/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:42:11,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:42:11,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:42:11,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:42:11,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:42:11,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:42:11,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:42:11,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:42:11,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:42:11,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:42:11,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:42:11,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:42:11,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:42:11,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:42:11,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:42:11,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:42:11,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:42:11,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:42:11,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:42:11,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:42:11,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:42:11,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:42:11,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:42:11,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:42:11,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:42:11,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:42:11,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:42:11,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:42:11,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:42:11,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:42:11,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:42:11,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:42:11,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:42:11,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:42:11,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:42:11,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:42:11,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:42:11,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:42:11,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:42:11,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:42:11,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:42:11,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:42:11,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:42:11,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:42:11,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:42:11,886 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:42:11,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:42:11,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:42:11,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:42:11,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:42:11,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:42:11,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:42:11,887 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:42:11,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:42:11,887 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:42:11,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:42:11,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:42:11,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:42:11,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:42:11,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:42:11,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:42:11,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:42:11,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:42:11,888 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:42:11,888 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:42:12,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:42:12,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:42:12,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:42:12,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:42:12,097 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:42:12,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-02-15 00:42:12,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fbf92ace/105082575c9a4494b1b84f8679a67960/FLAGe3cd68c38 [2022-02-15 00:42:12,569 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:42:12,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-02-15 00:42:12,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fbf92ace/105082575c9a4494b1b84f8679a67960/FLAGe3cd68c38 [2022-02-15 00:42:12,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fbf92ace/105082575c9a4494b1b84f8679a67960 [2022-02-15 00:42:12,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:42:12,925 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:42:12,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:42:12,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:42:12,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:42:12,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:42:12" (1/1) ... [2022-02-15 00:42:12,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6e7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:12, skipping insertion in model container [2022-02-15 00:42:12,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:42:12" (1/1) ... [2022-02-15 00:42:12,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:42:12,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:42:13,301 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.02.i.cil-2.c[72502,72515] [2022-02-15 00:42:13,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:42:13,317 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:42:13,383 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.02.i.cil-2.c[72502,72515] [2022-02-15 00:42:13,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:42:13,395 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:42:13,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13 WrapperNode [2022-02-15 00:42:13,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:42:13,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:42:13,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:42:13,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:42:13,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:42:13,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:42:13,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:42:13,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:42:13,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (1/1) ... [2022-02-15 00:42:13,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:42:13,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:13,548 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) [2022-02-15 00:42:13,571 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 [2022-02-15 00:42:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:42:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:42:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:42:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:42:13,599 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:42:13,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:42:13,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:42:13,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:42:13,599 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:42:13,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:42:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:42:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:42:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:42:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:42:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:42:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:42:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:42:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:42:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:42:13,725 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:42:13,726 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:42:16,049 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:42:16,324 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:42:16,325 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:42:16,333 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:42:16,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:42:16,345 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:42:16,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:42:16 BoogieIcfgContainer [2022-02-15 00:42:16,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:42:16,347 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:42:16,347 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:42:16,348 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:42:16,350 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:42:16" (1/1) ... [2022-02-15 00:42:16,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:42:16 BasicIcfg [2022-02-15 00:42:16,422 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:42:16,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:42:16,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:42:16,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:42:16,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:42:12" (1/4) ... [2022-02-15 00:42:16,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a4792a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:42:16, skipping insertion in model container [2022-02-15 00:42:16,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:42:13" (2/4) ... [2022-02-15 00:42:16,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a4792a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:42:16, skipping insertion in model container [2022-02-15 00:42:16,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:42:16" (3/4) ... [2022-02-15 00:42:16,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a4792a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:42:16, skipping insertion in model container [2022-02-15 00:42:16,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:42:16" (4/4) ... [2022-02-15 00:42:16,427 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-2.cJordan [2022-02-15 00:42:16,431 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:42:16,431 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:42:16,461 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:42:16,466 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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=FAST_UPR [2022-02-15 00:42:16,466 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:42:16,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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) [2022-02-15 00:42:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-15 00:42:16,501 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:16,502 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, 1, 1] [2022-02-15 00:42:16,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:16,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:16,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1355699347, now seen corresponding path program 1 times [2022-02-15 00:42:16,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:16,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945648940] [2022-02-15 00:42:16,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:16,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:16,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:16,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:16,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945648940] [2022-02-15 00:42:16,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945648940] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:16,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:16,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:16,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411960518] [2022-02-15 00:42:16,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:16,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:16,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:16,988 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:19,017 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 [] [2022-02-15 00:42:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:19,582 INFO L93 Difference]: Finished difference Result 277 states and 458 transitions. [2022-02-15 00:42:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:19,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-02-15 00:42:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:19,591 INFO L225 Difference]: With dead ends: 277 [2022-02-15 00:42:19,591 INFO L226 Difference]: Without dead ends: 251 [2022-02-15 00:42:19,592 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 [2022-02-15 00:42:19,594 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 140 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:19,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 433 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:42:19,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-02-15 00:42:19,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 180. [2022-02-15 00:42:19,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6057142857142856) internal successors, (281), 175 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 285 transitions. [2022-02-15 00:42:19,626 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 285 transitions. Word has length 52 [2022-02-15 00:42:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:19,627 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 285 transitions. [2022-02-15 00:42:19,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:19,627 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 285 transitions. [2022-02-15 00:42:19,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-15 00:42:19,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:19,629 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, 1, 1, 1] [2022-02-15 00:42:19,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:42:19,629 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:19,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:19,629 INFO L85 PathProgramCache]: Analyzing trace with hash 923942425, now seen corresponding path program 1 times [2022-02-15 00:42:19,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:19,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466495779] [2022-02-15 00:42:19,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:19,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:19,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:19,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466495779] [2022-02-15 00:42:19,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466495779] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:19,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:19,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:19,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348248105] [2022-02-15 00:42:19,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:19,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:19,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:19,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:19,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:19,786 INFO L87 Difference]: Start difference. First operand 180 states and 285 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:21,800 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 [] [2022-02-15 00:42:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:22,156 INFO L93 Difference]: Finished difference Result 208 states and 325 transitions. [2022-02-15 00:42:22,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:22,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-02-15 00:42:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:22,158 INFO L225 Difference]: With dead ends: 208 [2022-02-15 00:42:22,158 INFO L226 Difference]: Without dead ends: 208 [2022-02-15 00:42:22,158 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 [2022-02-15 00:42:22,159 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 22 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:22,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 451 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-02-15 00:42:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 191. [2022-02-15 00:42:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.6129032258064515) internal successors, (300), 186 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 304 transitions. [2022-02-15 00:42:22,171 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 304 transitions. Word has length 53 [2022-02-15 00:42:22,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:22,171 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 304 transitions. [2022-02-15 00:42:22,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:22,172 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 304 transitions. [2022-02-15 00:42:22,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:42:22,179 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:22,179 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, 1, 1, 1] [2022-02-15 00:42:22,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:42:22,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:22,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:22,180 INFO L85 PathProgramCache]: Analyzing trace with hash -965147185, now seen corresponding path program 1 times [2022-02-15 00:42:22,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:22,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949793304] [2022-02-15 00:42:22,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:22,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:22,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:22,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949793304] [2022-02-15 00:42:22,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949793304] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:22,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:22,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:22,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267167288] [2022-02-15 00:42:22,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:22,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:22,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:22,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:22,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:22,358 INFO L87 Difference]: Start difference. First operand 191 states and 304 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) [2022-02-15 00:42:23,553 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 [] [2022-02-15 00:42:25,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:27,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:29,610 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 [] [2022-02-15 00:42:29,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:29,934 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-02-15 00:42:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:29,935 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 [2022-02-15 00:42:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:29,936 INFO L225 Difference]: With dead ends: 208 [2022-02-15 00:42:29,936 INFO L226 Difference]: Without dead ends: 208 [2022-02-15 00:42:29,936 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 [2022-02-15 00:42:29,937 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:29,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 351 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-15 00:42:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-02-15 00:42:29,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 191. [2022-02-15 00:42:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.60752688172043) internal successors, (299), 186 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 303 transitions. [2022-02-15 00:42:29,952 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 303 transitions. Word has length 66 [2022-02-15 00:42:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:29,952 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 303 transitions. [2022-02-15 00:42:29,952 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) [2022-02-15 00:42:29,952 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 303 transitions. [2022-02-15 00:42:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:42:29,953 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:29,953 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, 1, 1, 1] [2022-02-15 00:42:29,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:42:29,953 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:29,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash 328113503, now seen corresponding path program 1 times [2022-02-15 00:42:29,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:29,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88667688] [2022-02-15 00:42:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:29,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:30,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:30,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88667688] [2022-02-15 00:42:30,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88667688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:30,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:30,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:30,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038478803] [2022-02-15 00:42:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:30,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:30,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:30,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:30,109 INFO L87 Difference]: Start difference. First operand 191 states and 303 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) [2022-02-15 00:42:32,117 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 [] [2022-02-15 00:42:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:32,609 INFO L93 Difference]: Finished difference Result 304 states and 475 transitions. [2022-02-15 00:42:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:32,609 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 [2022-02-15 00:42:32,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:32,610 INFO L225 Difference]: With dead ends: 304 [2022-02-15 00:42:32,610 INFO L226 Difference]: Without dead ends: 304 [2022-02-15 00:42:32,611 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 [2022-02-15 00:42:32,621 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 142 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:32,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:42:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-15 00:42:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 202. [2022-02-15 00:42:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5888324873096447) internal successors, (313), 197 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:32,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 317 transitions. [2022-02-15 00:42:32,631 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 317 transitions. Word has length 67 [2022-02-15 00:42:32,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:32,631 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 317 transitions. [2022-02-15 00:42:32,631 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) [2022-02-15 00:42:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 317 transitions. [2022-02-15 00:42:32,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:42:32,632 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:32,632 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, 1, 1, 1] [2022-02-15 00:42:32,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:42:32,632 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:32,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:32,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1220763967, now seen corresponding path program 1 times [2022-02-15 00:42:32,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:32,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006491727] [2022-02-15 00:42:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:32,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:32,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:32,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:32,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006491727] [2022-02-15 00:42:32,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006491727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:32,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:32,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:32,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702305442] [2022-02-15 00:42:32,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:32,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:32,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:32,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:32,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:32,761 INFO L87 Difference]: Start difference. First operand 202 states and 317 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) [2022-02-15 00:42:34,769 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 [] [2022-02-15 00:42:35,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:35,146 INFO L93 Difference]: Finished difference Result 218 states and 336 transitions. [2022-02-15 00:42:35,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:35,147 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 [2022-02-15 00:42:35,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:35,148 INFO L225 Difference]: With dead ends: 218 [2022-02-15 00:42:35,148 INFO L226 Difference]: Without dead ends: 218 [2022-02-15 00:42:35,148 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 [2022-02-15 00:42:35,148 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 26 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:35,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-02-15 00:42:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2022-02-15 00:42:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.583756345177665) internal successors, (312), 197 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 316 transitions. [2022-02-15 00:42:35,154 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 316 transitions. Word has length 67 [2022-02-15 00:42:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:35,155 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 316 transitions. [2022-02-15 00:42:35,155 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) [2022-02-15 00:42:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 316 transitions. [2022-02-15 00:42:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:42:35,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:35,155 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, 1, 1, 1] [2022-02-15 00:42:35,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:42:35,156 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:35,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:35,156 INFO L85 PathProgramCache]: Analyzing trace with hash 669903327, now seen corresponding path program 1 times [2022-02-15 00:42:35,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:35,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096134732] [2022-02-15 00:42:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:35,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:35,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:35,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096134732] [2022-02-15 00:42:35,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096134732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:35,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:35,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:35,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297168515] [2022-02-15 00:42:35,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:35,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:35,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:35,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:35,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:35,295 INFO L87 Difference]: Start difference. First operand 202 states and 316 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) [2022-02-15 00:42:37,311 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 [] [2022-02-15 00:42:37,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:37,625 INFO L93 Difference]: Finished difference Result 217 states and 334 transitions. [2022-02-15 00:42:37,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:37,626 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 [2022-02-15 00:42:37,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:37,627 INFO L225 Difference]: With dead ends: 217 [2022-02-15 00:42:37,627 INFO L226 Difference]: Without dead ends: 217 [2022-02-15 00:42:37,627 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 [2022-02-15 00:42:37,628 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 19 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:37,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 457 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-15 00:42:37,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 202. [2022-02-15 00:42:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5786802030456852) internal successors, (311), 197 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:37,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 315 transitions. [2022-02-15 00:42:37,633 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 315 transitions. Word has length 67 [2022-02-15 00:42:37,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:37,633 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 315 transitions. [2022-02-15 00:42:37,633 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) [2022-02-15 00:42:37,633 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 315 transitions. [2022-02-15 00:42:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:42:37,634 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:37,634 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, 1, 1, 1] [2022-02-15 00:42:37,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:42:37,634 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1997406977, now seen corresponding path program 1 times [2022-02-15 00:42:37,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:37,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928905873] [2022-02-15 00:42:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:37,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:37,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:37,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928905873] [2022-02-15 00:42:37,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928905873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:37,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:37,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:37,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602467934] [2022-02-15 00:42:37,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:37,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:37,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:37,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:37,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:37,740 INFO L87 Difference]: Start difference. First operand 202 states and 315 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) [2022-02-15 00:42:39,755 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 [] [2022-02-15 00:42:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:40,171 INFO L93 Difference]: Finished difference Result 304 states and 470 transitions. [2022-02-15 00:42:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:40,172 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 [2022-02-15 00:42:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:40,173 INFO L225 Difference]: With dead ends: 304 [2022-02-15 00:42:40,173 INFO L226 Difference]: Without dead ends: 304 [2022-02-15 00:42:40,173 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 [2022-02-15 00:42:40,174 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:40,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-15 00:42:40,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 208. [2022-02-15 00:42:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5763546798029557) internal successors, (320), 203 states have internal predecessors, (320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 324 transitions. [2022-02-15 00:42:40,179 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 324 transitions. Word has length 67 [2022-02-15 00:42:40,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:40,179 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 324 transitions. [2022-02-15 00:42:40,179 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) [2022-02-15 00:42:40,179 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 324 transitions. [2022-02-15 00:42:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 00:42:40,179 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:40,180 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, 1, 1, 1] [2022-02-15 00:42:40,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:42:40,180 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:40,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:40,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1264278193, now seen corresponding path program 1 times [2022-02-15 00:42:40,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:40,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279171443] [2022-02-15 00:42:40,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:40,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:40,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:40,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:40,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279171443] [2022-02-15 00:42:40,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279171443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:40,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:40,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:40,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7568532] [2022-02-15 00:42:40,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:40,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:40,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:40,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:40,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:40,317 INFO L87 Difference]: Start difference. First operand 208 states and 324 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) [2022-02-15 00:42:42,329 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 [] [2022-02-15 00:42:42,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:42,765 INFO L93 Difference]: Finished difference Result 304 states and 467 transitions. [2022-02-15 00:42:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:42,766 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 [2022-02-15 00:42:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:42,767 INFO L225 Difference]: With dead ends: 304 [2022-02-15 00:42:42,767 INFO L226 Difference]: Without dead ends: 304 [2022-02-15 00:42:42,767 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 [2022-02-15 00:42:42,767 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 138 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:42,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-15 00:42:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 208. [2022-02-15 00:42:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.561576354679803) internal successors, (317), 203 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 321 transitions. [2022-02-15 00:42:42,772 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 321 transitions. Word has length 68 [2022-02-15 00:42:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:42,772 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 321 transitions. [2022-02-15 00:42:42,772 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) [2022-02-15 00:42:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 321 transitions. [2022-02-15 00:42:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 00:42:42,773 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:42,773 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, 1, 1, 1] [2022-02-15 00:42:42,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:42:42,773 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:42,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:42,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1953334341, now seen corresponding path program 1 times [2022-02-15 00:42:42,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:42,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534622685] [2022-02-15 00:42:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:42,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:42,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:42,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:42,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534622685] [2022-02-15 00:42:42,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534622685] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:42,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:42,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:42,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421114266] [2022-02-15 00:42:42,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:42,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:42,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:42,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:42,893 INFO L87 Difference]: Start difference. First operand 208 states and 321 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:44,907 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 [] [2022-02-15 00:42:45,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:45,243 INFO L93 Difference]: Finished difference Result 221 states and 337 transitions. [2022-02-15 00:42:45,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:45,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-15 00:42:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:45,245 INFO L225 Difference]: With dead ends: 221 [2022-02-15 00:42:45,245 INFO L226 Difference]: Without dead ends: 221 [2022-02-15 00:42:45,245 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 [2022-02-15 00:42:45,245 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:45,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-15 00:42:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 208. [2022-02-15 00:42:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5566502463054188) internal successors, (316), 203 states have internal predecessors, (316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:45,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 320 transitions. [2022-02-15 00:42:45,249 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 320 transitions. Word has length 69 [2022-02-15 00:42:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:45,250 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 320 transitions. [2022-02-15 00:42:45,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:45,250 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 320 transitions. [2022-02-15 00:42:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 00:42:45,250 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:45,250 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, 1, 1, 1] [2022-02-15 00:42:45,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:42:45,251 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:45,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:45,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1734108460, now seen corresponding path program 1 times [2022-02-15 00:42:45,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:45,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376013529] [2022-02-15 00:42:45,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:45,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:45,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:45,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:45,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376013529] [2022-02-15 00:42:45,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376013529] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:45,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:45,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:45,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108495578] [2022-02-15 00:42:45,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:45,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:45,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:45,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:45,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:45,350 INFO L87 Difference]: Start difference. First operand 208 states and 320 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:47,363 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 [] [2022-02-15 00:42:47,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:47,661 INFO L93 Difference]: Finished difference Result 211 states and 323 transitions. [2022-02-15 00:42:47,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:47,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-15 00:42:47,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:47,662 INFO L225 Difference]: With dead ends: 211 [2022-02-15 00:42:47,662 INFO L226 Difference]: Without dead ends: 211 [2022-02-15 00:42:47,662 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 [2022-02-15 00:42:47,663 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:47,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:47,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-02-15 00:42:47,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2022-02-15 00:42:47,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5517241379310345) internal successors, (315), 203 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 319 transitions. [2022-02-15 00:42:47,666 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 319 transitions. Word has length 70 [2022-02-15 00:42:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:47,667 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 319 transitions. [2022-02-15 00:42:47,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 319 transitions. [2022-02-15 00:42:47,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 00:42:47,667 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:47,667 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, 1, 1] [2022-02-15 00:42:47,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:42:47,668 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash 338203677, now seen corresponding path program 1 times [2022-02-15 00:42:47,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:47,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345393470] [2022-02-15 00:42:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:47,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:47,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:47,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345393470] [2022-02-15 00:42:47,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345393470] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:47,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:47,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:47,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023751077] [2022-02-15 00:42:47,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:47,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:47,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:47,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:47,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:47,753 INFO L87 Difference]: Start difference. First operand 208 states and 319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:49,767 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 [] [2022-02-15 00:42:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:50,113 INFO L93 Difference]: Finished difference Result 251 states and 382 transitions. [2022-02-15 00:42:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-15 00:42:50,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:50,115 INFO L225 Difference]: With dead ends: 251 [2022-02-15 00:42:50,115 INFO L226 Difference]: Without dead ends: 251 [2022-02-15 00:42:50,115 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 [2022-02-15 00:42:50,117 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 33 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:50,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 475 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-02-15 00:42:50,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 230. [2022-02-15 00:42:50,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5555555555555556) internal successors, (350), 225 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) [2022-02-15 00:42:50,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 354 transitions. [2022-02-15 00:42:50,121 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 354 transitions. Word has length 70 [2022-02-15 00:42:50,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:50,121 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 354 transitions. [2022-02-15 00:42:50,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:50,121 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 354 transitions. [2022-02-15 00:42:50,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-15 00:42:50,122 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:50,122 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:50,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:42:50,123 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:50,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:50,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1716885067, now seen corresponding path program 1 times [2022-02-15 00:42:50,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:50,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025206524] [2022-02-15 00:42:50,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:50,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:50,237 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:50,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:50,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025206524] [2022-02-15 00:42:50,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025206524] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:50,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:50,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:50,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343369366] [2022-02-15 00:42:50,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:50,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:50,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:50,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:50,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:50,238 INFO L87 Difference]: Start difference. First operand 230 states and 354 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) [2022-02-15 00:42:52,246 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 [] [2022-02-15 00:42:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:52,684 INFO L93 Difference]: Finished difference Result 367 states and 572 transitions. [2022-02-15 00:42:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:52,685 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 [2022-02-15 00:42:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:52,698 INFO L225 Difference]: With dead ends: 367 [2022-02-15 00:42:52,698 INFO L226 Difference]: Without dead ends: 367 [2022-02-15 00:42:52,699 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 [2022-02-15 00:42:52,700 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 135 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:52,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 536 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 569 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:52,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-02-15 00:42:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 246. [2022-02-15 00:42:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5435684647302905) internal successors, (372), 241 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:52,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 376 transitions. [2022-02-15 00:42:52,719 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 376 transitions. Word has length 83 [2022-02-15 00:42:52,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:52,720 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 376 transitions. [2022-02-15 00:42:52,721 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) [2022-02-15 00:42:52,721 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 376 transitions. [2022-02-15 00:42:52,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 00:42:52,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:52,721 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, 1] [2022-02-15 00:42:52,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:42:52,721 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:52,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:52,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1535582141, now seen corresponding path program 1 times [2022-02-15 00:42:52,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:52,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666879607] [2022-02-15 00:42:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:52,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:52,815 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-15 00:42:52,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:52,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666879607] [2022-02-15 00:42:52,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666879607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:52,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:52,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:52,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220299348] [2022-02-15 00:42:52,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:52,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:52,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:52,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:52,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:52,817 INFO L87 Difference]: Start difference. First operand 246 states and 376 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:54,825 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 [] [2022-02-15 00:42:55,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:55,176 INFO L93 Difference]: Finished difference Result 258 states and 390 transitions. [2022-02-15 00:42:55,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:55,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-15 00:42:55,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:55,177 INFO L225 Difference]: With dead ends: 258 [2022-02-15 00:42:55,177 INFO L226 Difference]: Without dead ends: 258 [2022-02-15 00:42:55,177 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 [2022-02-15 00:42:55,178 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 20 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:55,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 540 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:55,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-02-15 00:42:55,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2022-02-15 00:42:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5394190871369295) internal successors, (371), 241 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 375 transitions. [2022-02-15 00:42:55,182 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 375 transitions. Word has length 84 [2022-02-15 00:42:55,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:55,182 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 375 transitions. [2022-02-15 00:42:55,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 375 transitions. [2022-02-15 00:42:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 00:42:55,183 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:55,183 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, 1, 1] [2022-02-15 00:42:55,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:42:55,183 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:55,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2086442781, now seen corresponding path program 1 times [2022-02-15 00:42:55,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:55,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092168596] [2022-02-15 00:42:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:55,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:55,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:55,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:55,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092168596] [2022-02-15 00:42:55,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092168596] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:55,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:55,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:55,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631534627] [2022-02-15 00:42:55,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:55,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:55,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:55,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:55,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:55,263 INFO L87 Difference]: Start difference. First operand 246 states and 375 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) [2022-02-15 00:42:57,277 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 [] [2022-02-15 00:42:57,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:57,730 INFO L93 Difference]: Finished difference Result 341 states and 517 transitions. [2022-02-15 00:42:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:57,731 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 [2022-02-15 00:42:57,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:57,732 INFO L225 Difference]: With dead ends: 341 [2022-02-15 00:42:57,732 INFO L226 Difference]: Without dead ends: 341 [2022-02-15 00:42:57,732 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 [2022-02-15 00:42:57,732 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 133 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:57,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 318 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-02-15 00:42:57,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 247. [2022-02-15 00:42:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5289256198347108) internal successors, (370), 242 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 374 transitions. [2022-02-15 00:42:57,736 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 374 transitions. Word has length 84 [2022-02-15 00:42:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:57,737 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 374 transitions. [2022-02-15 00:42:57,737 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) [2022-02-15 00:42:57,737 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 374 transitions. [2022-02-15 00:42:57,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 00:42:57,737 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:57,737 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, 1, 1] [2022-02-15 00:42:57,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:42:57,738 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:57,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 710751120, now seen corresponding path program 1 times [2022-02-15 00:42:57,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:57,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542277210] [2022-02-15 00:42:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:57,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:57,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:57,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542277210] [2022-02-15 00:42:57,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542277210] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:57,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:57,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:57,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741997075] [2022-02-15 00:42:57,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:57,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:57,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:57,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:57,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:57,823 INFO L87 Difference]: Start difference. First operand 247 states and 374 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:59,839 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 [] [2022-02-15 00:43:00,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:00,189 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2022-02-15 00:43:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:00,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-15 00:43:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:00,190 INFO L225 Difference]: With dead ends: 265 [2022-02-15 00:43:00,191 INFO L226 Difference]: Without dead ends: 265 [2022-02-15 00:43:00,191 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 [2022-02-15 00:43:00,191 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 40 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:00,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 481 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:00,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-15 00:43:00,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2022-02-15 00:43:00,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.524793388429752) internal successors, (369), 242 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:00,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 373 transitions. [2022-02-15 00:43:00,195 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 373 transitions. Word has length 85 [2022-02-15 00:43:00,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:00,195 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 373 transitions. [2022-02-15 00:43:00,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 373 transitions. [2022-02-15 00:43:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 00:43:00,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:00,196 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:00,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:43:00,196 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1818163604, now seen corresponding path program 1 times [2022-02-15 00:43:00,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:00,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262256777] [2022-02-15 00:43:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:00,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:00,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:00,286 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:00,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:00,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262256777] [2022-02-15 00:43:00,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262256777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:00,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:00,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:00,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718464496] [2022-02-15 00:43:00,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:00,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:00,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:00,288 INFO L87 Difference]: Start difference. First operand 247 states and 373 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) [2022-02-15 00:43:02,303 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 [] [2022-02-15 00:43:02,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:02,656 INFO L93 Difference]: Finished difference Result 265 states and 397 transitions. [2022-02-15 00:43:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:02,656 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 87 [2022-02-15 00:43:02,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:02,657 INFO L225 Difference]: With dead ends: 265 [2022-02-15 00:43:02,657 INFO L226 Difference]: Without dead ends: 265 [2022-02-15 00:43:02,658 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 [2022-02-15 00:43:02,658 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 37 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:02,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 481 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-15 00:43:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2022-02-15 00:43:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5206611570247934) internal successors, (368), 242 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 372 transitions. [2022-02-15 00:43:02,663 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 372 transitions. Word has length 87 [2022-02-15 00:43:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:02,663 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 372 transitions. [2022-02-15 00:43:02,664 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) [2022-02-15 00:43:02,664 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 372 transitions. [2022-02-15 00:43:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-15 00:43:02,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:02,664 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, 1, 1] [2022-02-15 00:43:02,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:43:02,665 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash 989898955, now seen corresponding path program 1 times [2022-02-15 00:43:02,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:02,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244621984] [2022-02-15 00:43:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:02,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:02,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:02,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:02,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244621984] [2022-02-15 00:43:02,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244621984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:02,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:02,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:02,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190679275] [2022-02-15 00:43:02,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:02,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:02,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:02,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:02,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:02,768 INFO L87 Difference]: Start difference. First operand 247 states and 372 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:04,776 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 [] [2022-02-15 00:43:05,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:05,066 INFO L93 Difference]: Finished difference Result 255 states and 383 transitions. [2022-02-15 00:43:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:05,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-02-15 00:43:05,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:05,067 INFO L225 Difference]: With dead ends: 255 [2022-02-15 00:43:05,067 INFO L226 Difference]: Without dead ends: 255 [2022-02-15 00:43:05,067 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 [2022-02-15 00:43:05,068 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 28 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:05,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 495 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-15 00:43:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 247. [2022-02-15 00:43:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5165289256198347) internal successors, (367), 242 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 371 transitions. [2022-02-15 00:43:05,071 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 371 transitions. Word has length 88 [2022-02-15 00:43:05,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:05,072 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 371 transitions. [2022-02-15 00:43:05,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:05,072 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 371 transitions. [2022-02-15 00:43:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 00:43:05,072 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:05,072 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, 1, 1] [2022-02-15 00:43:05,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:43:05,073 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:05,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:05,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176068, now seen corresponding path program 1 times [2022-02-15 00:43:05,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:05,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223333287] [2022-02-15 00:43:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:05,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:43:05,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:05,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223333287] [2022-02-15 00:43:05,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223333287] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:05,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:05,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:05,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303900318] [2022-02-15 00:43:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:05,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:05,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:05,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:05,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:05,174 INFO L87 Difference]: Start difference. First operand 247 states and 371 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) [2022-02-15 00:43:07,185 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 [] [2022-02-15 00:43:07,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:07,564 INFO L93 Difference]: Finished difference Result 339 states and 510 transitions. [2022-02-15 00:43:07,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:07,565 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 92 [2022-02-15 00:43:07,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:07,566 INFO L225 Difference]: With dead ends: 339 [2022-02-15 00:43:07,566 INFO L226 Difference]: Without dead ends: 339 [2022-02-15 00:43:07,566 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 [2022-02-15 00:43:07,566 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 73 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:07,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 443 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-02-15 00:43:07,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2022-02-15 00:43:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 285 states have (on average 1.543859649122807) internal successors, (440), 285 states have internal predecessors, (440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:07,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 444 transitions. [2022-02-15 00:43:07,570 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 444 transitions. Word has length 92 [2022-02-15 00:43:07,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:07,570 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 444 transitions. [2022-02-15 00:43:07,571 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) [2022-02-15 00:43:07,571 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 444 transitions. [2022-02-15 00:43:07,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 00:43:07,571 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:07,571 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, 1, 1] [2022-02-15 00:43:07,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:43:07,572 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:07,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1663097307, now seen corresponding path program 1 times [2022-02-15 00:43:07,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:07,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947027092] [2022-02-15 00:43:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:07,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:07,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:43:07,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:07,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947027092] [2022-02-15 00:43:07,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947027092] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:07,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:07,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:07,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063188742] [2022-02-15 00:43:07,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:07,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:07,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:07,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:07,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:07,677 INFO L87 Difference]: Start difference. First operand 290 states and 444 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) [2022-02-15 00:43:09,683 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 [] [2022-02-15 00:43:10,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:10,110 INFO L93 Difference]: Finished difference Result 384 states and 586 transitions. [2022-02-15 00:43:10,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:10,110 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 92 [2022-02-15 00:43:10,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:10,111 INFO L225 Difference]: With dead ends: 384 [2022-02-15 00:43:10,111 INFO L226 Difference]: Without dead ends: 382 [2022-02-15 00:43:10,112 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 [2022-02-15 00:43:10,112 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 107 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:10,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 328 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:10,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-02-15 00:43:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 314. [2022-02-15 00:43:10,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5760517799352751) internal successors, (487), 309 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 491 transitions. [2022-02-15 00:43:10,116 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 491 transitions. Word has length 92 [2022-02-15 00:43:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:10,116 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 491 transitions. [2022-02-15 00:43:10,116 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) [2022-02-15 00:43:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 491 transitions. [2022-02-15 00:43:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-02-15 00:43:10,117 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:10,117 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, 1, 1] [2022-02-15 00:43:10,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:43:10,118 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:10,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1099971198, now seen corresponding path program 1 times [2022-02-15 00:43:10,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:10,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603593344] [2022-02-15 00:43:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:10,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:10,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:43:10,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:10,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603593344] [2022-02-15 00:43:10,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603593344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:10,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:10,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:10,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880108781] [2022-02-15 00:43:10,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:10,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:10,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:10,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:10,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:10,237 INFO L87 Difference]: Start difference. First operand 314 states and 491 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) [2022-02-15 00:43:12,251 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 [] [2022-02-15 00:43:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:12,635 INFO L93 Difference]: Finished difference Result 421 states and 649 transitions. [2022-02-15 00:43:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:12,636 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 120 [2022-02-15 00:43:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:12,637 INFO L225 Difference]: With dead ends: 421 [2022-02-15 00:43:12,637 INFO L226 Difference]: Without dead ends: 421 [2022-02-15 00:43:12,637 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 [2022-02-15 00:43:12,637 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 115 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:12,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 330 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:12,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-15 00:43:12,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 346. [2022-02-15 00:43:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 341 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 542 transitions. [2022-02-15 00:43:12,642 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 542 transitions. Word has length 120 [2022-02-15 00:43:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:12,642 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 542 transitions. [2022-02-15 00:43:12,642 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) [2022-02-15 00:43:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 542 transitions. [2022-02-15 00:43:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 00:43:12,643 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:12,643 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:12,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:43:12,644 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:12,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:12,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1373336550, now seen corresponding path program 1 times [2022-02-15 00:43:12,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:12,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450005599] [2022-02-15 00:43:12,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:12,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:12,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:12,729 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:43:12,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:12,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450005599] [2022-02-15 00:43:12,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450005599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:12,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:12,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:43:12,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875077441] [2022-02-15 00:43:12,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:12,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:43:12,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:12,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:43:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:43:12,730 INFO L87 Difference]: Start difference. First operand 346 states and 542 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:14,737 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 [] [2022-02-15 00:43:15,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:15,129 INFO L93 Difference]: Finished difference Result 660 states and 1043 transitions. [2022-02-15 00:43:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:43:15,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:43:15,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:15,138 INFO L225 Difference]: With dead ends: 660 [2022-02-15 00:43:15,138 INFO L226 Difference]: Without dead ends: 660 [2022-02-15 00:43:15,138 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 [2022-02-15 00:43:15,138 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:15,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-02-15 00:43:15,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2022-02-15 00:43:15,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 655 states have (on average 1.5862595419847327) internal successors, (1039), 655 states have internal predecessors, (1039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1043 transitions. [2022-02-15 00:43:15,168 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1043 transitions. Word has length 132 [2022-02-15 00:43:15,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:15,168 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 1043 transitions. [2022-02-15 00:43:15,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1043 transitions. [2022-02-15 00:43:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 00:43:15,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:15,170 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:15,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:43:15,170 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:15,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:15,170 INFO L85 PathProgramCache]: Analyzing trace with hash 348642629, now seen corresponding path program 1 times [2022-02-15 00:43:15,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:15,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404381735] [2022-02-15 00:43:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:15,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:43:15,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:15,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404381735] [2022-02-15 00:43:15,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404381735] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:15,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:15,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:43:15,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374205636] [2022-02-15 00:43:15,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:15,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:43:15,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:43:15,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:43:15,257 INFO L87 Difference]: Start difference. First operand 660 states and 1043 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:17,264 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 [] [2022-02-15 00:43:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:17,529 INFO L93 Difference]: Finished difference Result 933 states and 1473 transitions. [2022-02-15 00:43:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:43:17,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-15 00:43:17,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:17,534 INFO L225 Difference]: With dead ends: 933 [2022-02-15 00:43:17,534 INFO L226 Difference]: Without dead ends: 933 [2022-02-15 00:43:17,534 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 [2022-02-15 00:43:17,534 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:17,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-02-15 00:43:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 933. [2022-02-15 00:43:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.5829741379310345) internal successors, (1469), 928 states have internal predecessors, (1469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1473 transitions. [2022-02-15 00:43:17,545 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1473 transitions. Word has length 132 [2022-02-15 00:43:17,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:17,545 INFO L470 AbstractCegarLoop]: Abstraction has 933 states and 1473 transitions. [2022-02-15 00:43:17,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:17,545 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1473 transitions. [2022-02-15 00:43:17,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 00:43:17,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:17,547 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:17,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:43:17,547 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:17,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:17,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2018872788, now seen corresponding path program 1 times [2022-02-15 00:43:17,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:17,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427210162] [2022-02-15 00:43:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:17,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:17,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-15 00:43:17,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:17,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427210162] [2022-02-15 00:43:17,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427210162] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:17,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:17,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:43:17,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750089203] [2022-02-15 00:43:17,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:17,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:43:17,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:17,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:43:17,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:43:17,663 INFO L87 Difference]: Start difference. First operand 933 states and 1473 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:19,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:21,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:23,462 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 [] [2022-02-15 00:43:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:23,687 INFO L93 Difference]: Finished difference Result 960 states and 1508 transitions. [2022-02-15 00:43:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:43:23,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-15 00:43:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:23,689 INFO L225 Difference]: With dead ends: 960 [2022-02-15 00:43:23,689 INFO L226 Difference]: Without dead ends: 960 [2022-02-15 00:43:23,690 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 [2022-02-15 00:43:23,690 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:23,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:43:23,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-02-15 00:43:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-02-15 00:43:23,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.574869109947644) internal successors, (1504), 955 states have internal predecessors, (1504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1508 transitions. [2022-02-15 00:43:23,699 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1508 transitions. Word has length 133 [2022-02-15 00:43:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:23,700 INFO L470 AbstractCegarLoop]: Abstraction has 960 states and 1508 transitions. [2022-02-15 00:43:23,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1508 transitions. [2022-02-15 00:43:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 00:43:23,701 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:23,701 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:23,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:43:23,701 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash -942319379, now seen corresponding path program 1 times [2022-02-15 00:43:23,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:23,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076603477] [2022-02-15 00:43:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:23,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-15 00:43:23,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:23,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076603477] [2022-02-15 00:43:23,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076603477] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:23,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:23,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:43:23,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951426950] [2022-02-15 00:43:23,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:23,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:43:23,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:23,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:43:23,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:43:23,776 INFO L87 Difference]: Start difference. First operand 960 states and 1508 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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) [2022-02-15 00:43:25,783 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 [] [2022-02-15 00:43:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:25,998 INFO L93 Difference]: Finished difference Result 962 states and 1510 transitions. [2022-02-15 00:43:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:43:25,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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 133 [2022-02-15 00:43:25,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:26,001 INFO L225 Difference]: With dead ends: 962 [2022-02-15 00:43:26,001 INFO L226 Difference]: Without dead ends: 962 [2022-02-15 00:43:26,001 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 [2022-02-15 00:43:26,002 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:26,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:43:26,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-02-15 00:43:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-02-15 00:43:26,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.573667711598746) internal successors, (1506), 957 states have internal predecessors, (1506), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1510 transitions. [2022-02-15 00:43:26,012 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1510 transitions. Word has length 133 [2022-02-15 00:43:26,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:26,012 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1510 transitions. [2022-02-15 00:43:26,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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) [2022-02-15 00:43:26,012 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1510 transitions. [2022-02-15 00:43:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-15 00:43:26,014 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:26,014 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:26,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:43:26,014 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:26,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1318648105, now seen corresponding path program 1 times [2022-02-15 00:43:26,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:26,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27579366] [2022-02-15 00:43:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:26,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-15 00:43:26,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:26,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27579366] [2022-02-15 00:43:26,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27579366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:26,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:26,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:26,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681370445] [2022-02-15 00:43:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:26,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:26,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:26,145 INFO L87 Difference]: Start difference. First operand 962 states and 1510 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:28,155 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 [] [2022-02-15 00:43:28,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:28,604 INFO L93 Difference]: Finished difference Result 1063 states and 1638 transitions. [2022-02-15 00:43:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-15 00:43:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:28,607 INFO L225 Difference]: With dead ends: 1063 [2022-02-15 00:43:28,607 INFO L226 Difference]: Without dead ends: 1063 [2022-02-15 00:43:28,607 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 [2022-02-15 00:43:28,608 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 97 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:28,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 624 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:28,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-02-15 00:43:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 962. [2022-02-15 00:43:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5715778474399165) internal successors, (1504), 957 states have internal predecessors, (1504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1508 transitions. [2022-02-15 00:43:28,623 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1508 transitions. Word has length 196 [2022-02-15 00:43:28,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:28,623 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1508 transitions. [2022-02-15 00:43:28,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:28,624 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1508 transitions. [2022-02-15 00:43:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-15 00:43:28,625 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:28,625 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:28,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:43:28,625 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:28,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1012366808, now seen corresponding path program 1 times [2022-02-15 00:43:28,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:28,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483348573] [2022-02-15 00:43:28,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:28,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:28,726 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-15 00:43:28,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:28,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483348573] [2022-02-15 00:43:28,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483348573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:28,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:28,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:28,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8748025] [2022-02-15 00:43:28,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:28,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:28,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:28,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:28,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:28,727 INFO L87 Difference]: Start difference. First operand 962 states and 1508 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:30,744 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 [] [2022-02-15 00:43:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:31,218 INFO L93 Difference]: Finished difference Result 1053 states and 1622 transitions. [2022-02-15 00:43:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-02-15 00:43:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:31,221 INFO L225 Difference]: With dead ends: 1053 [2022-02-15 00:43:31,221 INFO L226 Difference]: Without dead ends: 1053 [2022-02-15 00:43:31,221 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 [2022-02-15 00:43:31,222 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 89 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:31,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 614 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 586 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:43:31,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-02-15 00:43:31,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 962. [2022-02-15 00:43:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5694879832810866) internal successors, (1502), 957 states have internal predecessors, (1502), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:31,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1506 transitions. [2022-02-15 00:43:31,233 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1506 transitions. Word has length 197 [2022-02-15 00:43:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:31,233 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1506 transitions. [2022-02-15 00:43:31,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:31,234 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1506 transitions. [2022-02-15 00:43:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-02-15 00:43:31,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:31,235 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:31,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:43:31,235 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:31,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2003849284, now seen corresponding path program 1 times [2022-02-15 00:43:31,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:31,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466197028] [2022-02-15 00:43:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:31,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:31,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:31,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466197028] [2022-02-15 00:43:31,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466197028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:31,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:31,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:31,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305361543] [2022-02-15 00:43:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:31,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:31,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:31,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:31,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:31,336 INFO L87 Difference]: Start difference. First operand 962 states and 1506 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:33,355 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 [] [2022-02-15 00:43:33,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:33,733 INFO L93 Difference]: Finished difference Result 1158 states and 1753 transitions. [2022-02-15 00:43:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2022-02-15 00:43:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:33,736 INFO L225 Difference]: With dead ends: 1158 [2022-02-15 00:43:33,736 INFO L226 Difference]: Without dead ends: 1158 [2022-02-15 00:43:33,736 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 [2022-02-15 00:43:33,739 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 135 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:33,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:33,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-02-15 00:43:33,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 962. [2022-02-15 00:43:33,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.554858934169279) internal successors, (1488), 957 states have internal predecessors, (1488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:33,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1492 transitions. [2022-02-15 00:43:33,763 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1492 transitions. Word has length 211 [2022-02-15 00:43:33,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:33,763 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1492 transitions. [2022-02-15 00:43:33,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:33,763 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1492 transitions. [2022-02-15 00:43:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-15 00:43:33,765 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:33,765 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:33,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:43:33,765 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:33,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash -642847624, now seen corresponding path program 1 times [2022-02-15 00:43:33,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:33,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925919931] [2022-02-15 00:43:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:33,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:33,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925919931] [2022-02-15 00:43:33,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925919931] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:33,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:33,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:33,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351337368] [2022-02-15 00:43:33,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:33,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:33,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:33,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:33,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:33,883 INFO L87 Difference]: Start difference. First operand 962 states and 1492 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:35,900 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 [] [2022-02-15 00:43:36,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:36,331 INFO L93 Difference]: Finished difference Result 1158 states and 1739 transitions. [2022-02-15 00:43:36,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:36,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-15 00:43:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:36,334 INFO L225 Difference]: With dead ends: 1158 [2022-02-15 00:43:36,334 INFO L226 Difference]: Without dead ends: 1158 [2022-02-15 00:43:36,334 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 [2022-02-15 00:43:36,335 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 132 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:36,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:36,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-02-15 00:43:36,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 962. [2022-02-15 00:43:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5402298850574712) internal successors, (1474), 957 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:36,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1478 transitions. [2022-02-15 00:43:36,346 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1478 transitions. Word has length 213 [2022-02-15 00:43:36,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:36,346 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1478 transitions. [2022-02-15 00:43:36,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1478 transitions. [2022-02-15 00:43:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-15 00:43:36,348 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:36,348 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:36,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:43:36,348 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:36,349 INFO L85 PathProgramCache]: Analyzing trace with hash 554678676, now seen corresponding path program 1 times [2022-02-15 00:43:36,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:36,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263743802] [2022-02-15 00:43:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:36,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:36,479 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:36,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:36,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263743802] [2022-02-15 00:43:36,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263743802] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:36,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:36,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:36,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860557996] [2022-02-15 00:43:36,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:36,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:36,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:36,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:36,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:36,482 INFO L87 Difference]: Start difference. First operand 962 states and 1478 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:38,488 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 [] [2022-02-15 00:43:38,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:38,874 INFO L93 Difference]: Finished difference Result 1284 states and 1934 transitions. [2022-02-15 00:43:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:38,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-15 00:43:38,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:38,877 INFO L225 Difference]: With dead ends: 1284 [2022-02-15 00:43:38,877 INFO L226 Difference]: Without dead ends: 1284 [2022-02-15 00:43:38,877 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 [2022-02-15 00:43:38,878 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 118 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:38,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 357 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-02-15 00:43:38,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1019. [2022-02-15 00:43:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1014 states have (on average 1.5157790927021697) internal successors, (1537), 1014 states have internal predecessors, (1537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:38,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1541 transitions. [2022-02-15 00:43:38,890 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1541 transitions. Word has length 213 [2022-02-15 00:43:38,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:38,891 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1541 transitions. [2022-02-15 00:43:38,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1541 transitions. [2022-02-15 00:43:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-15 00:43:38,892 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:38,893 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:38,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:43:38,893 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:38,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:38,893 INFO L85 PathProgramCache]: Analyzing trace with hash -133422725, now seen corresponding path program 1 times [2022-02-15 00:43:38,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:38,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930180733] [2022-02-15 00:43:38,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:38,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:38,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:38,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:38,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930180733] [2022-02-15 00:43:38,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930180733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:38,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:38,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:38,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36372556] [2022-02-15 00:43:38,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:38,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:38,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:38,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:38,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:38,997 INFO L87 Difference]: Start difference. First operand 1019 states and 1541 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:41,004 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 [] [2022-02-15 00:43:41,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:41,400 INFO L93 Difference]: Finished difference Result 1185 states and 1746 transitions. [2022-02-15 00:43:41,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:41,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-02-15 00:43:41,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:41,403 INFO L225 Difference]: With dead ends: 1185 [2022-02-15 00:43:41,403 INFO L226 Difference]: Without dead ends: 1185 [2022-02-15 00:43:41,403 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 [2022-02-15 00:43:41,404 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 123 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:41,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 338 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:41,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-02-15 00:43:41,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1019. [2022-02-15 00:43:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1014 states have (on average 1.4990138067061145) internal successors, (1520), 1014 states have internal predecessors, (1520), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:41,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1524 transitions. [2022-02-15 00:43:41,414 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1524 transitions. Word has length 214 [2022-02-15 00:43:41,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:41,414 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1524 transitions. [2022-02-15 00:43:41,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1524 transitions. [2022-02-15 00:43:41,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-15 00:43:41,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:41,416 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:41,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:43:41,416 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:41,417 INFO L85 PathProgramCache]: Analyzing trace with hash -168214403, now seen corresponding path program 1 times [2022-02-15 00:43:41,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:41,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462579051] [2022-02-15 00:43:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:41,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:41,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:41,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462579051] [2022-02-15 00:43:41,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462579051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:41,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:41,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:41,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123309726] [2022-02-15 00:43:41,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:41,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:41,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:41,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:41,514 INFO L87 Difference]: Start difference. First operand 1019 states and 1524 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:43,520 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 [] [2022-02-15 00:43:43,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:43,914 INFO L93 Difference]: Finished difference Result 1254 states and 1863 transitions. [2022-02-15 00:43:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:43,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-02-15 00:43:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:43,917 INFO L225 Difference]: With dead ends: 1254 [2022-02-15 00:43:43,917 INFO L226 Difference]: Without dead ends: 1254 [2022-02-15 00:43:43,917 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 [2022-02-15 00:43:43,917 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 117 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:43,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 338 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:43,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-02-15 00:43:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1022. [2022-02-15 00:43:43,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1017 states have (on average 1.4857423795476892) internal successors, (1511), 1017 states have internal predecessors, (1511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:43,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1515 transitions. [2022-02-15 00:43:43,926 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1515 transitions. Word has length 214 [2022-02-15 00:43:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:43,926 INFO L470 AbstractCegarLoop]: Abstraction has 1022 states and 1515 transitions. [2022-02-15 00:43:43,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1515 transitions. [2022-02-15 00:43:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-02-15 00:43:43,928 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:43,928 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:43,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:43:43,928 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:43,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash -443142085, now seen corresponding path program 1 times [2022-02-15 00:43:43,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:43,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765589580] [2022-02-15 00:43:43,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:44,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:44,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765589580] [2022-02-15 00:43:44,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765589580] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:44,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:44,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:44,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313342784] [2022-02-15 00:43:44,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:44,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:44,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:44,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:44,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:44,058 INFO L87 Difference]: Start difference. First operand 1022 states and 1515 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:46,065 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 [] [2022-02-15 00:43:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:46,446 INFO L93 Difference]: Finished difference Result 1312 states and 1921 transitions. [2022-02-15 00:43:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:46,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-02-15 00:43:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:46,450 INFO L225 Difference]: With dead ends: 1312 [2022-02-15 00:43:46,450 INFO L226 Difference]: Without dead ends: 1312 [2022-02-15 00:43:46,450 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 [2022-02-15 00:43:46,450 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 116 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:46,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 342 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:46,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-02-15 00:43:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1083. [2022-02-15 00:43:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4610389610389611) internal successors, (1575), 1078 states have internal predecessors, (1575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:46,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1579 transitions. [2022-02-15 00:43:46,460 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1579 transitions. Word has length 215 [2022-02-15 00:43:46,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:46,460 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1579 transitions. [2022-02-15 00:43:46,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:46,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1579 transitions. [2022-02-15 00:43:46,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-02-15 00:43:46,462 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:46,462 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:46,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:43:46,462 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:46,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:46,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1150066281, now seen corresponding path program 1 times [2022-02-15 00:43:46,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:46,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946516807] [2022-02-15 00:43:46,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:46,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:46,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:46,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946516807] [2022-02-15 00:43:46,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946516807] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:46,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:46,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:46,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891128720] [2022-02-15 00:43:46,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:46,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:46,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:46,563 INFO L87 Difference]: Start difference. First operand 1083 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:48,571 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 [] [2022-02-15 00:43:49,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:49,021 INFO L93 Difference]: Finished difference Result 1147 states and 1659 transitions. [2022-02-15 00:43:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:49,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:43:49,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:49,023 INFO L225 Difference]: With dead ends: 1147 [2022-02-15 00:43:49,024 INFO L226 Difference]: Without dead ends: 1147 [2022-02-15 00:43:49,024 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 [2022-02-15 00:43:49,024 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 72 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:49,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 584 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 541 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:49,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-02-15 00:43:49,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1083. [2022-02-15 00:43:49,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4591836734693877) internal successors, (1573), 1078 states have internal predecessors, (1573), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:49,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1577 transitions. [2022-02-15 00:43:49,033 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1577 transitions. Word has length 218 [2022-02-15 00:43:49,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:49,034 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1577 transitions. [2022-02-15 00:43:49,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:49,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1577 transitions. [2022-02-15 00:43:49,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-02-15 00:43:49,036 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:49,036 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:49,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:43:49,036 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:49,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:49,036 INFO L85 PathProgramCache]: Analyzing trace with hash -546969239, now seen corresponding path program 1 times [2022-02-15 00:43:49,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:49,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960468256] [2022-02-15 00:43:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:49,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:49,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:49,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960468256] [2022-02-15 00:43:49,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960468256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:49,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:49,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:49,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581734231] [2022-02-15 00:43:49,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:49,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:49,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:49,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:49,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:49,135 INFO L87 Difference]: Start difference. First operand 1083 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:51,147 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 [] [2022-02-15 00:43:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:51,571 INFO L93 Difference]: Finished difference Result 1139 states and 1647 transitions. [2022-02-15 00:43:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:51,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-02-15 00:43:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:51,574 INFO L225 Difference]: With dead ends: 1139 [2022-02-15 00:43:51,574 INFO L226 Difference]: Without dead ends: 1139 [2022-02-15 00:43:51,574 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 [2022-02-15 00:43:51,574 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 66 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:51,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 576 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:51,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-02-15 00:43:51,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1083. [2022-02-15 00:43:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4573283858998145) internal successors, (1571), 1078 states have internal predecessors, (1571), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1575 transitions. [2022-02-15 00:43:51,583 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1575 transitions. Word has length 219 [2022-02-15 00:43:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:51,583 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1575 transitions. [2022-02-15 00:43:51,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1575 transitions. [2022-02-15 00:43:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-02-15 00:43:51,585 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:51,585 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:51,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:43:51,585 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:51,586 INFO L85 PathProgramCache]: Analyzing trace with hash -547343874, now seen corresponding path program 1 times [2022-02-15 00:43:51,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:51,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759129839] [2022-02-15 00:43:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:51,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:51,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:51,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:51,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759129839] [2022-02-15 00:43:51,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759129839] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:51,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:51,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:51,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832010263] [2022-02-15 00:43:51,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:51,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:51,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:51,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:51,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:51,693 INFO L87 Difference]: Start difference. First operand 1083 states and 1575 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) [2022-02-15 00:43:53,707 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 [] [2022-02-15 00:43:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:54,123 INFO L93 Difference]: Finished difference Result 1139 states and 1645 transitions. [2022-02-15 00:43:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:54,123 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 221 [2022-02-15 00:43:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:54,126 INFO L225 Difference]: With dead ends: 1139 [2022-02-15 00:43:54,126 INFO L226 Difference]: Without dead ends: 1139 [2022-02-15 00:43:54,126 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 [2022-02-15 00:43:54,126 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:54,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 574 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:54,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-02-15 00:43:54,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1083. [2022-02-15 00:43:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.455473098330241) internal successors, (1569), 1078 states have internal predecessors, (1569), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1573 transitions. [2022-02-15 00:43:54,135 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1573 transitions. Word has length 221 [2022-02-15 00:43:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:54,135 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1573 transitions. [2022-02-15 00:43:54,135 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) [2022-02-15 00:43:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1573 transitions. [2022-02-15 00:43:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-02-15 00:43:54,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:54,137 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:54,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:43:54,138 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:54,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:54,138 INFO L85 PathProgramCache]: Analyzing trace with hash 29557597, now seen corresponding path program 1 times [2022-02-15 00:43:54,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:54,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100065398] [2022-02-15 00:43:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:54,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:54,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:54,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100065398] [2022-02-15 00:43:54,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100065398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:54,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:54,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:54,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791212082] [2022-02-15 00:43:54,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:54,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:54,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:54,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:54,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:54,263 INFO L87 Difference]: Start difference. First operand 1083 states and 1573 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) [2022-02-15 00:43:56,270 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 [] [2022-02-15 00:43:56,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:56,640 INFO L93 Difference]: Finished difference Result 1249 states and 1784 transitions. [2022-02-15 00:43:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:56,640 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 222 [2022-02-15 00:43:56,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:56,643 INFO L225 Difference]: With dead ends: 1249 [2022-02-15 00:43:56,643 INFO L226 Difference]: Without dead ends: 1249 [2022-02-15 00:43:56,643 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 [2022-02-15 00:43:56,644 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 108 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:56,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-15 00:43:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-02-15 00:43:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4452690166975881) internal successors, (1558), 1078 states have internal predecessors, (1558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:56,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1562 transitions. [2022-02-15 00:43:56,652 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1562 transitions. Word has length 222 [2022-02-15 00:43:56,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:56,653 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1562 transitions. [2022-02-15 00:43:56,653 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) [2022-02-15 00:43:56,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1562 transitions. [2022-02-15 00:43:56,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-15 00:43:56,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:56,655 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:56,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:43:56,655 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:56,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1817226739, now seen corresponding path program 1 times [2022-02-15 00:43:56,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:56,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321891291] [2022-02-15 00:43:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:56,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:56,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:56,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321891291] [2022-02-15 00:43:56,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321891291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:56,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:56,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:56,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044745839] [2022-02-15 00:43:56,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:56,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:56,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:56,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:56,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:56,759 INFO L87 Difference]: Start difference. First operand 1083 states and 1562 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) [2022-02-15 00:43:58,775 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 [] [2022-02-15 00:43:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:59,176 INFO L93 Difference]: Finished difference Result 1123 states and 1606 transitions. [2022-02-15 00:43:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:59,177 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 223 [2022-02-15 00:43:59,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:59,179 INFO L225 Difference]: With dead ends: 1123 [2022-02-15 00:43:59,179 INFO L226 Difference]: Without dead ends: 1123 [2022-02-15 00:43:59,179 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 [2022-02-15 00:43:59,180 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 49 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:59,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 562 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:59,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-02-15 00:43:59,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1083. [2022-02-15 00:43:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.443413729128015) internal successors, (1556), 1078 states have internal predecessors, (1556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:59,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1560 transitions. [2022-02-15 00:43:59,189 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1560 transitions. Word has length 223 [2022-02-15 00:43:59,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:59,189 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1560 transitions. [2022-02-15 00:43:59,189 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) [2022-02-15 00:43:59,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1560 transitions. [2022-02-15 00:43:59,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-15 00:43:59,190 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:59,190 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:59,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:43:59,191 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:59,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 938283475, now seen corresponding path program 1 times [2022-02-15 00:43:59,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:59,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352092637] [2022-02-15 00:43:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:59,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:43:59,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:59,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352092637] [2022-02-15 00:43:59,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352092637] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:59,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:59,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:59,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407038376] [2022-02-15 00:43:59,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:59,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:59,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:59,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:59,305 INFO L87 Difference]: Start difference. First operand 1083 states and 1560 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:01,319 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 [] [2022-02-15 00:44:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:01,671 INFO L93 Difference]: Finished difference Result 1123 states and 1604 transitions. [2022-02-15 00:44:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:01,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-02-15 00:44:01,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:01,690 INFO L225 Difference]: With dead ends: 1123 [2022-02-15 00:44:01,691 INFO L226 Difference]: Without dead ends: 1123 [2022-02-15 00:44:01,691 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 [2022-02-15 00:44:01,691 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 52 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:01,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 560 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:01,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-02-15 00:44:01,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1083. [2022-02-15 00:44:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4415584415584415) internal successors, (1554), 1078 states have internal predecessors, (1554), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:01,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1558 transitions. [2022-02-15 00:44:01,700 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1558 transitions. Word has length 224 [2022-02-15 00:44:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:01,700 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1558 transitions. [2022-02-15 00:44:01,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:01,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1558 transitions. [2022-02-15 00:44:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-15 00:44:01,715 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:01,719 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:01,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:44:01,719 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:01,720 INFO L85 PathProgramCache]: Analyzing trace with hash -249721456, now seen corresponding path program 1 times [2022-02-15 00:44:01,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:01,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174797227] [2022-02-15 00:44:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:01,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:01,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:01,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:01,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174797227] [2022-02-15 00:44:01,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174797227] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:01,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:01,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:01,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803533297] [2022-02-15 00:44:01,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:01,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:01,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:01,874 INFO L87 Difference]: Start difference. First operand 1083 states and 1558 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:03,881 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 [] [2022-02-15 00:44:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:04,242 INFO L93 Difference]: Finished difference Result 1119 states and 1598 transitions. [2022-02-15 00:44:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:04,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-02-15 00:44:04,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:04,245 INFO L225 Difference]: With dead ends: 1119 [2022-02-15 00:44:04,245 INFO L226 Difference]: Without dead ends: 1119 [2022-02-15 00:44:04,245 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 [2022-02-15 00:44:04,245 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 45 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:04,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 556 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:04,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2022-02-15 00:44:04,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1083. [2022-02-15 00:44:04,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4397031539888683) internal successors, (1552), 1078 states have internal predecessors, (1552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1556 transitions. [2022-02-15 00:44:04,255 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1556 transitions. Word has length 224 [2022-02-15 00:44:04,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:04,256 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1556 transitions. [2022-02-15 00:44:04,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:04,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1556 transitions. [2022-02-15 00:44:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-02-15 00:44:04,257 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:04,257 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:04,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:44:04,258 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:04,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:04,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1302900628, now seen corresponding path program 1 times [2022-02-15 00:44:04,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:04,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173391900] [2022-02-15 00:44:04,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:04,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:04,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:04,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:04,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173391900] [2022-02-15 00:44:04,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173391900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:04,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:04,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:04,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801998506] [2022-02-15 00:44:04,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:04,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:04,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:04,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:04,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:04,378 INFO L87 Difference]: Start difference. First operand 1083 states and 1556 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 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) [2022-02-15 00:44:06,385 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 [] [2022-02-15 00:44:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:06,784 INFO L93 Difference]: Finished difference Result 1249 states and 1767 transitions. [2022-02-15 00:44:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:06,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 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 225 [2022-02-15 00:44:06,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:06,786 INFO L225 Difference]: With dead ends: 1249 [2022-02-15 00:44:06,786 INFO L226 Difference]: Without dead ends: 1249 [2022-02-15 00:44:06,786 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 [2022-02-15 00:44:06,786 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 109 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:06,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:06,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-15 00:44:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-02-15 00:44:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4294990723562153) internal successors, (1541), 1078 states have internal predecessors, (1541), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:06,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1545 transitions. [2022-02-15 00:44:06,797 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1545 transitions. Word has length 225 [2022-02-15 00:44:06,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:06,798 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1545 transitions. [2022-02-15 00:44:06,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 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) [2022-02-15 00:44:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1545 transitions. [2022-02-15 00:44:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-15 00:44:06,799 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:06,799 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:06,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:44:06,800 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:06,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:06,800 INFO L85 PathProgramCache]: Analyzing trace with hash 519324707, now seen corresponding path program 1 times [2022-02-15 00:44:06,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:06,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862603987] [2022-02-15 00:44:06,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:06,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:06,906 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:06,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:06,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862603987] [2022-02-15 00:44:06,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862603987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:06,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:06,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:06,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765086233] [2022-02-15 00:44:06,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:06,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:06,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:06,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:06,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:06,910 INFO L87 Difference]: Start difference. First operand 1083 states and 1545 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) [2022-02-15 00:44:08,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:10,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:12,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:14,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:14,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:14,830 INFO L93 Difference]: Finished difference Result 1115 states and 1579 transitions. [2022-02-15 00:44:14,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:14,830 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 227 [2022-02-15 00:44:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:14,832 INFO L225 Difference]: With dead ends: 1115 [2022-02-15 00:44:14,832 INFO L226 Difference]: Without dead ends: 1115 [2022-02-15 00:44:14,832 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 [2022-02-15 00:44:14,832 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 40 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:14,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 552 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-15 00:44:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2022-02-15 00:44:14,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1083. [2022-02-15 00:44:14,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.427643784786642) internal successors, (1539), 1078 states have internal predecessors, (1539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1543 transitions. [2022-02-15 00:44:14,863 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1543 transitions. Word has length 227 [2022-02-15 00:44:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:14,863 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1543 transitions. [2022-02-15 00:44:14,863 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) [2022-02-15 00:44:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1543 transitions. [2022-02-15 00:44:14,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-15 00:44:14,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:14,864 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:14,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:44:14,865 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:14,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:14,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2136203219, now seen corresponding path program 1 times [2022-02-15 00:44:14,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:14,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905627929] [2022-02-15 00:44:14,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:14,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:14,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:14,971 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:14,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:14,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905627929] [2022-02-15 00:44:14,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905627929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:14,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:14,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:14,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236639573] [2022-02-15 00:44:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:14,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:14,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:14,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:14,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:14,972 INFO L87 Difference]: Start difference. First operand 1083 states and 1543 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) [2022-02-15 00:44:16,979 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 [] [2022-02-15 00:44:17,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:17,348 INFO L93 Difference]: Finished difference Result 1249 states and 1757 transitions. [2022-02-15 00:44:17,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:17,348 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 228 [2022-02-15 00:44:17,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:17,350 INFO L225 Difference]: With dead ends: 1249 [2022-02-15 00:44:17,350 INFO L226 Difference]: Without dead ends: 1249 [2022-02-15 00:44:17,350 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 [2022-02-15 00:44:17,351 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 101 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:17,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-15 00:44:17,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-02-15 00:44:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4202226345083488) internal successors, (1531), 1078 states have internal predecessors, (1531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1535 transitions. [2022-02-15 00:44:17,383 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1535 transitions. Word has length 228 [2022-02-15 00:44:17,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:17,383 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1535 transitions. [2022-02-15 00:44:17,383 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) [2022-02-15 00:44:17,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1535 transitions. [2022-02-15 00:44:17,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-15 00:44:17,385 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:17,385 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-02-15 00:44:17,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:44:17,385 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:17,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:17,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2097942340, now seen corresponding path program 1 times [2022-02-15 00:44:17,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:17,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196186117] [2022-02-15 00:44:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:17,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:17,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:17,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196186117] [2022-02-15 00:44:17,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196186117] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:17,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:17,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:17,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53594045] [2022-02-15 00:44:17,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:17,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:17,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:17,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:17,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:17,521 INFO L87 Difference]: Start difference. First operand 1083 states and 1535 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) [2022-02-15 00:44:18,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:20,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:22,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:24,965 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 [] [2022-02-15 00:44:25,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:25,368 INFO L93 Difference]: Finished difference Result 1375 states and 1938 transitions. [2022-02-15 00:44:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:25,368 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 228 [2022-02-15 00:44:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:25,370 INFO L225 Difference]: With dead ends: 1375 [2022-02-15 00:44:25,370 INFO L226 Difference]: Without dead ends: 1375 [2022-02-15 00:44:25,370 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 [2022-02-15 00:44:25,371 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 99 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:25,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 340 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-15 00:44:25,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2022-02-15 00:44:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1188. [2022-02-15 00:44:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1183 states have (on average 1.4142011834319526) internal successors, (1673), 1183 states have internal predecessors, (1673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1677 transitions. [2022-02-15 00:44:25,379 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1677 transitions. Word has length 228 [2022-02-15 00:44:25,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:25,380 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 1677 transitions. [2022-02-15 00:44:25,380 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) [2022-02-15 00:44:25,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1677 transitions. [2022-02-15 00:44:25,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-02-15 00:44:25,381 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:25,381 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:44:25,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:44:25,382 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1089527269, now seen corresponding path program 1 times [2022-02-15 00:44:25,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:25,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35956039] [2022-02-15 00:44:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:25,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:25,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:25,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35956039] [2022-02-15 00:44:25,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35956039] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:25,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:25,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:25,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518667676] [2022-02-15 00:44:25,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:25,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:25,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:25,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:25,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:25,507 INFO L87 Difference]: Start difference. First operand 1188 states and 1677 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) [2022-02-15 00:44:27,517 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 [] [2022-02-15 00:44:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:27,880 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2022-02-15 00:44:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:27,880 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 229 [2022-02-15 00:44:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:27,882 INFO L225 Difference]: With dead ends: 1208 [2022-02-15 00:44:27,882 INFO L226 Difference]: Without dead ends: 1208 [2022-02-15 00:44:27,882 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 [2022-02-15 00:44:27,882 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:27,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 538 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-02-15 00:44:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1188. [2022-02-15 00:44:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1183 states have (on average 1.4125105663567201) internal successors, (1671), 1183 states have internal predecessors, (1671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1675 transitions. [2022-02-15 00:44:27,892 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1675 transitions. Word has length 229 [2022-02-15 00:44:27,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:27,892 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 1675 transitions. [2022-02-15 00:44:27,892 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) [2022-02-15 00:44:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1675 transitions. [2022-02-15 00:44:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-15 00:44:27,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:27,894 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:44:27,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 00:44:27,894 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:27,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:27,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1676322048, now seen corresponding path program 1 times [2022-02-15 00:44:27,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:27,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586479975] [2022-02-15 00:44:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:27,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:28,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:28,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:28,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586479975] [2022-02-15 00:44:28,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586479975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:28,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:28,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:28,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457544367] [2022-02-15 00:44:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:28,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:28,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:28,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:28,006 INFO L87 Difference]: Start difference. First operand 1188 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:30,014 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 [] [2022-02-15 00:44:30,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:30,422 INFO L93 Difference]: Finished difference Result 1480 states and 2075 transitions. [2022-02-15 00:44:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:30,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-02-15 00:44:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:30,424 INFO L225 Difference]: With dead ends: 1480 [2022-02-15 00:44:30,424 INFO L226 Difference]: Without dead ends: 1480 [2022-02-15 00:44:30,425 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 [2022-02-15 00:44:30,425 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 97 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:30,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 340 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-02-15 00:44:30,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1299. [2022-02-15 00:44:30,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.4080370942812983) internal successors, (1822), 1294 states have internal predecessors, (1822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1826 transitions. [2022-02-15 00:44:30,435 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1826 transitions. Word has length 230 [2022-02-15 00:44:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:30,435 INFO L470 AbstractCegarLoop]: Abstraction has 1299 states and 1826 transitions. [2022-02-15 00:44:30,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:30,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1826 transitions. [2022-02-15 00:44:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-15 00:44:30,437 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:30,437 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:30,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 00:44:30,437 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:30,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash -8501446, now seen corresponding path program 1 times [2022-02-15 00:44:30,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:30,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226910003] [2022-02-15 00:44:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:30,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:30,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:30,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226910003] [2022-02-15 00:44:30,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226910003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:30,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:30,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:30,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983785450] [2022-02-15 00:44:30,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:30,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:30,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:30,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:30,540 INFO L87 Difference]: Start difference. First operand 1299 states and 1826 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:32,547 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 [] [2022-02-15 00:44:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:32,930 INFO L93 Difference]: Finished difference Result 1465 states and 2040 transitions. [2022-02-15 00:44:32,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:32,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-02-15 00:44:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:32,933 INFO L225 Difference]: With dead ends: 1465 [2022-02-15 00:44:32,933 INFO L226 Difference]: Without dead ends: 1465 [2022-02-15 00:44:32,933 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 [2022-02-15 00:44:32,933 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 96 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:32,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-02-15 00:44:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1299. [2022-02-15 00:44:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.401854714064915) internal successors, (1814), 1294 states have internal predecessors, (1814), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1818 transitions. [2022-02-15 00:44:32,950 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1818 transitions. Word has length 231 [2022-02-15 00:44:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:32,971 INFO L470 AbstractCegarLoop]: Abstraction has 1299 states and 1818 transitions. [2022-02-15 00:44:32,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1818 transitions. [2022-02-15 00:44:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-02-15 00:44:32,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:32,973 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:44:32,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 00:44:32,974 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1801789431, now seen corresponding path program 1 times [2022-02-15 00:44:32,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:32,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687693375] [2022-02-15 00:44:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:33,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:33,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687693375] [2022-02-15 00:44:33,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687693375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:33,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:33,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:33,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268311631] [2022-02-15 00:44:33,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:33,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:33,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:33,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:33,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:33,099 INFO L87 Difference]: Start difference. First operand 1299 states and 1818 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:35,111 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 [] [2022-02-15 00:44:35,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:35,465 INFO L93 Difference]: Finished difference Result 1690 states and 2353 transitions. [2022-02-15 00:44:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:35,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-02-15 00:44:35,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:35,467 INFO L225 Difference]: With dead ends: 1690 [2022-02-15 00:44:35,467 INFO L226 Difference]: Without dead ends: 1690 [2022-02-15 00:44:35,467 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 [2022-02-15 00:44:35,468 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 94 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:35,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 342 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-02-15 00:44:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1515. [2022-02-15 00:44:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 1.3986754966887418) internal successors, (2112), 1510 states have internal predecessors, (2112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2116 transitions. [2022-02-15 00:44:35,501 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2116 transitions. Word has length 234 [2022-02-15 00:44:35,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:35,501 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 2116 transitions. [2022-02-15 00:44:35,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2116 transitions. [2022-02-15 00:44:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-02-15 00:44:35,503 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:35,515 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:35,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 00:44:35,515 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:35,516 INFO L85 PathProgramCache]: Analyzing trace with hash -658958062, now seen corresponding path program 1 times [2022-02-15 00:44:35,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:35,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376969042] [2022-02-15 00:44:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:35,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:35,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:44:35,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:35,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376969042] [2022-02-15 00:44:35,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376969042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:35,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:35,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:35,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465461602] [2022-02-15 00:44:35,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:35,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:35,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:35,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:35,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:35,656 INFO L87 Difference]: Start difference. First operand 1515 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:37,662 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 [] [2022-02-15 00:44:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:38,056 INFO L93 Difference]: Finished difference Result 1681 states and 2330 transitions. [2022-02-15 00:44:38,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:38,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-02-15 00:44:38,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:38,059 INFO L225 Difference]: With dead ends: 1681 [2022-02-15 00:44:38,059 INFO L226 Difference]: Without dead ends: 1681 [2022-02-15 00:44:38,060 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 [2022-02-15 00:44:38,060 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 93 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:38,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 350 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:38,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2022-02-15 00:44:38,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1515. [2022-02-15 00:44:38,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 1.3933774834437087) internal successors, (2104), 1510 states have internal predecessors, (2104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2108 transitions. [2022-02-15 00:44:38,070 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2108 transitions. Word has length 235 [2022-02-15 00:44:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:38,070 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 2108 transitions. [2022-02-15 00:44:38,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2108 transitions. [2022-02-15 00:44:38,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-15 00:44:38,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:38,073 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:44:38,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 00:44:38,073 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:38,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1135293253, now seen corresponding path program 1 times [2022-02-15 00:44:38,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:38,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805396177] [2022-02-15 00:44:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-15 00:44:38,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:38,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805396177] [2022-02-15 00:44:38,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805396177] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:38,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:38,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:44:38,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298006106] [2022-02-15 00:44:38,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:38,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:44:38,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:38,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:44:38,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:38,369 INFO L87 Difference]: Start difference. First operand 1515 states and 2108 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 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) [2022-02-15 00:44:40,377 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 [] [2022-02-15 00:44:41,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:41,055 INFO L93 Difference]: Finished difference Result 1983 states and 2735 transitions. [2022-02-15 00:44:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:44:41,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 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 239 [2022-02-15 00:44:41,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:41,058 INFO L225 Difference]: With dead ends: 1983 [2022-02-15 00:44:41,058 INFO L226 Difference]: Without dead ends: 1983 [2022-02-15 00:44:41,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-15 00:44:41,059 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 303 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:41,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 762 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 765 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 00:44:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-02-15 00:44:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1581. [2022-02-15 00:44:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1576 states have (on average 1.3826142131979695) internal successors, (2179), 1576 states have internal predecessors, (2179), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2183 transitions. [2022-02-15 00:44:41,072 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2183 transitions. Word has length 239 [2022-02-15 00:44:41,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:41,073 INFO L470 AbstractCegarLoop]: Abstraction has 1581 states and 2183 transitions. [2022-02-15 00:44:41,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 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) [2022-02-15 00:44:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2183 transitions. [2022-02-15 00:44:41,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-15 00:44:41,074 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:41,075 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:44:41,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 00:44:41,075 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:41,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:41,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2083120634, now seen corresponding path program 1 times [2022-02-15 00:44:41,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:41,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452381849] [2022-02-15 00:44:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:41,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 320 proven. 54 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-15 00:44:41,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:41,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452381849] [2022-02-15 00:44:41,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452381849] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:44:41,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336441682] [2022-02-15 00:44:41,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:41,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:44:41,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:44:41,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:44:41,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:44:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:42,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-15 00:44:42,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:44:42,366 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:44:42,367 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:44:42,455 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-15 00:44:42,455 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:44:42,549 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:44:42,570 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-15 00:44:42,573 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-15 00:44:42,599 INFO L353 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-15 00:44:42,599 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-02-15 00:44:42,628 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-15 00:44:42,628 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:44:42,753 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:44:42,753 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:44:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 301 proven. 54 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-15 00:44:42,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:44:43,143 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 52 [2022-02-15 00:44:43,156 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-02-15 00:44:44,704 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 185 [2022-02-15 00:44:44,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 39 [2022-02-15 00:44:44,802 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-15 00:44:44,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336441682] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:44:44,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:44:44,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 10] total 20 [2022-02-15 00:44:44,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171802305] [2022-02-15 00:44:44,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:44,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:44:44,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:44,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:44:44,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-02-15 00:44:44,803 INFO L87 Difference]: Start difference. First operand 1581 states and 2183 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:46,810 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 [] [2022-02-15 00:44:48,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:50,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:53,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:53,161 INFO L93 Difference]: Finished difference Result 2376 states and 3262 transitions. [2022-02-15 00:44:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 00:44:53,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-02-15 00:44:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:53,164 INFO L225 Difference]: With dead ends: 2376 [2022-02-15 00:44:53,165 INFO L226 Difference]: Without dead ends: 2376 [2022-02-15 00:44:53,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-02-15 00:44:53,165 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 221 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 192 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:53,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 996 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 625 Invalid, 3 Unknown, 192 Unchecked, 6.6s Time] [2022-02-15 00:44:53,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-02-15 00:44:53,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 2153. [2022-02-15 00:44:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2148 states have (on average 1.3803538175046555) internal successors, (2965), 2148 states have internal predecessors, (2965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:53,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2969 transitions. [2022-02-15 00:44:53,179 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2969 transitions. Word has length 239 [2022-02-15 00:44:53,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:53,179 INFO L470 AbstractCegarLoop]: Abstraction has 2153 states and 2969 transitions. [2022-02-15 00:44:53,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:53,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2969 transitions. [2022-02-15 00:44:53,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-15 00:44:53,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:53,182 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:53,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-15 00:44:53,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-02-15 00:44:53,395 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:53,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:53,396 INFO L85 PathProgramCache]: Analyzing trace with hash -875202459, now seen corresponding path program 1 times [2022-02-15 00:44:53,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:53,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226234800] [2022-02-15 00:44:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:53,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:53,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:53,535 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 262 proven. 36 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-15 00:44:53,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:53,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226234800] [2022-02-15 00:44:53,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226234800] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:44:53,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222851073] [2022-02-15 00:44:53,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:53,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:44:53,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:44:53,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:44:53,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:44:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:54,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-15 00:44:54,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:44:54,458 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:44:54,458 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:44:54,503 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:44:54,503 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:44:54,574 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-15 00:44:54,668 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:44:54,688 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:44:54,688 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:44:54,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:44:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 257 proven. 100 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-02-15 00:44:54,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:44:55,102 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-02-15 00:44:55,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222851073] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:44:55,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:44:55,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-15 00:44:55,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763117239] [2022-02-15 00:44:55,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:55,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:44:55,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:55,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:44:55,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:44:55,103 INFO L87 Difference]: Start difference. First operand 2153 states and 2969 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:57,109 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 [] [2022-02-15 00:44:57,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:57,343 INFO L93 Difference]: Finished difference Result 2392 states and 3291 transitions. [2022-02-15 00:44:57,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:44:57,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-02-15 00:44:57,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:57,365 INFO L225 Difference]: With dead ends: 2392 [2022-02-15 00:44:57,365 INFO L226 Difference]: Without dead ends: 2392 [2022-02-15 00:44:57,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:44:57,367 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:57,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 515 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:44:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2022-02-15 00:44:57,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2153. [2022-02-15 00:44:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2148 states have (on average 1.378026070763501) internal successors, (2960), 2148 states have internal predecessors, (2960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2964 transitions. [2022-02-15 00:44:57,385 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2964 transitions. Word has length 239 [2022-02-15 00:44:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:57,386 INFO L470 AbstractCegarLoop]: Abstraction has 2153 states and 2964 transitions. [2022-02-15 00:44:57,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2964 transitions. [2022-02-15 00:44:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-15 00:44:57,390 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:57,390 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:57,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-15 00:44:57,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2022-02-15 00:44:57,612 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:57,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1893567372, now seen corresponding path program 1 times [2022-02-15 00:44:57,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:57,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201449756] [2022-02-15 00:44:57,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:57,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-15 00:44:57,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:57,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201449756] [2022-02-15 00:44:57,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201449756] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:57,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:57,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:44:57,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759321836] [2022-02-15 00:44:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:57,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:44:57,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:57,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:44:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:57,811 INFO L87 Difference]: Start difference. First operand 2153 states and 2964 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 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) [2022-02-15 00:44:59,827 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 [] [2022-02-15 00:45:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:00,443 INFO L93 Difference]: Finished difference Result 2580 states and 3531 transitions. [2022-02-15 00:45:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:45:00,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 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 240 [2022-02-15 00:45:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:00,446 INFO L225 Difference]: With dead ends: 2580 [2022-02-15 00:45:00,446 INFO L226 Difference]: Without dead ends: 2580 [2022-02-15 00:45:00,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-15 00:45:00,447 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 277 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:00,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 750 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:45:00,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-02-15 00:45:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2156. [2022-02-15 00:45:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2151 states have (on average 1.3737796373779638) internal successors, (2955), 2151 states have internal predecessors, (2955), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2959 transitions. [2022-02-15 00:45:00,462 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2959 transitions. Word has length 240 [2022-02-15 00:45:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:00,463 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 2959 transitions. [2022-02-15 00:45:00,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 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) [2022-02-15 00:45:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2959 transitions. [2022-02-15 00:45:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-15 00:45:00,465 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:00,465 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:45:00,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 00:45:00,466 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:00,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:00,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1148700173, now seen corresponding path program 1 times [2022-02-15 00:45:00,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:00,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357257255] [2022-02-15 00:45:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:00,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-02-15 00:45:00,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:00,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357257255] [2022-02-15 00:45:00,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357257255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:00,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:00,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:00,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697689391] [2022-02-15 00:45:00,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:00,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:00,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:00,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:00,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:00,663 INFO L87 Difference]: Start difference. First operand 2156 states and 2959 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) [2022-02-15 00:45:02,672 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 [] [2022-02-15 00:45:03,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:03,002 INFO L93 Difference]: Finished difference Result 2288 states and 3129 transitions. [2022-02-15 00:45:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:03,003 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 240 [2022-02-15 00:45:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:03,006 INFO L225 Difference]: With dead ends: 2288 [2022-02-15 00:45:03,006 INFO L226 Difference]: Without dead ends: 2288 [2022-02-15 00:45:03,006 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 [2022-02-15 00:45:03,006 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 22 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:03,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:45:03,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-02-15 00:45:03,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2252. [2022-02-15 00:45:03,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2247 states have (on average 1.3702714730752115) internal successors, (3079), 2247 states have internal predecessors, (3079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:03,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3083 transitions. [2022-02-15 00:45:03,021 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3083 transitions. Word has length 240 [2022-02-15 00:45:03,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:03,021 INFO L470 AbstractCegarLoop]: Abstraction has 2252 states and 3083 transitions. [2022-02-15 00:45:03,021 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) [2022-02-15 00:45:03,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3083 transitions. [2022-02-15 00:45:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-15 00:45:03,024 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:03,024 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:03,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 00:45:03,024 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash 906984683, now seen corresponding path program 1 times [2022-02-15 00:45:03,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:03,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525052305] [2022-02-15 00:45:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:03,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 323 proven. 55 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-15 00:45:03,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:03,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525052305] [2022-02-15 00:45:03,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525052305] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:45:03,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755642395] [2022-02-15 00:45:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:03,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:45:03,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:45:03,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:45:03,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 00:45:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:04,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-15 00:45:04,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:45:04,223 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:45:04,224 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:45:04,339 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-15 00:45:04,340 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:45:04,446 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:45:04,471 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-15 00:45:04,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-15 00:45:04,505 INFO L353 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-15 00:45:04,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-02-15 00:45:04,542 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-15 00:45:04,542 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:45:04,655 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:45:04,655 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:45:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 305 proven. 54 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-15 00:45:04,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:45:04,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 52 [2022-02-15 00:45:04,956 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-02-15 00:45:07,005 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 185 [2022-02-15 00:45:07,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 39 [2022-02-15 00:45:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-15 00:45:07,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755642395] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:45:07,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:45:07,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 10] total 20 [2022-02-15 00:45:07,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439478374] [2022-02-15 00:45:07,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:07,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:45:07,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:45:07,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-02-15 00:45:07,105 INFO L87 Difference]: Start difference. First operand 2252 states and 3083 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:09,113 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 [] [2022-02-15 00:45:11,139 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 [] [2022-02-15 00:45:13,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:13,226 INFO L93 Difference]: Finished difference Result 3712 states and 5060 transitions. [2022-02-15 00:45:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 00:45:13,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-02-15 00:45:13,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:13,231 INFO L225 Difference]: With dead ends: 3712 [2022-02-15 00:45:13,231 INFO L226 Difference]: Without dead ends: 3712 [2022-02-15 00:45:13,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 475 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-15 00:45:13,232 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 320 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 84 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:13,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 813 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 493 Invalid, 2 Unknown, 182 Unchecked, 4.5s Time] [2022-02-15 00:45:13,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2022-02-15 00:45:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 2252. [2022-02-15 00:45:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2247 states have (on average 1.3702714730752115) internal successors, (3079), 2247 states have internal predecessors, (3079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3083 transitions. [2022-02-15 00:45:13,253 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3083 transitions. Word has length 240 [2022-02-15 00:45:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:13,253 INFO L470 AbstractCegarLoop]: Abstraction has 2252 states and 3083 transitions. [2022-02-15 00:45:13,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3083 transitions. [2022-02-15 00:45:13,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-02-15 00:45:13,256 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:13,256 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:45:13,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-15 00:45:13,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:45:13,480 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:13,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:13,481 INFO L85 PathProgramCache]: Analyzing trace with hash 609844275, now seen corresponding path program 1 times [2022-02-15 00:45:13,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:13,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955503278] [2022-02-15 00:45:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:13,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:13,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-02-15 00:45:13,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:13,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955503278] [2022-02-15 00:45:13,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955503278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:13,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:13,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:13,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327726267] [2022-02-15 00:45:13,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:13,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:13,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:13,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:13,630 INFO L87 Difference]: Start difference. First operand 2252 states and 3083 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 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) [2022-02-15 00:45:15,637 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 [] [2022-02-15 00:45:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:16,008 INFO L93 Difference]: Finished difference Result 2425 states and 3313 transitions. [2022-02-15 00:45:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:16,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 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 262 [2022-02-15 00:45:16,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:16,011 INFO L225 Difference]: With dead ends: 2425 [2022-02-15 00:45:16,011 INFO L226 Difference]: Without dead ends: 2425 [2022-02-15 00:45:16,011 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 [2022-02-15 00:45:16,011 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 25 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:16,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 551 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:45:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-02-15 00:45:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2382. [2022-02-15 00:45:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2377 states have (on average 1.3689524610854018) internal successors, (3254), 2377 states have internal predecessors, (3254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3258 transitions. [2022-02-15 00:45:16,030 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3258 transitions. Word has length 262 [2022-02-15 00:45:16,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:16,030 INFO L470 AbstractCegarLoop]: Abstraction has 2382 states and 3258 transitions. [2022-02-15 00:45:16,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 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) [2022-02-15 00:45:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3258 transitions. [2022-02-15 00:45:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:45:16,033 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:16,033 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:16,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 00:45:16,033 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:16,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:16,034 INFO L85 PathProgramCache]: Analyzing trace with hash 259054701, now seen corresponding path program 1 times [2022-02-15 00:45:16,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:16,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035518447] [2022-02-15 00:45:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:16,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-02-15 00:45:16,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:16,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035518447] [2022-02-15 00:45:16,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035518447] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:16,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:16,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:45:16,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694728880] [2022-02-15 00:45:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:16,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:45:16,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:45:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:45:16,369 INFO L87 Difference]: Start difference. First operand 2382 states and 3258 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-02-15 00:45:18,383 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 [] [2022-02-15 00:45:18,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:18,780 INFO L93 Difference]: Finished difference Result 2390 states and 3268 transitions. [2022-02-15 00:45:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:45:18,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-02-15 00:45:18,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:18,782 INFO L225 Difference]: With dead ends: 2390 [2022-02-15 00:45:18,782 INFO L226 Difference]: Without dead ends: 2382 [2022-02-15 00:45:18,782 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 [2022-02-15 00:45:18,783 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:18,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:45:18,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2022-02-15 00:45:18,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2382. [2022-02-15 00:45:18,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2377 states have (on average 1.3685317627261253) internal successors, (3253), 2377 states have internal predecessors, (3253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:18,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3257 transitions. [2022-02-15 00:45:18,796 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3257 transitions. Word has length 268 [2022-02-15 00:45:18,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:18,796 INFO L470 AbstractCegarLoop]: Abstraction has 2382 states and 3257 transitions. [2022-02-15 00:45:18,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-02-15 00:45:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3257 transitions. [2022-02-15 00:45:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:45:18,799 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:18,799 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:18,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 00:45:18,799 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:18,800 INFO L85 PathProgramCache]: Analyzing trace with hash 743691532, now seen corresponding path program 1 times [2022-02-15 00:45:18,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:18,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186422142] [2022-02-15 00:45:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:18,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:20,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 302 proven. 225 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-15 00:45:20,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:20,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186422142] [2022-02-15 00:45:20,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186422142] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:45:20,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974173239] [2022-02-15 00:45:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:20,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:45:20,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:45:20,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:45:20,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 00:45:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:21,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 210 conjunts are in the unsatisfiable core [2022-02-15 00:45:21,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:49:09,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:09,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:09,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:09,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:09,136 INFO L190 IndexEqualityManager]: detected not equals via solver