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 22:51:12,334 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:12,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1038778275, now seen corresponding path program 1 times [2022-01-31 22:51:12,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:12,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50164069] [2022-01-31 22:51:12,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:12,386 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:12,386 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:12,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:12,396 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:12,745 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:12,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50164069] [2022-01-31 22:51:12,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [50164069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:12,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:12,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 22:51:12,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293282358] [2022-01-31 22:51:12,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:12,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 22:51:12,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:12,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 22:51:12,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:51:12,749 INFO L87 Difference]: Start difference. First operand 2196 states and 3132 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) [2022-01-31 22:51:14,758 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 [] [2022-01-31 22:51:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:15,423 INFO L93 Difference]: Finished difference Result 4385 states and 6256 transitions. [2022-01-31 22:51:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 22:51:15,424 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 [2022-01-31 22:51:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:15,431 INFO L225 Difference]: With dead ends: 4385 [2022-01-31 22:51:15,432 INFO L226 Difference]: Without dead ends: 2196 [2022-01-31 22:51:15,434 INFO L932 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 [2022-01-31 22:51:15,434 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:15,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:51:15,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2022-01-31 22:51:15,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2196. [2022-01-31 22:51:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2191 states have (on average 1.4272021907804655) internal successors, (3127), 2191 states have internal predecessors, (3127), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3131 transitions. [2022-01-31 22:51:15,647 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3131 transitions. Word has length 198 [2022-01-31 22:51:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:15,647 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 3131 transitions. [2022-01-31 22:51:15,648 INFO L471 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) [2022-01-31 22:51:15,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3131 transitions. [2022-01-31 22:51:15,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 22:51:15,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:15,650 INFO L514 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] [2022-01-31 22:51:15,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 22:51:15,650 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:15,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:15,651 INFO L85 PathProgramCache]: Analyzing trace with hash -551704549, now seen corresponding path program 1 times [2022-01-31 22:51:15,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:15,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358476101] [2022-01-31 22:51:15,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:15,688 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:15,688 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:15,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:15,699 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:16,494 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:16,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358476101] [2022-01-31 22:51:16,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1358476101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:16,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:16,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-31 22:51:16,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234136313] [2022-01-31 22:51:16,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:16,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-31 22:51:16,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-31 22:51:16,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-31 22:51:16,496 INFO L87 Difference]: Start difference. First operand 2196 states and 3131 transitions. Second operand has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 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) [2022-01-31 22:51:19,855 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 [] [2022-01-31 22:51:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:24,010 INFO L93 Difference]: Finished difference Result 5367 states and 7659 transitions. [2022-01-31 22:51:24,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-31 22:51:24,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 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 [2022-01-31 22:51:24,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:24,016 INFO L225 Difference]: With dead ends: 5367 [2022-01-31 22:51:24,016 INFO L226 Difference]: Without dead ends: 3199 [2022-01-31 22:51:24,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-01-31 22:51:24,020 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 304 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:24,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1710 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-01-31 22:51:24,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2022-01-31 22:51:24,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 2726. [2022-01-31 22:51:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2726 states, 2721 states have (on average 1.4388092613009922) internal successors, (3915), 2721 states have internal predecessors, (3915), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3919 transitions. [2022-01-31 22:51:24,243 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3919 transitions. Word has length 198 [2022-01-31 22:51:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:24,243 INFO L470 AbstractCegarLoop]: Abstraction has 2726 states and 3919 transitions. [2022-01-31 22:51:24,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 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) [2022-01-31 22:51:24,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3919 transitions. [2022-01-31 22:51:24,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-01-31 22:51:24,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:24,246 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:51:24,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 22:51:24,246 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:24,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:24,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1478366011, now seen corresponding path program 1 times [2022-01-31 22:51:24,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:24,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902857263] [2022-01-31 22:51:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:24,288 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:24,288 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:24,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:24,298 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:24,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:24,422 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:24,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902857263] [2022-01-31 22:51:24,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [902857263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:24,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:24,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:51:24,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122277957] [2022-01-31 22:51:24,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:24,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:51:24,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:24,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:51:24,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:51:24,423 INFO L87 Difference]: Start difference. First operand 2726 states and 3919 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:26,238 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 [] [2022-01-31 22:51:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:27,919 INFO L93 Difference]: Finished difference Result 5852 states and 8401 transitions. [2022-01-31 22:51:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:27,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 209 [2022-01-31 22:51:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:27,924 INFO L225 Difference]: With dead ends: 5852 [2022-01-31 22:51:27,924 INFO L226 Difference]: Without dead ends: 3181 [2022-01-31 22:51:27,929 INFO L932 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 [2022-01-31 22:51:27,929 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 106 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:27,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 420 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 22:51:27,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2022-01-31 22:51:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2879. [2022-01-31 22:51:28,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2874 states have (on average 1.4352818371607516) internal successors, (4125), 2874 states have internal predecessors, (4125), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:28,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 4129 transitions. [2022-01-31 22:51:28,198 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 4129 transitions. Word has length 209 [2022-01-31 22:51:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:28,198 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 4129 transitions. [2022-01-31 22:51:28,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:28,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 4129 transitions. [2022-01-31 22:51:28,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-31 22:51:28,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:28,201 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1] [2022-01-31 22:51:28,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-31 22:51:28,201 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:28,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:28,202 INFO L85 PathProgramCache]: Analyzing trace with hash 358860438, now seen corresponding path program 1 times [2022-01-31 22:51:28,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:28,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264752503] [2022-01-31 22:51:28,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:28,245 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:28,245 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:28,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:28,259 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:28,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:28,355 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:28,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264752503] [2022-01-31 22:51:28,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [264752503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:28,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:28,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:51:28,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596956379] [2022-01-31 22:51:28,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:28,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:51:28,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:28,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:51:28,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:51:28,377 INFO L87 Difference]: Start difference. First operand 2879 states and 4129 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:31,272 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 [] [2022-01-31 22:51:33,087 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 [] [2022-01-31 22:51:33,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:33,701 INFO L93 Difference]: Finished difference Result 5238 states and 7481 transitions. [2022-01-31 22:51:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:33,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-01-31 22:51:33,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:33,705 INFO L225 Difference]: With dead ends: 5238 [2022-01-31 22:51:33,705 INFO L226 Difference]: Without dead ends: 2938 [2022-01-31 22:51:33,709 INFO L932 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 [2022-01-31 22:51:33,709 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 57 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:33,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 612 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 22:51:33,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2022-01-31 22:51:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2879. [2022-01-31 22:51:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2874 states have (on average 1.4342379958246347) internal successors, (4122), 2874 states have internal predecessors, (4122), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:33,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 4126 transitions. [2022-01-31 22:51:33,969 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 4126 transitions. Word has length 217 [2022-01-31 22:51:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:33,969 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 4126 transitions. [2022-01-31 22:51:33,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:33,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 4126 transitions. [2022-01-31 22:51:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-01-31 22:51:33,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:33,973 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1] [2022-01-31 22:51:33,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-31 22:51:33,973 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:33,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:33,973 INFO L85 PathProgramCache]: Analyzing trace with hash 59057621, now seen corresponding path program 1 times [2022-01-31 22:51:33,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:33,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505899481] [2022-01-31 22:51:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:34,041 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:34,041 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:34,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:34,056 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:34,149 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:34,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505899481] [2022-01-31 22:51:34,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1505899481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:34,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:34,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:51:34,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772588603] [2022-01-31 22:51:34,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:34,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:51:34,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:34,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:51:34,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:51:34,150 INFO L87 Difference]: Start difference. First operand 2879 states and 4126 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:35,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:51:37,193 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 [] [2022-01-31 22:51:38,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:38,509 INFO L93 Difference]: Finished difference Result 5977 states and 8555 transitions. [2022-01-31 22:51:38,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:38,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-01-31 22:51:38,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:38,515 INFO L225 Difference]: With dead ends: 5977 [2022-01-31 22:51:38,515 INFO L226 Difference]: Without dead ends: 3153 [2022-01-31 22:51:38,519 INFO L932 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 [2022-01-31 22:51:38,519 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 114 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:38,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 406 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 22:51:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2022-01-31 22:51:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 2877. [2022-01-31 22:51:38,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2872 states have (on average 1.4178272980501392) internal successors, (4072), 2872 states have internal predecessors, (4072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:38,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4076 transitions. [2022-01-31 22:51:38,779 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4076 transitions. Word has length 218 [2022-01-31 22:51:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:38,779 INFO L470 AbstractCegarLoop]: Abstraction has 2877 states and 4076 transitions. [2022-01-31 22:51:38,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:38,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4076 transitions. [2022-01-31 22:51:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-01-31 22:51:38,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:38,782 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:51:38,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-31 22:51:38,783 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:38,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1647051617, now seen corresponding path program 1 times [2022-01-31 22:51:38,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:38,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172459897] [2022-01-31 22:51:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:38,837 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:38,838 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:38,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:38,849 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:38,958 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:38,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172459897] [2022-01-31 22:51:38,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [172459897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:38,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:38,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:51:38,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528922871] [2022-01-31 22:51:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:38,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:51:38,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:38,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:51:38,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:51:38,959 INFO L87 Difference]: Start difference. First operand 2877 states and 4076 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:41,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:41,861 INFO L93 Difference]: Finished difference Result 5973 states and 8455 transitions. [2022-01-31 22:51:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:41,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-01-31 22:51:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:41,865 INFO L225 Difference]: With dead ends: 5973 [2022-01-31 22:51:41,865 INFO L226 Difference]: Without dead ends: 3151 [2022-01-31 22:51:41,869 INFO L932 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 [2022-01-31 22:51:41,870 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 116 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:41,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 416 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:51:41,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2022-01-31 22:51:42,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 2877. [2022-01-31 22:51:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2872 states have (on average 1.4011142061281336) internal successors, (4024), 2872 states have internal predecessors, (4024), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4028 transitions. [2022-01-31 22:51:42,152 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4028 transitions. Word has length 239 [2022-01-31 22:51:42,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:42,152 INFO L470 AbstractCegarLoop]: Abstraction has 2877 states and 4028 transitions. [2022-01-31 22:51:42,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4028 transitions. [2022-01-31 22:51:42,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-01-31 22:51:42,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:42,156 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:51:42,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-31 22:51:42,156 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:42,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:42,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1538352958, now seen corresponding path program 1 times [2022-01-31 22:51:42,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:42,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931156319] [2022-01-31 22:51:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:42,213 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:51:42,214 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:51:42,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:51:42,226 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:51:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:51:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:51:42,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:51:42,310 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:51:42,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931156319] [2022-01-31 22:51:42,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [931156319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:51:42,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:51:42,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:51:42,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711628036] [2022-01-31 22:51:42,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:51:42,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:51:42,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:51:42,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:51:42,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:51:42,311 INFO L87 Difference]: Start difference. First operand 2877 states and 4028 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:45,332 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 [] [2022-01-31 22:51:45,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:51:45,967 INFO L93 Difference]: Finished difference Result 5218 states and 7277 transitions. [2022-01-31 22:51:45,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:51:45,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-01-31 22:51:45,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:51:45,970 INFO L225 Difference]: With dead ends: 5218 [2022-01-31 22:51:45,970 INFO L226 Difference]: Without dead ends: 2918 [2022-01-31 22:51:45,974 INFO L932 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 [2022-01-31 22:51:45,975 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 50 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:51:45,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 600 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:51:45,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-01-31 22:51:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2877. [2022-01-31 22:51:46,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2872 states have (on average 1.4000696378830084) internal successors, (4021), 2872 states have internal predecessors, (4021), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4025 transitions. [2022-01-31 22:51:46,249 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4025 transitions. Word has length 240 [2022-01-31 22:51:46,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:51:46,249 INFO L470 AbstractCegarLoop]: Abstraction has 2877 states and 4025 transitions. [2022-01-31 22:51:46,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:51:46,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4025 transitions. [2022-01-31 22:51:46,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-01-31 22:51:46,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:51:46,253 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:51:46,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-31 22:51:46,253 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:51:46,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:51:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash 128841590, now seen corresponding path program 1 times [2022-01-31 22:51:46,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:51:46,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038416521] [2022-01-31 22:51:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:51:51,722 WARN L228 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:52:06,832 WARN L228 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:52:07,563 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:52:07,564 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:52:07,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:52:07,576 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:52:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:52:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:52:08,447 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:52:08,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038416521] [2022-01-31 22:52:08,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2038416521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:52:08,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:52:08,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-31 22:52:08,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725769804] [2022-01-31 22:52:08,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:52:08,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-31 22:52:08,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:52:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-31 22:52:08,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-01-31 22:52:08,449 INFO L87 Difference]: Start difference. First operand 2877 states and 4025 transitions. Second operand has 14 states, 13 states have (on average 13.23076923076923) internal successors, (172), 12 states have internal predecessors, (172), 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) [2022-01-31 22:52:10,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:52:12,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:52:14,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:52:15,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:52:18,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:52:20,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:52:22,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:52:22,227 INFO L93 Difference]: Finished difference Result 6169 states and 8586 transitions. [2022-01-31 22:52:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-31 22:52:22,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.23076923076923) internal successors, (172), 12 states have internal predecessors, (172), 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 240 [2022-01-31 22:52:22,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:52:22,231 INFO L225 Difference]: With dead ends: 6169 [2022-01-31 22:52:22,231 INFO L226 Difference]: Without dead ends: 3347 [2022-01-31 22:52:22,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2022-01-31 22:52:22,235 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 453 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 141 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:52:22,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1764 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1920 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-01-31 22:52:22,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2022-01-31 22:52:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 2810. [2022-01-31 22:52:22,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2805 states have (on average 1.3953654188948306) internal successors, (3914), 2805 states have internal predecessors, (3914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:52:22,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3918 transitions. [2022-01-31 22:52:22,531 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3918 transitions. Word has length 240 [2022-01-31 22:52:22,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:52:22,531 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3918 transitions. [2022-01-31 22:52:22,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.23076923076923) internal successors, (172), 12 states have internal predecessors, (172), 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) [2022-01-31 22:52:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3918 transitions. [2022-01-31 22:52:22,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-01-31 22:52:22,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:52:22,534 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:52:22,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-31 22:52:22,535 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:52:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:52:22,535 INFO L85 PathProgramCache]: Analyzing trace with hash 567511742, now seen corresponding path program 1 times [2022-01-31 22:52:22,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:52:22,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382036843] [2022-01-31 22:52:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:52:28,377 WARN L228 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:52:40,058 WARN L228 SmtUtils]: Spent 10.23s on a formula simplification. DAG size of input: 193 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:52:55,367 WARN L228 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 193 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:53:03,353 WARN L228 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:53:03,976 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:53:03,976 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:53:03,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:53:03,988 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:53:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:53:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:53:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:53:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:53:04,704 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:53:04,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382036843] [2022-01-31 22:53:04,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1382036843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:53:04,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:53:04,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-31 22:53:04,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145670196] [2022-01-31 22:53:04,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:53:04,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-31 22:53:04,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:53:04,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-31 22:53:04,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-31 22:53:04,705 INFO L87 Difference]: Start difference. First operand 2810 states and 3918 transitions. Second operand has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 8 states have internal predecessors, (150), 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) [2022-01-31 22:53:05,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:53:08,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:53:10,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:53:11,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:53:13,492 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 [] [2022-01-31 22:53:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:53:15,251 INFO L93 Difference]: Finished difference Result 5462 states and 7574 transitions. [2022-01-31 22:53:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-31 22:53:15,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 8 states have internal predecessors, (150), 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 254 [2022-01-31 22:53:15,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:53:15,258 INFO L225 Difference]: With dead ends: 5462 [2022-01-31 22:53:15,258 INFO L226 Difference]: Without dead ends: 3162 [2022-01-31 22:53:15,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-01-31 22:53:15,262 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 308 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 79 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:53:15,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1582 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1911 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2022-01-31 22:53:15,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2022-01-31 22:53:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 2810. [2022-01-31 22:53:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2805 states have (on average 1.3950089126559715) internal successors, (3913), 2805 states have internal predecessors, (3913), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:53:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3917 transitions. [2022-01-31 22:53:15,554 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3917 transitions. Word has length 254 [2022-01-31 22:53:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:53:15,554 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3917 transitions. [2022-01-31 22:53:15,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 8 states have internal predecessors, (150), 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) [2022-01-31 22:53:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3917 transitions. [2022-01-31 22:53:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-01-31 22:53:15,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:53:15,557 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:53:15,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-31 22:53:15,557 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:53:15,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:53:15,558 INFO L85 PathProgramCache]: Analyzing trace with hash -762548654, now seen corresponding path program 1 times [2022-01-31 22:53:15,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:53:15,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750412195] [2022-01-31 22:53:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:53:21,130 WARN L228 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:53:36,025 WARN L228 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:53:36,710 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:53:36,710 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:53:36,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:53:36,722 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:53:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:53:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:53:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:53:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:53:36,845 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:53:36,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750412195] [2022-01-31 22:53:36,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1750412195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:53:36,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:53:36,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:53:36,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593735710] [2022-01-31 22:53:36,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:53:36,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:53:36,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:53:36,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:53:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:53:36,846 INFO L87 Difference]: Start difference. First operand 2810 states and 3917 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:53:38,854 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 [] [2022-01-31 22:53:39,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:53:39,586 INFO L93 Difference]: Finished difference Result 5110 states and 7112 transitions. [2022-01-31 22:53:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 22:53:39,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-01-31 22:53:39,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:53:39,589 INFO L225 Difference]: With dead ends: 5110 [2022-01-31 22:53:39,589 INFO L226 Difference]: Without dead ends: 2810 [2022-01-31 22:53:39,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-31 22:53:39,592 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 152 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:53:39,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 392 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 525 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:53:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-01-31 22:53:39,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2810. [2022-01-31 22:53:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2805 states have (on average 1.3935828877005347) internal successors, (3909), 2805 states have internal predecessors, (3909), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:53:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3913 transitions. [2022-01-31 22:53:39,891 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3913 transitions. Word has length 254 [2022-01-31 22:53:39,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:53:39,891 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3913 transitions. [2022-01-31 22:53:39,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:53:39,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3913 transitions. [2022-01-31 22:53:39,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-01-31 22:53:39,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:53:39,895 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:53:39,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-31 22:53:39,895 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:53:39,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:53:39,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1382282232, now seen corresponding path program 1 times [2022-01-31 22:53:39,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:53:39,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157563333] [2022-01-31 22:53:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:53:45,141 WARN L228 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:54:01,467 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:54:01,467 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:54:01,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:54:01,479 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:54:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:54:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:54:01,567 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:54:01,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157563333] [2022-01-31 22:54:01,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1157563333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:54:01,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:54:01,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:54:01,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465295247] [2022-01-31 22:54:01,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:54:01,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:54:01,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:54:01,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:54:01,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:54:01,569 INFO L87 Difference]: Start difference. First operand 2810 states and 3913 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:02,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:54:04,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:54:05,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:54:05,811 INFO L93 Difference]: Finished difference Result 5151 states and 7155 transitions. [2022-01-31 22:54:05,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:54:05,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 261 [2022-01-31 22:54:05,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:54:05,814 INFO L225 Difference]: With dead ends: 5151 [2022-01-31 22:54:05,814 INFO L226 Difference]: Without dead ends: 2851 [2022-01-31 22:54:05,817 INFO L932 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 [2022-01-31 22:54:05,817 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 52 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:54:05,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 598 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 22:54:05,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2022-01-31 22:54:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2810. [2022-01-31 22:54:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2805 states have (on average 1.3925133689839573) internal successors, (3906), 2805 states have internal predecessors, (3906), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3910 transitions. [2022-01-31 22:54:06,124 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3910 transitions. Word has length 261 [2022-01-31 22:54:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:54:06,124 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3910 transitions. [2022-01-31 22:54:06,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3910 transitions. [2022-01-31 22:54:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-01-31 22:54:06,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:54:06,128 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:54:06,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-31 22:54:06,128 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:54:06,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:54:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash -236928521, now seen corresponding path program 1 times [2022-01-31 22:54:06,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:54:06,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587058683] [2022-01-31 22:54:06,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:54:12,892 WARN L228 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:54:29,480 WARN L228 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:54:30,121 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:54:30,121 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:54:30,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:54:30,134 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:54:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:30,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:54:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:54:30,244 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:54:30,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587058683] [2022-01-31 22:54:30,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [587058683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:54:30,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:54:30,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:54:30,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031496061] [2022-01-31 22:54:30,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:54:30,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:54:30,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:54:30,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:54:30,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:54:30,245 INFO L87 Difference]: Start difference. First operand 2810 states and 3910 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:33,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:54:34,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:54:35,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:54:35,083 INFO L93 Difference]: Finished difference Result 5137 states and 7130 transitions. [2022-01-31 22:54:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:54:35,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 262 [2022-01-31 22:54:35,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:54:35,086 INFO L225 Difference]: With dead ends: 5137 [2022-01-31 22:54:35,086 INFO L226 Difference]: Without dead ends: 2837 [2022-01-31 22:54:35,089 INFO L932 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 [2022-01-31 22:54:35,089 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 46 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:54:35,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 590 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 22:54:35,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2022-01-31 22:54:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2810. [2022-01-31 22:54:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2805 states have (on average 1.3914438502673796) internal successors, (3903), 2805 states have internal predecessors, (3903), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3907 transitions. [2022-01-31 22:54:35,393 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3907 transitions. Word has length 262 [2022-01-31 22:54:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:54:35,393 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3907 transitions. [2022-01-31 22:54:35,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3907 transitions. [2022-01-31 22:54:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-01-31 22:54:35,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:54:35,396 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:54:35,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-31 22:54:35,396 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:54:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:54:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1469072763, now seen corresponding path program 1 times [2022-01-31 22:54:35,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:54:35,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085892392] [2022-01-31 22:54:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:54:35,448 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:54:35,448 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:54:35,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:54:35,461 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:54:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:54:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:54:35,977 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:54:35,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085892392] [2022-01-31 22:54:35,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2085892392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:54:35,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:54:35,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-31 22:54:35,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183873908] [2022-01-31 22:54:35,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:54:35,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 22:54:35,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:54:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 22:54:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:54:35,980 INFO L87 Difference]: Start difference. First operand 2810 states and 3907 transitions. Second operand has 9 states, 8 states have (on average 17.375) internal successors, (139), 7 states have internal predecessors, (139), 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) [2022-01-31 22:54:39,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:54:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:54:41,619 INFO L93 Difference]: Finished difference Result 5920 states and 8201 transitions. [2022-01-31 22:54:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 22:54:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.375) internal successors, (139), 7 states have internal predecessors, (139), 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 267 [2022-01-31 22:54:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:54:41,624 INFO L225 Difference]: With dead ends: 5920 [2022-01-31 22:54:41,624 INFO L226 Difference]: Without dead ends: 3165 [2022-01-31 22:54:41,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-01-31 22:54:41,628 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 315 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:54:41,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 944 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 22:54:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2022-01-31 22:54:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 2777. [2022-01-31 22:54:41,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2772 states have (on average 1.391053391053391) internal successors, (3856), 2772 states have internal predecessors, (3856), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3860 transitions. [2022-01-31 22:54:41,938 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3860 transitions. Word has length 267 [2022-01-31 22:54:41,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:54:41,938 INFO L470 AbstractCegarLoop]: Abstraction has 2777 states and 3860 transitions. [2022-01-31 22:54:41,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.375) internal successors, (139), 7 states have internal predecessors, (139), 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) [2022-01-31 22:54:41,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3860 transitions. [2022-01-31 22:54:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-01-31 22:54:41,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:54:41,941 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:54:41,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-31 22:54:41,942 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:54:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:54:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash -278722805, now seen corresponding path program 1 times [2022-01-31 22:54:41,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:54:41,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152287450] [2022-01-31 22:54:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:54:52,813 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:54:52,813 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:54:52,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:54:52,826 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:54:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:54:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:54:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:54:52,941 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:54:52,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152287450] [2022-01-31 22:54:52,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1152287450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:54:52,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:54:52,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 22:54:52,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058744536] [2022-01-31 22:54:52,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:54:52,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 22:54:52,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:54:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 22:54:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:54:52,942 INFO L87 Difference]: Start difference. First operand 2777 states and 3860 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 6 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:54:55,576 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 [] [2022-01-31 22:54:57,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:54:59,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:55:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:55:00,750 INFO L93 Difference]: Finished difference Result 6324 states and 8766 transitions. [2022-01-31 22:55:00,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-31 22:55:00,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 6 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-01-31 22:55:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:55:00,754 INFO L225 Difference]: With dead ends: 6324 [2022-01-31 22:55:00,754 INFO L226 Difference]: Without dead ends: 3575 [2022-01-31 22:55:00,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-01-31 22:55:00,760 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 191 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:55:00,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 839 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-01-31 22:55:00,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2022-01-31 22:55:01,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 2853. [2022-01-31 22:55:01,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2848 states have (on average 1.3669241573033708) internal successors, (3893), 2848 states have internal predecessors, (3893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3897 transitions. [2022-01-31 22:55:01,106 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3897 transitions. Word has length 278 [2022-01-31 22:55:01,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:55:01,106 INFO L470 AbstractCegarLoop]: Abstraction has 2853 states and 3897 transitions. [2022-01-31 22:55:01,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 6 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3897 transitions. [2022-01-31 22:55:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-01-31 22:55:01,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:55:01,109 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:55:01,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-31 22:55:01,109 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:55:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:55:01,110 INFO L85 PathProgramCache]: Analyzing trace with hash -210214457, now seen corresponding path program 1 times [2022-01-31 22:55:01,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:55:01,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482539732] [2022-01-31 22:55:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:55:12,122 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:55:12,122 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:55:12,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:55:12,135 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:55:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:55:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:55:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:55:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:55:12,258 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:55:12,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482539732] [2022-01-31 22:55:12,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [482539732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:55:12,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:55:12,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:55:12,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11645132] [2022-01-31 22:55:12,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:55:12,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:55:12,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:55:12,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:55:12,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:55:12,259 INFO L87 Difference]: Start difference. First operand 2853 states and 3897 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:15,230 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 [] [2022-01-31 22:55:16,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:55:16,370 INFO L93 Difference]: Finished difference Result 6033 states and 8239 transitions. [2022-01-31 22:55:16,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:55:16,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 279 [2022-01-31 22:55:16,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:55:16,374 INFO L225 Difference]: With dead ends: 6033 [2022-01-31 22:55:16,374 INFO L226 Difference]: Without dead ends: 3208 [2022-01-31 22:55:16,377 INFO L932 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 [2022-01-31 22:55:16,377 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 120 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:55:16,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 424 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:55:16,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2022-01-31 22:55:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2857. [2022-01-31 22:55:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2852 states have (on average 1.3457223001402525) internal successors, (3838), 2852 states have internal predecessors, (3838), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:16,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 3842 transitions. [2022-01-31 22:55:16,732 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 3842 transitions. Word has length 279 [2022-01-31 22:55:16,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:55:16,732 INFO L470 AbstractCegarLoop]: Abstraction has 2857 states and 3842 transitions. [2022-01-31 22:55:16,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:16,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 3842 transitions. [2022-01-31 22:55:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-01-31 22:55:16,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:55:16,735 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:55:16,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-31 22:55:16,736 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:55:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:55:16,736 INFO L85 PathProgramCache]: Analyzing trace with hash -163089754, now seen corresponding path program 1 times [2022-01-31 22:55:16,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:55:16,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284399535] [2022-01-31 22:55:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:55:27,512 WARN L228 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:55:28,629 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:55:28,629 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:55:28,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:55:28,642 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:55:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:55:28,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:55:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:55:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:55:28,773 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:55:28,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284399535] [2022-01-31 22:55:28,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [284399535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:55:28,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:55:28,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:55:28,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080336542] [2022-01-31 22:55:28,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:55:28,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:55:28,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:55:28,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:55:28,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:55:28,774 INFO L87 Difference]: Start difference. First operand 2857 states and 3842 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:30,732 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 [] [2022-01-31 22:55:32,749 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 [] [2022-01-31 22:55:34,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:55:34,182 INFO L93 Difference]: Finished difference Result 5529 states and 7432 transitions. [2022-01-31 22:55:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:55:34,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 280 [2022-01-31 22:55:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:55:34,185 INFO L225 Difference]: With dead ends: 5529 [2022-01-31 22:55:34,185 INFO L226 Difference]: Without dead ends: 2700 [2022-01-31 22:55:34,191 INFO L932 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 [2022-01-31 22:55:34,196 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 119 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:55:34,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 428 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 22:55:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2022-01-31 22:55:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2423. [2022-01-31 22:55:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2418 states have (on average 1.3205128205128205) internal successors, (3193), 2418 states have internal predecessors, (3193), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3197 transitions. [2022-01-31 22:55:34,532 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3197 transitions. Word has length 280 [2022-01-31 22:55:34,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:55:34,532 INFO L470 AbstractCegarLoop]: Abstraction has 2423 states and 3197 transitions. [2022-01-31 22:55:34,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:55:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3197 transitions. [2022-01-31 22:55:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-01-31 22:55:34,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:55:34,536 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:55:34,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-31 22:55:34,536 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:55:34,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:55:34,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1690963225, now seen corresponding path program 2 times [2022-01-31 22:55:34,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:55:34,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318853667] [2022-01-31 22:55:34,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:55:41,165 WARN L228 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:55:55,011 WARN L228 SmtUtils]: Spent 12.49s on a formula simplification. DAG size of input: 193 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:56:08,312 WARN L228 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 193 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:56:16,069 WARN L228 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 22:56:16,690 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:56:16,690 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:56:16,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:56:16,704 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:56:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:56:17,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:56:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:56:17,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:56:17,622 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:56:17,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318853667] [2022-01-31 22:56:17,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [318853667] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:56:17,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:56:17,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-31 22:56:17,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257446182] [2022-01-31 22:56:17,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:56:17,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-31 22:56:17,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:56:17,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-31 22:56:17,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-01-31 22:56:17,623 INFO L87 Difference]: Start difference. First operand 2423 states and 3197 transitions. Second operand has 18 states, 18 states have (on average 10.666666666666666) internal successors, (192), 17 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:56:21,250 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 [] [2022-01-31 22:56:23,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:56:24,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:56:27,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:56:29,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:56:30,617 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 [] [2022-01-31 22:56:36,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:56:36,241 INFO L93 Difference]: Finished difference Result 7620 states and 10042 transitions. [2022-01-31 22:56:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 22:56:36,241 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.666666666666666) internal successors, (192), 17 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-01-31 22:56:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:56:36,247 INFO L225 Difference]: With dead ends: 7620 [2022-01-31 22:56:36,248 INFO L226 Difference]: Without dead ends: 5693 [2022-01-31 22:56:36,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=278, Invalid=1054, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 22:56:36,250 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 1657 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 3966 mSolverCounterSat, 466 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 4434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 3966 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:56:36,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1657 Valid, 3065 Invalid, 4434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 3966 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2022-01-31 22:56:36,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2022-01-31 22:56:36,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 3050. [2022-01-31 22:56:36,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3050 states, 3045 states have (on average 1.3586206896551725) internal successors, (4137), 3045 states have internal predecessors, (4137), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:56:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 4141 transitions. [2022-01-31 22:56:36,721 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 4141 transitions. Word has length 296 [2022-01-31 22:56:36,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:56:36,721 INFO L470 AbstractCegarLoop]: Abstraction has 3050 states and 4141 transitions. [2022-01-31 22:56:36,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.666666666666666) internal successors, (192), 17 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:56:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 4141 transitions. [2022-01-31 22:56:36,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-01-31 22:56:36,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:56:36,724 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:56:36,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-31 22:56:36,724 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:56:36,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:56:36,725 INFO L85 PathProgramCache]: Analyzing trace with hash 588001352, now seen corresponding path program 1 times [2022-01-31 22:56:36,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:56:36,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381100177] [2022-01-31 22:56:36,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:56:36,788 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:56:36,788 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:56:36,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:56:36,822 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:56:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:56:37,149 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:56:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:56:37,511 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:56:37,512 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:56:37,516 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:56:37,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-31 22:56:37,520 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:56:37,523 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:56:37,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:56:37 BoogieIcfgContainer [2022-01-31 22:56:37,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:56:37,570 INFO L158 Benchmark]: Toolchain (without parser) took 534286.72ms. Allocated memory was 205.5MB in the beginning and 412.1MB in the end (delta: 206.6MB). Free memory was 150.5MB in the beginning and 240.5MB in the end (delta: -90.0MB). Peak memory consumption was 297.3MB. Max. memory is 8.0GB. [2022-01-31 22:56:37,570 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 205.5MB. Free memory is still 169.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:56:37,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.13ms. Allocated memory is still 205.5MB. Free memory was 150.3MB in the beginning and 158.5MB in the end (delta: -8.3MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2022-01-31 22:56:37,571 INFO L158 Benchmark]: Boogie Preprocessor took 114.76ms. Allocated memory is still 205.5MB. Free memory was 158.5MB in the beginning and 151.2MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-31 22:56:37,571 INFO L158 Benchmark]: RCFGBuilder took 1207.39ms. Allocated memory is still 205.5MB. Free memory was 151.2MB in the beginning and 74.7MB in the end (delta: 76.5MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. [2022-01-31 22:56:37,571 INFO L158 Benchmark]: TraceAbstraction took 532529.01ms. Allocated memory was 205.5MB in the beginning and 412.1MB in the end (delta: 206.6MB). Free memory was 74.1MB in the beginning and 240.5MB in the end (delta: -166.4MB). Peak memory consumption was 222.1MB. Max. memory is 8.0GB. [2022-01-31 22:56:37,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 205.5MB. Free memory is still 169.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 432.13ms. Allocated memory is still 205.5MB. Free memory was 150.3MB in the beginning and 158.5MB in the end (delta: -8.3MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 114.76ms. Allocated memory is still 205.5MB. Free memory was 158.5MB in the beginning and 151.2MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1207.39ms. Allocated memory is still 205.5MB. Free memory was 151.2MB in the beginning and 74.7MB in the end (delta: 76.5MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. * TraceAbstraction took 532529.01ms. Allocated memory was 205.5MB in the beginning and 412.1MB in the end (delta: 206.6MB). Free memory was 74.1MB in the beginning and 240.5MB in the end (delta: -166.4MB). Peak memory consumption was 222.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1766]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1465. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1105] CALL ssl3_accept(s) [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND FALSE !(s->hit) [L1386] s->state = 8512 [L1388] s->init_num = 0 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND TRUE s->state == 8512 [L1392] EXPR s->s3 [L1392] EXPR (s->s3)->tmp.new_cipher [L1392] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1392] COND TRUE ((s->s3)->tmp.new_cipher)->algorithms & 256UL [L1393] skip = 1 [L1402] s->state = 8528 [L1403] s->init_num = 0 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND TRUE s->state == 8528 [L1407] EXPR s->s3 [L1407] EXPR (s->s3)->tmp.new_cipher [L1407] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1407] l = ((s->s3)->tmp.new_cipher)->algorithms [L1408] EXPR s->options [L1408] COND TRUE s->options & 2097152UL [L1409] EXPR s->s3 [L1409] (s->s3)->tmp.use_rsa_tmp = 1 [L1413] EXPR s->s3 [L1413] (s->s3)->tmp.use_rsa_tmp [L1413] COND TRUE (s->s3)->tmp.use_rsa_tmp [L1431] ret = __VERIFIER_nondet_int() [L1432] COND FALSE !(ret <= 0) [L1449] s->state = 8544 [L1450] s->init_num = 0 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND TRUE s->state == 8544 [L1454] EXPR s->verify_mode [L1454] COND TRUE s->verify_mode & 1 [L1455] EXPR s->session [L1455] EXPR (s->session)->peer [L1455] COND FALSE !((unsigned long )(s->session)->peer != (unsigned long )((void *)0)) [L1465] EXPR s->s3 [L1465] EXPR (s->s3)->tmp.new_cipher [L1465] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1465] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1475] EXPR s->s3 [L1475] (s->s3)->tmp.cert_request = 1 [L1476] ret = __VERIFIER_nondet_int() [L1477] COND FALSE !(ret <= 0) [L1482] s->state = 8448 [L1483] EXPR s->s3 [L1483] (s->s3)->tmp.next_state = 8576 [L1484] s->init_num = 0 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND TRUE s->state == 8448 [L1506] COND FALSE !(num1 > 0L) [L1519] EXPR s->s3 [L1519] EXPR (s->s3)->tmp.next_state [L1519] s->state = (s->s3)->tmp.next_state [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND TRUE s->state == 8576 [L1523] ret = __VERIFIER_nondet_int() [L1524] COND FALSE !(ret <= 0) [L1529] COND FALSE !(ret == 2) [L1532] ret = __VERIFIER_nondet_int() [L1533] COND FALSE !(ret <= 0) [L1538] s->init_num = 0 [L1539] s->state = 8592 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND TRUE s->state == 8592 [L1544] ret = __VERIFIER_nondet_int() [L1545] COND FALSE !(ret <= 0) [L1550] s->state = 8608 [L1551] s->init_num = 0 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND TRUE s->state == 8608 [L1555] ret = __VERIFIER_nondet_int() [L1556] COND FALSE !(ret <= 0) [L1561] s->state = 8640 [L1562] s->init_num = 0 [L1725] EXPR s->s3 [L1725] EXPR (s->s3)->tmp.reuse_message [L1725] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1754] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND TRUE s->state == 8640 [L1566] ret = __VERIFIER_nondet_int() [L1567] COND FALSE !(blastFlag == 4) [L1570] COND FALSE !(blastFlag == 7) [L1573] COND FALSE !(blastFlag == 10) [L1766] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 192 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 532.4s, OverallIterations: 69, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 306.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22 mSolverCounterUnknown, 8398 SdHoareTripleChecker+Valid, 295.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8398 mSDsluCounter, 39647 SdHoareTripleChecker+Invalid, 286.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26706 mSDsCounter, 2793 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39967 IncrementalHoareTripleChecker+Invalid, 42782 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2793 mSolverCounterUnsat, 12941 mSDtfsCounter, 39967 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 644 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 344 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3050occurred in iteration=68, InterpolantAutomatonStates: 386, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 68 MinimizatonAttempts, 9576 StatesRemovedByMinimization, 62 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 22:56:37,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...