/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.12.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:43:25,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:43:25,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:43:25,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:43:25,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:43:25,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:43:25,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:43:25,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:43:25,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:43:25,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:43:25,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:43:25,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:43:25,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:43:25,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:43:25,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:43:25,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:43:25,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:43:25,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:43:25,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:43:25,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:43:25,860 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:43:25,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:43:25,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:43:25,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:43:25,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:43:25,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:43:25,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:43:25,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:43:25,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:43:25,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:43:25,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:43:25,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:43:25,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:43:25,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:43:25,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:43:25,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:43:25,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:43:25,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:43:25,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:43:25,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:43:25,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:43:25,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:43:25,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:43:25,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:43:25,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:43:25,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:43:25,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:43:25,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:43:25,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:43:25,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:43:25,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:43:25,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:43:25,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:43:25,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:43:25,890 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:43:25,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:43:26,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:43:26,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:43:26,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:43:26,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:43:26,070 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:43:26,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-03-20 07:43:26,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2f23b549/6043fa794c1b4764b853436a3b2cb4e8/FLAG261c249aa [2022-03-20 07:43:26,568 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:43:26,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-03-20 07:43:26,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2f23b549/6043fa794c1b4764b853436a3b2cb4e8/FLAG261c249aa [2022-03-20 07:43:26,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2f23b549/6043fa794c1b4764b853436a3b2cb4e8 [2022-03-20 07:43:26,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:43:26,895 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:43:26,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:43:26,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:43:26,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:43:26,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:43:26" (1/1) ... [2022-03-20 07:43:26,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ccf0c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:26, skipping insertion in model container [2022-03-20 07:43:26,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:43:26" (1/1) ... [2022-03-20 07:43:26,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:43:26,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:43:27,235 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.12.i.cil-2.c[75436,75449] [2022-03-20 07:43:27,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:43:27,250 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:43:27,320 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.12.i.cil-2.c[75436,75449] [2022-03-20 07:43:27,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:43:27,332 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:43:27,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27 WrapperNode [2022-03-20 07:43:27,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:43:27,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:43:27,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:43:27,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:43:27,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:43:27,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:43:27,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:43:27,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:43:27,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (1/1) ... [2022-03-20 07:43:27,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:43:27,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:43:27,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 07:43:27,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 07:43:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:43:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:43:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:43:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:43:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:43:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:43:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:43:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:43:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:43:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:43:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:43:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:43:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:43:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:43:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:43:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:43:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:43:27,660 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:43:27,662 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:43:28,358 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:43:28,707 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:43:28,707 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:43:28,717 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:43:28,727 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:43:28,727 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:43:28,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:43:28 BoogieIcfgContainer [2022-03-20 07:43:28,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:43:28,730 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:43:28,730 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:43:28,731 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:43:28,733 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:43:28" (1/1) ... [2022-03-20 07:43:28,735 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:43:28,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:43:28 BasicIcfg [2022-03-20 07:43:28,783 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:43:28,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:43:28,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:43:28,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:43:28,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:43:26" (1/4) ... [2022-03-20 07:43:28,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a140ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:43:28, skipping insertion in model container [2022-03-20 07:43:28,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:27" (2/4) ... [2022-03-20 07:43:28,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a140ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:43:28, skipping insertion in model container [2022-03-20 07:43:28,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:43:28" (3/4) ... [2022-03-20 07:43:28,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a140ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:43:28, skipping insertion in model container [2022-03-20 07:43:28,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:43:28" (4/4) ... [2022-03-20 07:43:28,792 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-2.cJordan [2022-03-20 07:43:28,796 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:43:28,796 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:43:28,838 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:43:28,844 INFO L340 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 [2022-03-20 07:43:28,845 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:43:28,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 07:43:28,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 07:43:28,881 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:28,881 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:28,881 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:28,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1539324216, now seen corresponding path program 1 times [2022-03-20 07:43:28,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:28,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938581768] [2022-03-20 07:43:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:28,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:29,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:29,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:29,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938581768] [2022-03-20 07:43:29,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938581768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:29,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:29,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:29,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328858295] [2022-03-20 07:43:29,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:29,389 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:29,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:29,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:29,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:29,406 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:31,477 INFO L93 Difference]: Finished difference Result 294 states and 491 transitions. [2022-03-20 07:43:31,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:31,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-20 07:43:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:31,486 INFO L225 Difference]: With dead ends: 294 [2022-03-20 07:43:31,487 INFO L226 Difference]: Without dead ends: 268 [2022-03-20 07:43:31,488 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:31,490 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 162 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:31,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 07:43:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-03-20 07:43:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 185. [2022-03-20 07:43:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-03-20 07:43:31,520 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 49 [2022-03-20 07:43:31,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:31,520 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-03-20 07:43:31,520 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:31,520 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-03-20 07:43:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 07:43:31,522 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:31,522 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:31,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:43:31,522 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:31,523 INFO L85 PathProgramCache]: Analyzing trace with hash 503839874, now seen corresponding path program 1 times [2022-03-20 07:43:31,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:31,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573670757] [2022-03-20 07:43:31,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:31,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:31,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:31,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:31,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:31,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573670757] [2022-03-20 07:43:31,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573670757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:31,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:31,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449541802] [2022-03-20 07:43:31,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:31,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:31,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:31,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:31,672 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:33,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:35,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:35,073 INFO L93 Difference]: Finished difference Result 213 states and 334 transitions. [2022-03-20 07:43:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:35,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 07:43:35,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:35,075 INFO L225 Difference]: With dead ends: 213 [2022-03-20 07:43:35,075 INFO L226 Difference]: Without dead ends: 213 [2022-03-20 07:43:35,075 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:35,076 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:35,077 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 07:43:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-20 07:43:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-20 07:43:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.617801047120419) internal successors, (309), 191 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:35,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 313 transitions. [2022-03-20 07:43:35,084 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 313 transitions. Word has length 50 [2022-03-20 07:43:35,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:35,084 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 313 transitions. [2022-03-20 07:43:35,084 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:35,084 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 313 transitions. [2022-03-20 07:43:35,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 07:43:35,086 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:35,086 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:35,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:43:35,086 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:35,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:35,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1142284189, now seen corresponding path program 1 times [2022-03-20 07:43:35,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:35,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375052447] [2022-03-20 07:43:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:35,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:35,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:35,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375052447] [2022-03-20 07:43:35,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375052447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:35,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:35,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:35,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461802981] [2022-03-20 07:43:35,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:35,260 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:35,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:35,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:35,260 INFO L87 Difference]: Start difference. First operand 196 states and 313 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:37,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:39,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:39,150 INFO L93 Difference]: Finished difference Result 213 states and 333 transitions. [2022-03-20 07:43:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:39,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 07:43:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:39,152 INFO L225 Difference]: With dead ends: 213 [2022-03-20 07:43:39,152 INFO L226 Difference]: Without dead ends: 213 [2022-03-20 07:43:39,152 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:39,155 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:39,159 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:43:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-20 07:43:39,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-20 07:43:39,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.612565445026178) internal successors, (308), 191 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:39,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2022-03-20 07:43:39,173 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 63 [2022-03-20 07:43:39,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:39,173 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2022-03-20 07:43:39,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:39,174 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2022-03-20 07:43:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 07:43:39,175 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:39,175 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:39,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:43:39,175 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:39,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:39,175 INFO L85 PathProgramCache]: Analyzing trace with hash -745471524, now seen corresponding path program 1 times [2022-03-20 07:43:39,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:39,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431110713] [2022-03-20 07:43:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:39,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:39,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:39,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431110713] [2022-03-20 07:43:39,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431110713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:39,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:39,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:39,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976713958] [2022-03-20 07:43:39,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:39,335 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:39,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:39,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:39,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:39,337 INFO L87 Difference]: Start difference. First operand 196 states and 312 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:41,002 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 [] [2022-03-20 07:43:42,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:43,850 INFO L93 Difference]: Finished difference Result 212 states and 331 transitions. [2022-03-20 07:43:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:43,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 07:43:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:43,851 INFO L225 Difference]: With dead ends: 212 [2022-03-20 07:43:43,851 INFO L226 Difference]: Without dead ends: 212 [2022-03-20 07:43:43,851 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:43,852 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:43,852 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 07:43:43,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-20 07:43:43,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2022-03-20 07:43:43,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.6073298429319371) internal successors, (307), 191 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 311 transitions. [2022-03-20 07:43:43,857 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 311 transitions. Word has length 64 [2022-03-20 07:43:43,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:43,857 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 311 transitions. [2022-03-20 07:43:43,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:43,857 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 311 transitions. [2022-03-20 07:43:43,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 07:43:43,858 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:43,858 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:43,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:43:43,859 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:43,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:43,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2099918340, now seen corresponding path program 1 times [2022-03-20 07:43:43,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:43,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184305054] [2022-03-20 07:43:43,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:43,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:43,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:43,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:43,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184305054] [2022-03-20 07:43:43,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184305054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:43,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:43,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857446978] [2022-03-20 07:43:43,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:43,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:43,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:43,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:43,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:43,977 INFO L87 Difference]: Start difference. First operand 196 states and 311 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:46,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:46,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:46,944 INFO L93 Difference]: Finished difference Result 318 states and 500 transitions. [2022-03-20 07:43:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:46,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 07:43:46,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:46,946 INFO L225 Difference]: With dead ends: 318 [2022-03-20 07:43:46,946 INFO L226 Difference]: Without dead ends: 318 [2022-03-20 07:43:46,946 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:46,947 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 157 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:46,947 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 07:43:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-03-20 07:43:46,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 208. [2022-03-20 07:43:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-03-20 07:43:46,952 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 64 [2022-03-20 07:43:46,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:46,952 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-03-20 07:43:46,952 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:46,952 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-03-20 07:43:46,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 07:43:46,953 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:46,953 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:46,953 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:43:46,953 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:46,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1137886780, now seen corresponding path program 1 times [2022-03-20 07:43:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:46,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919547687] [2022-03-20 07:43:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:46,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:47,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:47,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:47,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919547687] [2022-03-20 07:43:47,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919547687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:47,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:47,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:47,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160334940] [2022-03-20 07:43:47,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:47,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:47,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:47,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:47,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:47,039 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:49,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:50,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:51,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:51,706 INFO L93 Difference]: Finished difference Result 318 states and 497 transitions. [2022-03-20 07:43:51,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:51,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 07:43:51,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:51,708 INFO L225 Difference]: With dead ends: 318 [2022-03-20 07:43:51,708 INFO L226 Difference]: Without dead ends: 318 [2022-03-20 07:43:51,708 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:51,709 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:51,709 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 07:43:51,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-03-20 07:43:51,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 213. [2022-03-20 07:43:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5865384615384615) internal successors, (330), 208 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 334 transitions. [2022-03-20 07:43:51,713 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 334 transitions. Word has length 64 [2022-03-20 07:43:51,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:51,714 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 334 transitions. [2022-03-20 07:43:51,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 334 transitions. [2022-03-20 07:43:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 07:43:51,714 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:51,715 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:51,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:43:51,715 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:51,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:51,715 INFO L85 PathProgramCache]: Analyzing trace with hash -171375268, now seen corresponding path program 1 times [2022-03-20 07:43:51,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:51,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319935243] [2022-03-20 07:43:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:51,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:51,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:51,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319935243] [2022-03-20 07:43:51,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319935243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:51,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:51,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:51,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601697740] [2022-03-20 07:43:51,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:51,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:51,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:51,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:51,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:51,806 INFO L87 Difference]: Start difference. First operand 213 states and 334 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:54,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:55,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:55,479 INFO L93 Difference]: Finished difference Result 317 states and 493 transitions. [2022-03-20 07:43:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:55,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 07:43:55,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:55,481 INFO L225 Difference]: With dead ends: 317 [2022-03-20 07:43:55,481 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 07:43:55,481 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:55,482 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 149 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:55,482 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:43:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 07:43:55,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 214. [2022-03-20 07:43:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5741626794258374) internal successors, (329), 209 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:55,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 333 transitions. [2022-03-20 07:43:55,486 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 333 transitions. Word has length 64 [2022-03-20 07:43:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:55,487 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 333 transitions. [2022-03-20 07:43:55,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:55,487 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 333 transitions. [2022-03-20 07:43:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:43:55,487 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:55,487 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:55,488 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:43:55,488 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:55,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:55,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1056729597, now seen corresponding path program 1 times [2022-03-20 07:43:55,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:55,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415621084] [2022-03-20 07:43:55,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:55,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:55,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:55,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415621084] [2022-03-20 07:43:55,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415621084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:55,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:55,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:55,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801393722] [2022-03-20 07:43:55,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:55,578 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:55,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:55,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:55,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:55,579 INFO L87 Difference]: Start difference. First operand 214 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:57,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:58,939 INFO L93 Difference]: Finished difference Result 317 states and 490 transitions. [2022-03-20 07:43:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:58,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 07:43:58,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:58,941 INFO L225 Difference]: With dead ends: 317 [2022-03-20 07:43:58,941 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 07:43:58,941 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:43:58,942 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 153 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:58,942 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 07:43:58,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 07:43:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 214. [2022-03-20 07:43:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5598086124401913) internal successors, (326), 209 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 330 transitions. [2022-03-20 07:43:58,946 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 330 transitions. Word has length 65 [2022-03-20 07:43:58,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:58,946 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 330 transitions. [2022-03-20 07:43:58,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:58,946 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 330 transitions. [2022-03-20 07:43:58,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 07:43:58,947 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:58,947 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:58,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:43:58,947 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:58,947 INFO L85 PathProgramCache]: Analyzing trace with hash -577608928, now seen corresponding path program 1 times [2022-03-20 07:43:58,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:58,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993878225] [2022-03-20 07:43:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:58,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:59,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:59,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:59,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993878225] [2022-03-20 07:43:59,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993878225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:59,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:59,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:59,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692084631] [2022-03-20 07:43:59,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:59,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:59,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:59,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:59,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:59,033 INFO L87 Difference]: Start difference. First operand 214 states and 330 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:01,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:03,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:03,909 INFO L93 Difference]: Finished difference Result 227 states and 346 transitions. [2022-03-20 07:44:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:03,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 07:44:03,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:03,911 INFO L225 Difference]: With dead ends: 227 [2022-03-20 07:44:03,911 INFO L226 Difference]: Without dead ends: 227 [2022-03-20 07:44:03,913 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:03,914 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 20 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:03,914 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:44:03,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-20 07:44:03,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-03-20 07:44:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.555023923444976) internal successors, (325), 209 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 329 transitions. [2022-03-20 07:44:03,918 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 329 transitions. Word has length 66 [2022-03-20 07:44:03,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:03,918 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 329 transitions. [2022-03-20 07:44:03,918 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 329 transitions. [2022-03-20 07:44:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:44:03,918 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:03,918 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:03,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:44:03,919 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:03,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1915355424, now seen corresponding path program 1 times [2022-03-20 07:44:03,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:03,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340307376] [2022-03-20 07:44:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:03,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:04,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:04,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:04,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340307376] [2022-03-20 07:44:04,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340307376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:04,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:04,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:04,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935994207] [2022-03-20 07:44:04,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:04,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:04,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:04,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:04,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:04,052 INFO L87 Difference]: Start difference. First operand 214 states and 329 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:05,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:06,946 INFO L93 Difference]: Finished difference Result 217 states and 332 transitions. [2022-03-20 07:44:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:06,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 07:44:06,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:06,948 INFO L225 Difference]: With dead ends: 217 [2022-03-20 07:44:06,948 INFO L226 Difference]: Without dead ends: 217 [2022-03-20 07:44:06,949 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:06,949 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 11 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:06,949 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 523 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 07:44:06,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-20 07:44:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2022-03-20 07:44:06,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5502392344497609) internal successors, (324), 209 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:06,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 328 transitions. [2022-03-20 07:44:06,953 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 328 transitions. Word has length 67 [2022-03-20 07:44:06,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:06,953 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 328 transitions. [2022-03-20 07:44:06,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 328 transitions. [2022-03-20 07:44:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:44:06,953 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:06,953 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:06,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:44:06,954 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:06,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1572904911, now seen corresponding path program 1 times [2022-03-20 07:44:06,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:06,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255739050] [2022-03-20 07:44:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:06,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:07,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:07,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:07,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255739050] [2022-03-20 07:44:07,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255739050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:07,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:07,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:07,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592134876] [2022-03-20 07:44:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:07,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:07,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:07,042 INFO L87 Difference]: Start difference. First operand 214 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:10,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:11,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:11,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:11,807 INFO L93 Difference]: Finished difference Result 317 states and 487 transitions. [2022-03-20 07:44:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:11,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 07:44:11,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:11,809 INFO L225 Difference]: With dead ends: 317 [2022-03-20 07:44:11,809 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 07:44:11,809 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:11,810 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 126 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:11,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 382 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:44:11,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 07:44:11,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 236. [2022-03-20 07:44:11,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5887445887445888) internal successors, (367), 231 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) [2022-03-20 07:44:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 371 transitions. [2022-03-20 07:44:11,814 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 371 transitions. Word has length 67 [2022-03-20 07:44:11,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:11,814 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 371 transitions. [2022-03-20 07:44:11,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 371 transitions. [2022-03-20 07:44:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-20 07:44:11,815 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:11,815 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:11,815 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:44:11,815 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:11,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:11,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1467131228, now seen corresponding path program 1 times [2022-03-20 07:44:11,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:11,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670551513] [2022-03-20 07:44:11,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:11,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-20 07:44:11,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:11,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670551513] [2022-03-20 07:44:11,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670551513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:11,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:11,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:11,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802162353] [2022-03-20 07:44:11,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:11,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:11,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:11,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:11,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:11,909 INFO L87 Difference]: Start difference. First operand 236 states and 371 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:13,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:14,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:15,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:15,463 INFO L93 Difference]: Finished difference Result 278 states and 431 transitions. [2022-03-20 07:44:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-03-20 07:44:15,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:15,464 INFO L225 Difference]: With dead ends: 278 [2022-03-20 07:44:15,464 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 07:44:15,464 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:15,465 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 30 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:15,465 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 07:44:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 07:44:15,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 258. [2022-03-20 07:44:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5849802371541502) internal successors, (401), 253 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 405 transitions. [2022-03-20 07:44:15,469 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 405 transitions. Word has length 95 [2022-03-20 07:44:15,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:15,469 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 405 transitions. [2022-03-20 07:44:15,469 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 405 transitions. [2022-03-20 07:44:15,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-20 07:44:15,470 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:15,470 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:15,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:44:15,470 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:15,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash -831278907, now seen corresponding path program 1 times [2022-03-20 07:44:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:15,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979063099] [2022-03-20 07:44:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:15,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 07:44:15,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:15,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979063099] [2022-03-20 07:44:15,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979063099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:15,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:15,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:15,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058118652] [2022-03-20 07:44:15,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:15,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:15,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:15,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:15,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:15,566 INFO L87 Difference]: Start difference. First operand 258 states and 405 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:18,942 INFO L93 Difference]: Finished difference Result 377 states and 585 transitions. [2022-03-20 07:44:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:18,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-20 07:44:18,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:18,944 INFO L225 Difference]: With dead ends: 377 [2022-03-20 07:44:18,944 INFO L226 Difference]: Without dead ends: 377 [2022-03-20 07:44:18,944 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:18,944 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 149 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:18,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 618 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 07:44:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-03-20 07:44:18,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 274. [2022-03-20 07:44:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5724907063197027) internal successors, (423), 269 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 427 transitions. [2022-03-20 07:44:18,949 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 427 transitions. Word has length 108 [2022-03-20 07:44:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:18,949 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 427 transitions. [2022-03-20 07:44:18,949 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:18,949 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 427 transitions. [2022-03-20 07:44:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 07:44:18,949 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:18,950 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:18,950 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:44:18,950 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:18,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1395619266, now seen corresponding path program 1 times [2022-03-20 07:44:18,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:18,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403360405] [2022-03-20 07:44:18,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:18,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:19,044 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 07:44:19,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:19,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403360405] [2022-03-20 07:44:19,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403360405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:19,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:19,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:19,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494608036] [2022-03-20 07:44:19,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:19,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:19,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:19,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:19,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:19,046 INFO L87 Difference]: Start difference. First operand 274 states and 427 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:21,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:22,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:22,799 INFO L93 Difference]: Finished difference Result 287 states and 442 transitions. [2022-03-20 07:44:22,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:22,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-20 07:44:22,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:22,800 INFO L225 Difference]: With dead ends: 287 [2022-03-20 07:44:22,800 INFO L226 Difference]: Without dead ends: 287 [2022-03-20 07:44:22,801 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:22,801 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 20 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:22,801 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 588 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:44:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-20 07:44:22,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 274. [2022-03-20 07:44:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5687732342007434) internal successors, (422), 269 states have internal predecessors, (422), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 426 transitions. [2022-03-20 07:44:22,805 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 426 transitions. Word has length 109 [2022-03-20 07:44:22,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:22,805 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 426 transitions. [2022-03-20 07:44:22,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 426 transitions. [2022-03-20 07:44:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 07:44:22,806 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:22,806 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:22,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:44:22,806 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:22,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1978728096, now seen corresponding path program 1 times [2022-03-20 07:44:22,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:22,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137219624] [2022-03-20 07:44:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-20 07:44:22,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:22,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137219624] [2022-03-20 07:44:22,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137219624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:22,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:22,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:44:22,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613746901] [2022-03-20 07:44:22,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:22,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:44:22,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:22,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:44:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:22,929 INFO L87 Difference]: Start difference. First operand 274 states and 426 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:25,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:26,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:27,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:27,274 INFO L93 Difference]: Finished difference Result 283 states and 437 transitions. [2022-03-20 07:44:27,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 07:44:27,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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 110 [2022-03-20 07:44:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:27,275 INFO L225 Difference]: With dead ends: 283 [2022-03-20 07:44:27,275 INFO L226 Difference]: Without dead ends: 283 [2022-03-20 07:44:27,275 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:44:27,276 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:27,276 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 07:44:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-20 07:44:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-03-20 07:44:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:27,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-03-20 07:44:27,280 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 110 [2022-03-20 07:44:27,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:27,280 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-03-20 07:44:27,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-03-20 07:44:27,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 07:44:27,281 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:27,281 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:27,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:44:27,281 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:27,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1803452964, now seen corresponding path program 1 times [2022-03-20 07:44:27,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:27,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044298434] [2022-03-20 07:44:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:27,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:27,366 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 07:44:27,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:27,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044298434] [2022-03-20 07:44:27,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044298434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:27,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:27,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:27,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464662501] [2022-03-20 07:44:27,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:27,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:27,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:27,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:27,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:27,368 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:29,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:29,255 INFO L93 Difference]: Finished difference Result 373 states and 560 transitions. [2022-03-20 07:44:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:29,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 07:44:29,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:29,257 INFO L225 Difference]: With dead ends: 373 [2022-03-20 07:44:29,257 INFO L226 Difference]: Without dead ends: 373 [2022-03-20 07:44:29,257 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:29,257 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 151 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:29,258 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 382 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 07:44:29,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-03-20 07:44:29,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 283. [2022-03-20 07:44:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5431654676258992) internal successors, (429), 278 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 433 transitions. [2022-03-20 07:44:29,262 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 433 transitions. Word has length 112 [2022-03-20 07:44:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:29,262 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 433 transitions. [2022-03-20 07:44:29,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 433 transitions. [2022-03-20 07:44:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-20 07:44:29,263 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:29,263 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:29,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:44:29,263 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 329100950, now seen corresponding path program 1 times [2022-03-20 07:44:29,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:29,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435867408] [2022-03-20 07:44:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:29,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 07:44:29,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:29,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435867408] [2022-03-20 07:44:29,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435867408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:29,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:29,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:29,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906522516] [2022-03-20 07:44:29,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:29,398 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:29,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:29,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:29,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:29,398 INFO L87 Difference]: Start difference. First operand 283 states and 433 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:31,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:31,061 INFO L93 Difference]: Finished difference Result 300 states and 454 transitions. [2022-03-20 07:44:31,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:31,062 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 113 [2022-03-20 07:44:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:31,063 INFO L225 Difference]: With dead ends: 300 [2022-03-20 07:44:31,063 INFO L226 Difference]: Without dead ends: 300 [2022-03-20 07:44:31,063 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:31,063 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:31,064 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 07:44:31,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-03-20 07:44:31,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-03-20 07:44:31,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.539568345323741) internal successors, (428), 278 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 432 transitions. [2022-03-20 07:44:31,067 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 432 transitions. Word has length 113 [2022-03-20 07:44:31,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:31,068 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 432 transitions. [2022-03-20 07:44:31,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 432 transitions. [2022-03-20 07:44:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 07:44:31,068 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:31,068 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:31,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:44:31,069 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:31,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1124427590, now seen corresponding path program 1 times [2022-03-20 07:44:31,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:31,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670083757] [2022-03-20 07:44:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:31,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 07:44:31,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:31,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670083757] [2022-03-20 07:44:31,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670083757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:31,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:31,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:44:31,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961222254] [2022-03-20 07:44:31,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:31,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:44:31,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:31,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:44:31,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:44:31,163 INFO L87 Difference]: Start difference. First operand 283 states and 432 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:32,916 INFO L93 Difference]: Finished difference Result 535 states and 816 transitions. [2022-03-20 07:44:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:44:32,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 07:44:32,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:32,934 INFO L225 Difference]: With dead ends: 535 [2022-03-20 07:44:32,934 INFO L226 Difference]: Without dead ends: 535 [2022-03-20 07:44:32,935 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:44:32,935 INFO L913 BasicCegarLoop]: 348 mSDtfsCounter, 164 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:32,935 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 542 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 07:44:32,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-20 07:44:32,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2022-03-20 07:44:32,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5320754716981133) internal successors, (812), 530 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 816 transitions. [2022-03-20 07:44:32,942 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 816 transitions. Word has length 117 [2022-03-20 07:44:32,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:32,942 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 816 transitions. [2022-03-20 07:44:32,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:32,942 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 816 transitions. [2022-03-20 07:44:32,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 07:44:32,943 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:32,943 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:32,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:44:32,943 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:32,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1608102917, now seen corresponding path program 1 times [2022-03-20 07:44:32,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:32,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904427810] [2022-03-20 07:44:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:32,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:33,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:44:33,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:33,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904427810] [2022-03-20 07:44:33,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904427810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:33,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:33,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:33,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365980160] [2022-03-20 07:44:33,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:33,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:33,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:33,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:33,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:33,046 INFO L87 Difference]: Start difference. First operand 535 states and 816 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:35,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:36,214 INFO L93 Difference]: Finished difference Result 744 states and 1118 transitions. [2022-03-20 07:44:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:36,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 07:44:36,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:36,217 INFO L225 Difference]: With dead ends: 744 [2022-03-20 07:44:36,217 INFO L226 Difference]: Without dead ends: 744 [2022-03-20 07:44:36,217 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:36,218 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 92 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:36,218 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 523 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 07:44:36,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-03-20 07:44:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 602. [2022-03-20 07:44:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.5393634840871022) internal successors, (919), 597 states have internal predecessors, (919), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 923 transitions. [2022-03-20 07:44:36,228 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 923 transitions. Word has length 117 [2022-03-20 07:44:36,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:36,228 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 923 transitions. [2022-03-20 07:44:36,228 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 923 transitions. [2022-03-20 07:44:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 07:44:36,229 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:36,229 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:36,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:44:36,230 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:36,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1361789830, now seen corresponding path program 1 times [2022-03-20 07:44:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:36,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620769325] [2022-03-20 07:44:36,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:36,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:36,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:36,337 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 07:44:36,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:36,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620769325] [2022-03-20 07:44:36,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620769325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:36,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:36,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:36,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101696370] [2022-03-20 07:44:36,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:36,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:36,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:36,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:36,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:36,339 INFO L87 Difference]: Start difference. First operand 602 states and 923 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:37,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:39,049 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 [] [2022-03-20 07:44:41,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:41,017 INFO L93 Difference]: Finished difference Result 659 states and 1002 transitions. [2022-03-20 07:44:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:41,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 07:44:41,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:41,020 INFO L225 Difference]: With dead ends: 659 [2022-03-20 07:44:41,020 INFO L226 Difference]: Without dead ends: 659 [2022-03-20 07:44:41,020 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:41,022 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 36 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:41,023 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 621 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:44:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-03-20 07:44:41,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 626. [2022-03-20 07:44:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 621 states have (on average 1.537842190016103) internal successors, (955), 621 states have internal predecessors, (955), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 959 transitions. [2022-03-20 07:44:41,035 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 959 transitions. Word has length 117 [2022-03-20 07:44:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:41,035 INFO L478 AbstractCegarLoop]: Abstraction has 626 states and 959 transitions. [2022-03-20 07:44:41,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 959 transitions. [2022-03-20 07:44:41,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 07:44:41,037 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:41,037 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:41,037 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:44:41,037 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:41,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2029915318, now seen corresponding path program 1 times [2022-03-20 07:44:41,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:41,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046478460] [2022-03-20 07:44:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:41,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:41,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-03-20 07:44:41,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:41,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046478460] [2022-03-20 07:44:41,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046478460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:41,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:41,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:44:41,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354200924] [2022-03-20 07:44:41,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:41,115 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:44:41,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:41,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:44:41,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:44:41,116 INFO L87 Difference]: Start difference. First operand 626 states and 959 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:42,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:44,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:44,228 INFO L93 Difference]: Finished difference Result 628 states and 961 transitions. [2022-03-20 07:44:44,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:44:44,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 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 122 [2022-03-20 07:44:44,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:44,230 INFO L225 Difference]: With dead ends: 628 [2022-03-20 07:44:44,230 INFO L226 Difference]: Without dead ends: 628 [2022-03-20 07:44:44,230 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:44:44,231 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:44,231 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 07:44:44,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-03-20 07:44:44,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-03-20 07:44:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.536115569823435) internal successors, (957), 623 states have internal predecessors, (957), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 961 transitions. [2022-03-20 07:44:44,240 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 961 transitions. Word has length 122 [2022-03-20 07:44:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:44,240 INFO L478 AbstractCegarLoop]: Abstraction has 628 states and 961 transitions. [2022-03-20 07:44:44,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 961 transitions. [2022-03-20 07:44:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 07:44:44,242 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:44,242 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:44,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:44:44,242 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:44,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash 467142555, now seen corresponding path program 1 times [2022-03-20 07:44:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:44,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493536038] [2022-03-20 07:44:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:44,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:44,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:44:44,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:44,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493536038] [2022-03-20 07:44:44,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493536038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:44,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:44,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846257261] [2022-03-20 07:44:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:44,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:44,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:44,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:44,339 INFO L87 Difference]: Start difference. First operand 628 states and 961 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:46,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:47,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:47,353 INFO L93 Difference]: Finished difference Result 884 states and 1329 transitions. [2022-03-20 07:44:47,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:47,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 07:44:47,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:47,356 INFO L225 Difference]: With dead ends: 884 [2022-03-20 07:44:47,356 INFO L226 Difference]: Without dead ends: 884 [2022-03-20 07:44:47,356 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:47,356 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 127 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:47,357 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 376 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 07:44:47,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-03-20 07:44:47,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 702. [2022-03-20 07:44:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 697 states have (on average 1.5480631276901005) internal successors, (1079), 697 states have internal predecessors, (1079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:47,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1083 transitions. [2022-03-20 07:44:47,364 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1083 transitions. Word has length 123 [2022-03-20 07:44:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:47,365 INFO L478 AbstractCegarLoop]: Abstraction has 702 states and 1083 transitions. [2022-03-20 07:44:47,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:47,365 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1083 transitions. [2022-03-20 07:44:47,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 07:44:47,366 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:47,366 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:47,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:44:47,366 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:47,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:47,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1791142380, now seen corresponding path program 1 times [2022-03-20 07:44:47,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:47,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199176867] [2022-03-20 07:44:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:47,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:44:47,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:47,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199176867] [2022-03-20 07:44:47,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199176867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:47,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:47,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:47,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709288524] [2022-03-20 07:44:47,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:47,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:47,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:47,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:47,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:47,458 INFO L87 Difference]: Start difference. First operand 702 states and 1083 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:49,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:51,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:52,028 INFO L93 Difference]: Finished difference Result 838 states and 1267 transitions. [2022-03-20 07:44:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:52,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 07:44:52,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:52,033 INFO L225 Difference]: With dead ends: 838 [2022-03-20 07:44:52,033 INFO L226 Difference]: Without dead ends: 838 [2022-03-20 07:44:52,034 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:52,034 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 81 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:52,034 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 523 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 527 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 07:44:52,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-03-20 07:44:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 714. [2022-03-20 07:44:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 709 states have (on average 1.5500705218617772) internal successors, (1099), 709 states have internal predecessors, (1099), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:52,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1103 transitions. [2022-03-20 07:44:52,042 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1103 transitions. Word has length 124 [2022-03-20 07:44:52,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:52,042 INFO L478 AbstractCegarLoop]: Abstraction has 714 states and 1103 transitions. [2022-03-20 07:44:52,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:52,043 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1103 transitions. [2022-03-20 07:44:52,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 07:44:52,044 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:52,044 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:52,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:44:52,044 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:52,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:52,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1305819021, now seen corresponding path program 1 times [2022-03-20 07:44:52,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:52,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85150529] [2022-03-20 07:44:52,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:52,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:44:52,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:52,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85150529] [2022-03-20 07:44:52,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85150529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:52,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:52,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:52,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637285692] [2022-03-20 07:44:52,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:52,150 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:52,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:52,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:52,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:52,150 INFO L87 Difference]: Start difference. First operand 714 states and 1103 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:54,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:55,556 INFO L93 Difference]: Finished difference Result 826 states and 1248 transitions. [2022-03-20 07:44:55,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:55,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 07:44:55,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:55,579 INFO L225 Difference]: With dead ends: 826 [2022-03-20 07:44:55,580 INFO L226 Difference]: Without dead ends: 826 [2022-03-20 07:44:55,580 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:55,580 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 69 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:55,580 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 529 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 07:44:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-03-20 07:44:55,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 720. [2022-03-20 07:44:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.5454545454545454) internal successors, (1105), 715 states have internal predecessors, (1105), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1109 transitions. [2022-03-20 07:44:55,588 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1109 transitions. Word has length 131 [2022-03-20 07:44:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:55,589 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1109 transitions. [2022-03-20 07:44:55,589 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:55,589 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1109 transitions. [2022-03-20 07:44:55,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-20 07:44:55,590 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:55,590 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:55,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:44:55,590 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:55,590 INFO L85 PathProgramCache]: Analyzing trace with hash 963957175, now seen corresponding path program 1 times [2022-03-20 07:44:55,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:55,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856200899] [2022-03-20 07:44:55,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:55,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:55,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:55,709 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:44:55,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:55,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856200899] [2022-03-20 07:44:55,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856200899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:55,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:55,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:55,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568299473] [2022-03-20 07:44:55,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:55,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:55,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:55,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:55,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:55,710 INFO L87 Difference]: Start difference. First operand 720 states and 1109 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:58,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:58,811 INFO L93 Difference]: Finished difference Result 876 states and 1310 transitions. [2022-03-20 07:44:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-03-20 07:44:58,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:58,814 INFO L225 Difference]: With dead ends: 876 [2022-03-20 07:44:58,814 INFO L226 Difference]: Without dead ends: 876 [2022-03-20 07:44:58,814 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:58,815 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 148 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:58,815 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 07:44:58,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-03-20 07:44:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 720. [2022-03-20 07:44:58,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.53006993006993) internal successors, (1094), 715 states have internal predecessors, (1094), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:58,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1098 transitions. [2022-03-20 07:44:58,822 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1098 transitions. Word has length 135 [2022-03-20 07:44:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:58,822 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1098 transitions. [2022-03-20 07:44:58,822 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1098 transitions. [2022-03-20 07:44:58,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 07:44:58,824 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:58,824 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:58,824 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:44:58,824 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:58,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:58,824 INFO L85 PathProgramCache]: Analyzing trace with hash -81620505, now seen corresponding path program 1 times [2022-03-20 07:44:58,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:58,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621702803] [2022-03-20 07:44:58,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:58,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:44:58,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:58,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621702803] [2022-03-20 07:44:58,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621702803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:58,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:58,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:58,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814317939] [2022-03-20 07:44:58,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:58,918 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:58,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:58,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:58,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:58,919 INFO L87 Difference]: Start difference. First operand 720 states and 1098 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:01,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:02,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:02,600 INFO L93 Difference]: Finished difference Result 876 states and 1302 transitions. [2022-03-20 07:45:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-20 07:45:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:02,602 INFO L225 Difference]: With dead ends: 876 [2022-03-20 07:45:02,603 INFO L226 Difference]: Without dead ends: 876 [2022-03-20 07:45:02,603 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:02,603 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 138 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:02,603 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:45:02,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-03-20 07:45:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 720. [2022-03-20 07:45:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.5188811188811189) internal successors, (1086), 715 states have internal predecessors, (1086), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1090 transitions. [2022-03-20 07:45:02,611 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1090 transitions. Word has length 139 [2022-03-20 07:45:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:02,627 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1090 transitions. [2022-03-20 07:45:02,627 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1090 transitions. [2022-03-20 07:45:02,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 07:45:02,629 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:02,629 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:02,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:45:02,629 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:02,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1051911512, now seen corresponding path program 1 times [2022-03-20 07:45:02,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:02,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777087092] [2022-03-20 07:45:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:02,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:02,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:02,740 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 07:45:02,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:02,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777087092] [2022-03-20 07:45:02,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777087092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:02,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:02,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:02,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489545790] [2022-03-20 07:45:02,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:02,740 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:02,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:02,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:02,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:02,741 INFO L87 Difference]: Start difference. First operand 720 states and 1090 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:05,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:06,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:07,046 INFO L93 Difference]: Finished difference Result 818 states and 1224 transitions. [2022-03-20 07:45:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:07,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-20 07:45:07,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:07,058 INFO L225 Difference]: With dead ends: 818 [2022-03-20 07:45:07,058 INFO L226 Difference]: Without dead ends: 818 [2022-03-20 07:45:07,058 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:07,059 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 36 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:07,062 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 619 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 07:45:07,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-03-20 07:45:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 772. [2022-03-20 07:45:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 767 states have (on average 1.514993481095176) internal successors, (1162), 767 states have internal predecessors, (1162), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1166 transitions. [2022-03-20 07:45:07,070 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1166 transitions. Word has length 139 [2022-03-20 07:45:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:07,070 INFO L478 AbstractCegarLoop]: Abstraction has 772 states and 1166 transitions. [2022-03-20 07:45:07,070 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1166 transitions. [2022-03-20 07:45:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-20 07:45:07,072 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:07,072 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:07,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:45:07,072 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:07,072 INFO L85 PathProgramCache]: Analyzing trace with hash -30045473, now seen corresponding path program 1 times [2022-03-20 07:45:07,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:07,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993072826] [2022-03-20 07:45:07,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:07,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:07,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:07,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993072826] [2022-03-20 07:45:07,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993072826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:07,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:07,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:07,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575004623] [2022-03-20 07:45:07,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:07,183 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:07,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:07,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:07,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:07,183 INFO L87 Difference]: Start difference. First operand 772 states and 1166 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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) [2022-03-20 07:45:08,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:10,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:10,742 INFO L93 Difference]: Finished difference Result 1008 states and 1498 transitions. [2022-03-20 07:45:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:10,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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 142 [2022-03-20 07:45:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:10,756 INFO L225 Difference]: With dead ends: 1008 [2022-03-20 07:45:10,756 INFO L226 Difference]: Without dead ends: 1008 [2022-03-20 07:45:10,757 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:10,757 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:10,758 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 07:45:10,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-03-20 07:45:10,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 828. [2022-03-20 07:45:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 823 states have (on average 1.5066828675577157) internal successors, (1240), 823 states have internal predecessors, (1240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1244 transitions. [2022-03-20 07:45:10,771 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1244 transitions. Word has length 142 [2022-03-20 07:45:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:10,771 INFO L478 AbstractCegarLoop]: Abstraction has 828 states and 1244 transitions. [2022-03-20 07:45:10,772 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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) [2022-03-20 07:45:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1244 transitions. [2022-03-20 07:45:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 07:45:10,787 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:10,787 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:10,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:45:10,788 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:10,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:10,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1238333083, now seen corresponding path program 1 times [2022-03-20 07:45:10,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:10,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276156971] [2022-03-20 07:45:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:10,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:10,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:10,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276156971] [2022-03-20 07:45:10,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276156971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:10,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:10,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:10,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309038936] [2022-03-20 07:45:10,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:10,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:10,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:10,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:10,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:10,878 INFO L87 Difference]: Start difference. First operand 828 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:13,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:14,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:14,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:14,925 INFO L93 Difference]: Finished difference Result 898 states and 1329 transitions. [2022-03-20 07:45:14,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:14,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-20 07:45:14,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:14,928 INFO L225 Difference]: With dead ends: 898 [2022-03-20 07:45:14,928 INFO L226 Difference]: Without dead ends: 898 [2022-03-20 07:45:14,928 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:14,928 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 67 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:14,928 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 559 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:45:14,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-03-20 07:45:14,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 828. [2022-03-20 07:45:14,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 823 states have (on average 1.5042527339003646) internal successors, (1238), 823 states have internal predecessors, (1238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1242 transitions. [2022-03-20 07:45:14,936 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1242 transitions. Word has length 143 [2022-03-20 07:45:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:14,936 INFO L478 AbstractCegarLoop]: Abstraction has 828 states and 1242 transitions. [2022-03-20 07:45:14,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1242 transitions. [2022-03-20 07:45:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 07:45:14,937 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:14,937 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:14,938 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:45:14,938 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:14,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1434976918, now seen corresponding path program 1 times [2022-03-20 07:45:14,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:14,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58339503] [2022-03-20 07:45:14,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:14,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 07:45:15,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:15,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58339503] [2022-03-20 07:45:15,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58339503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:15,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:15,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:15,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131763679] [2022-03-20 07:45:15,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:15,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:15,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:15,044 INFO L87 Difference]: Start difference. First operand 828 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:19,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:19,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:19,441 INFO L93 Difference]: Finished difference Result 541 states and 793 transitions. [2022-03-20 07:45:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:19,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 07:45:19,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:19,443 INFO L225 Difference]: With dead ends: 541 [2022-03-20 07:45:19,443 INFO L226 Difference]: Without dead ends: 541 [2022-03-20 07:45:19,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:19,444 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 145 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:19,444 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 404 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 07:45:19,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-03-20 07:45:19,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 470. [2022-03-20 07:45:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 465 states have (on average 1.4752688172043011) internal successors, (686), 465 states have internal predecessors, (686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 690 transitions. [2022-03-20 07:45:19,449 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 690 transitions. Word has length 144 [2022-03-20 07:45:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:19,449 INFO L478 AbstractCegarLoop]: Abstraction has 470 states and 690 transitions. [2022-03-20 07:45:19,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:19,449 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 690 transitions. [2022-03-20 07:45:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 07:45:19,450 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:19,450 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:19,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:45:19,450 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1789601228, now seen corresponding path program 1 times [2022-03-20 07:45:19,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:19,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305376131] [2022-03-20 07:45:19,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:19,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:19,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:19,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305376131] [2022-03-20 07:45:19,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305376131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:19,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:19,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:19,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038495750] [2022-03-20 07:45:19,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:19,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:19,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:19,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:19,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:19,656 INFO L87 Difference]: Start difference. First operand 470 states and 690 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:22,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:22,891 INFO L93 Difference]: Finished difference Result 581 states and 851 transitions. [2022-03-20 07:45:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:22,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 07:45:22,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:22,892 INFO L225 Difference]: With dead ends: 581 [2022-03-20 07:45:22,892 INFO L226 Difference]: Without dead ends: 581 [2022-03-20 07:45:22,893 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:22,893 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 125 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:22,893 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 404 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:45:22,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-03-20 07:45:22,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 500. [2022-03-20 07:45:22,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4686868686868686) internal successors, (727), 495 states have internal predecessors, (727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:22,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 731 transitions. [2022-03-20 07:45:22,898 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 731 transitions. Word has length 144 [2022-03-20 07:45:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:22,898 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 731 transitions. [2022-03-20 07:45:22,898 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 731 transitions. [2022-03-20 07:45:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 07:45:22,901 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:22,901 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:22,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:45:22,901 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1236073746, now seen corresponding path program 1 times [2022-03-20 07:45:22,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:22,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847417986] [2022-03-20 07:45:22,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:22,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:22,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:22,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:22,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847417986] [2022-03-20 07:45:22,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847417986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:22,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:22,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:22,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740055421] [2022-03-20 07:45:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:22,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:22,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:22,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:22,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:22,997 INFO L87 Difference]: Start difference. First operand 500 states and 731 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:25,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:25,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:25,385 INFO L93 Difference]: Finished difference Result 527 states and 767 transitions. [2022-03-20 07:45:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:25,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 07:45:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:25,387 INFO L225 Difference]: With dead ends: 527 [2022-03-20 07:45:25,387 INFO L226 Difference]: Without dead ends: 527 [2022-03-20 07:45:25,387 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:25,387 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 61 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:25,388 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 547 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:45:25,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-03-20 07:45:25,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 500. [2022-03-20 07:45:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4666666666666666) internal successors, (726), 495 states have internal predecessors, (726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 730 transitions. [2022-03-20 07:45:25,392 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 730 transitions. Word has length 145 [2022-03-20 07:45:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:25,392 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 730 transitions. [2022-03-20 07:45:25,392 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:25,392 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 730 transitions. [2022-03-20 07:45:25,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 07:45:25,393 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:25,393 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:25,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:45:25,393 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:25,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:25,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2083258222, now seen corresponding path program 1 times [2022-03-20 07:45:25,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:25,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706752625] [2022-03-20 07:45:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:25,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:25,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:25,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706752625] [2022-03-20 07:45:25,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706752625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:25,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:25,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:25,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528701155] [2022-03-20 07:45:25,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:25,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:25,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:25,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:25,486 INFO L87 Difference]: Start difference. First operand 500 states and 730 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:28,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:28,077 INFO L93 Difference]: Finished difference Result 525 states and 764 transitions. [2022-03-20 07:45:28,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:28,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 07:45:28,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:28,079 INFO L225 Difference]: With dead ends: 525 [2022-03-20 07:45:28,079 INFO L226 Difference]: Without dead ends: 525 [2022-03-20 07:45:28,079 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:28,080 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 54 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:28,080 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 549 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 07:45:28,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-03-20 07:45:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 500. [2022-03-20 07:45:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4646464646464648) internal successors, (725), 495 states have internal predecessors, (725), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 729 transitions. [2022-03-20 07:45:28,085 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 729 transitions. Word has length 145 [2022-03-20 07:45:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:28,085 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 729 transitions. [2022-03-20 07:45:28,085 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 729 transitions. [2022-03-20 07:45:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 07:45:28,086 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:28,086 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:28,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:45:28,086 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash -932365580, now seen corresponding path program 1 times [2022-03-20 07:45:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:28,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152994435] [2022-03-20 07:45:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:28,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:28,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:28,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152994435] [2022-03-20 07:45:28,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152994435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:28,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:28,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:28,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027128413] [2022-03-20 07:45:28,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:28,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:28,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:28,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:28,179 INFO L87 Difference]: Start difference. First operand 500 states and 729 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:30,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:31,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:31,531 INFO L93 Difference]: Finished difference Result 523 states and 760 transitions. [2022-03-20 07:45:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:31,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 07:45:31,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:31,533 INFO L225 Difference]: With dead ends: 523 [2022-03-20 07:45:31,533 INFO L226 Difference]: Without dead ends: 523 [2022-03-20 07:45:31,533 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:31,536 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 56 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:31,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 07:45:31,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-20 07:45:31,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 500. [2022-03-20 07:45:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4626262626262627) internal successors, (724), 495 states have internal predecessors, (724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 728 transitions. [2022-03-20 07:45:31,540 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 728 transitions. Word has length 146 [2022-03-20 07:45:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:31,541 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 728 transitions. [2022-03-20 07:45:31,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 728 transitions. [2022-03-20 07:45:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 07:45:31,542 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:31,542 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:31,542 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:45:31,542 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:31,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash 423911587, now seen corresponding path program 1 times [2022-03-20 07:45:31,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:31,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487856394] [2022-03-20 07:45:31,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:31,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:31,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:31,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:31,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487856394] [2022-03-20 07:45:31,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487856394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:31,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:31,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828149890] [2022-03-20 07:45:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:31,639 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:31,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:31,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:31,639 INFO L87 Difference]: Start difference. First operand 500 states and 728 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:33,916 INFO L93 Difference]: Finished difference Result 523 states and 759 transitions. [2022-03-20 07:45:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:33,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-20 07:45:33,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:33,918 INFO L225 Difference]: With dead ends: 523 [2022-03-20 07:45:33,918 INFO L226 Difference]: Without dead ends: 523 [2022-03-20 07:45:33,918 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:33,918 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 49 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:33,921 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:45:33,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-20 07:45:33,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 500. [2022-03-20 07:45:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4606060606060607) internal successors, (723), 495 states have internal predecessors, (723), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 727 transitions. [2022-03-20 07:45:33,928 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 727 transitions. Word has length 149 [2022-03-20 07:45:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:33,928 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 727 transitions. [2022-03-20 07:45:33,928 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 727 transitions. [2022-03-20 07:45:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 07:45:33,929 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:33,929 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:33,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:45:33,929 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:33,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1331112290, now seen corresponding path program 1 times [2022-03-20 07:45:33,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:33,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338395946] [2022-03-20 07:45:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:33,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:34,021 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:34,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:34,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338395946] [2022-03-20 07:45:34,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338395946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:34,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:34,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:34,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421425487] [2022-03-20 07:45:34,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:34,022 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:34,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:34,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:34,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:34,023 INFO L87 Difference]: Start difference. First operand 500 states and 727 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:36,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:36,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:36,514 INFO L93 Difference]: Finished difference Result 571 states and 826 transitions. [2022-03-20 07:45:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:36,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-20 07:45:36,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:36,516 INFO L225 Difference]: With dead ends: 571 [2022-03-20 07:45:36,516 INFO L226 Difference]: Without dead ends: 571 [2022-03-20 07:45:36,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:36,517 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 121 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:36,517 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 404 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:45:36,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-03-20 07:45:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 500. [2022-03-20 07:45:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4525252525252526) internal successors, (719), 495 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 723 transitions. [2022-03-20 07:45:36,521 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 723 transitions. Word has length 150 [2022-03-20 07:45:36,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:36,521 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 723 transitions. [2022-03-20 07:45:36,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 723 transitions. [2022-03-20 07:45:36,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 07:45:36,522 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:36,522 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:36,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:45:36,523 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:36,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:36,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1878533287, now seen corresponding path program 1 times [2022-03-20 07:45:36,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:36,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969323104] [2022-03-20 07:45:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:36,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:36,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:36,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969323104] [2022-03-20 07:45:36,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969323104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:36,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:36,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:36,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090414175] [2022-03-20 07:45:36,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:36,644 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:36,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:36,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:36,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:36,645 INFO L87 Difference]: Start difference. First operand 500 states and 723 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:39,949 INFO L93 Difference]: Finished difference Result 517 states and 745 transitions. [2022-03-20 07:45:39,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:39,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-20 07:45:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:39,951 INFO L225 Difference]: With dead ends: 517 [2022-03-20 07:45:39,951 INFO L226 Difference]: Without dead ends: 517 [2022-03-20 07:45:39,951 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:39,951 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 38 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:39,952 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 559 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 07:45:39,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-03-20 07:45:39,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 500. [2022-03-20 07:45:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4505050505050505) internal successors, (718), 495 states have internal predecessors, (718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:39,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 722 transitions. [2022-03-20 07:45:39,956 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 722 transitions. Word has length 150 [2022-03-20 07:45:39,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:39,956 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 722 transitions. [2022-03-20 07:45:39,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 722 transitions. [2022-03-20 07:45:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-20 07:45:39,957 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:39,957 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:39,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 07:45:39,957 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:39,958 INFO L85 PathProgramCache]: Analyzing trace with hash -200206081, now seen corresponding path program 1 times [2022-03-20 07:45:39,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:39,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536906118] [2022-03-20 07:45:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:39,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:40,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:40,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536906118] [2022-03-20 07:45:40,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536906118] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:40,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:40,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:40,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892421100] [2022-03-20 07:45:40,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:40,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:40,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:40,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:40,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:40,055 INFO L87 Difference]: Start difference. First operand 500 states and 722 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:43,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:44,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:44,052 INFO L93 Difference]: Finished difference Result 571 states and 821 transitions. [2022-03-20 07:45:44,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:44,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-20 07:45:44,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:44,054 INFO L225 Difference]: With dead ends: 571 [2022-03-20 07:45:44,054 INFO L226 Difference]: Without dead ends: 571 [2022-03-20 07:45:44,055 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:44,055 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 118 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:44,055 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 406 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:45:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-03-20 07:45:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 500. [2022-03-20 07:45:44,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4424242424242424) internal successors, (714), 495 states have internal predecessors, (714), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 718 transitions. [2022-03-20 07:45:44,059 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 718 transitions. Word has length 151 [2022-03-20 07:45:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:44,060 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 718 transitions. [2022-03-20 07:45:44,060 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 718 transitions. [2022-03-20 07:45:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 07:45:44,061 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:44,061 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:44,061 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 07:45:44,061 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:44,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:44,061 INFO L85 PathProgramCache]: Analyzing trace with hash -293704765, now seen corresponding path program 1 times [2022-03-20 07:45:44,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:44,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296439351] [2022-03-20 07:45:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:44,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:44,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:45:44,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:44,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296439351] [2022-03-20 07:45:44,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296439351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:44,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:44,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:44,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101017374] [2022-03-20 07:45:44,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:44,145 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:44,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:44,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:44,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:44,145 INFO L87 Difference]: Start difference. First operand 500 states and 718 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) [2022-03-20 07:45:46,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:46,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:46,282 INFO L93 Difference]: Finished difference Result 942 states and 1354 transitions. [2022-03-20 07:45:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:46,282 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 158 [2022-03-20 07:45:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:46,285 INFO L225 Difference]: With dead ends: 942 [2022-03-20 07:45:46,285 INFO L226 Difference]: Without dead ends: 942 [2022-03-20 07:45:46,285 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:46,285 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:46,285 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 433 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 07:45:46,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-03-20 07:45:46,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-03-20 07:45:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 937 states have (on average 1.4407684098185698) internal successors, (1350), 937 states have internal predecessors, (1350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1354 transitions. [2022-03-20 07:45:46,293 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1354 transitions. Word has length 158 [2022-03-20 07:45:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:46,293 INFO L478 AbstractCegarLoop]: Abstraction has 942 states and 1354 transitions. [2022-03-20 07:45:46,293 INFO L479 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) [2022-03-20 07:45:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1354 transitions. [2022-03-20 07:45:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-20 07:45:46,295 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:46,295 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:46,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 07:45:46,295 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:46,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:46,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1249774760, now seen corresponding path program 1 times [2022-03-20 07:45:46,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:46,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609823421] [2022-03-20 07:45:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:46,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-20 07:45:46,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:46,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609823421] [2022-03-20 07:45:46,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609823421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:46,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:46,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:46,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316712792] [2022-03-20 07:45:46,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:46,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:46,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:46,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:46,393 INFO L87 Difference]: Start difference. First operand 942 states and 1354 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:48,959 INFO L93 Difference]: Finished difference Result 986 states and 1415 transitions. [2022-03-20 07:45:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-03-20 07:45:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:48,962 INFO L225 Difference]: With dead ends: 986 [2022-03-20 07:45:48,962 INFO L226 Difference]: Without dead ends: 986 [2022-03-20 07:45:48,962 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:45:48,963 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 40 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:48,963 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 618 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 07:45:48,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-03-20 07:45:48,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 942. [2022-03-20 07:45:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 937 states have (on average 1.4386339381003201) internal successors, (1348), 937 states have internal predecessors, (1348), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1352 transitions. [2022-03-20 07:45:48,970 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1352 transitions. Word has length 169 [2022-03-20 07:45:48,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:48,970 INFO L478 AbstractCegarLoop]: Abstraction has 942 states and 1352 transitions. [2022-03-20 07:45:48,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:48,971 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1352 transitions. [2022-03-20 07:45:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-20 07:45:48,972 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:48,972 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:48,972 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 07:45:48,972 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash -361226516, now seen corresponding path program 1 times [2022-03-20 07:45:48,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:48,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141212146] [2022-03-20 07:45:48,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:48,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:49,153 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-20 07:45:49,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:49,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141212146] [2022-03-20 07:45:49,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141212146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:49,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:49,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:49,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346467174] [2022-03-20 07:45:49,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:49,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:49,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:49,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:49,156 INFO L87 Difference]: Start difference. First operand 942 states and 1352 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:50,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:51,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:51,337 INFO L93 Difference]: Finished difference Result 1384 states and 1987 transitions. [2022-03-20 07:45:51,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:51,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-03-20 07:45:51,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:51,340 INFO L225 Difference]: With dead ends: 1384 [2022-03-20 07:45:51,341 INFO L226 Difference]: Without dead ends: 1384 [2022-03-20 07:45:51,341 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:51,341 INFO L913 BasicCegarLoop]: 389 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:51,341 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 583 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 07:45:51,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-03-20 07:45:51,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2022-03-20 07:45:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1379 states have (on average 1.4379985496736767) internal successors, (1983), 1379 states have internal predecessors, (1983), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1987 transitions. [2022-03-20 07:45:51,354 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1987 transitions. Word has length 194 [2022-03-20 07:45:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:51,354 INFO L478 AbstractCegarLoop]: Abstraction has 1384 states and 1987 transitions. [2022-03-20 07:45:51,354 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:51,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1987 transitions. [2022-03-20 07:45:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-20 07:45:51,359 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:51,359 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:51,359 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 07:45:51,359 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:51,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:51,359 INFO L85 PathProgramCache]: Analyzing trace with hash -822967401, now seen corresponding path program 1 times [2022-03-20 07:45:51,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:51,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100391695] [2022-03-20 07:45:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:51,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-03-20 07:45:51,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:51,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100391695] [2022-03-20 07:45:51,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100391695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:51,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:51,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:51,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866699597] [2022-03-20 07:45:51,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:51,466 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:51,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:51,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:51,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:51,467 INFO L87 Difference]: Start difference. First operand 1384 states and 1987 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:53,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:53,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:53,891 INFO L93 Difference]: Finished difference Result 1826 states and 2622 transitions. [2022-03-20 07:45:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:53,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-03-20 07:45:53,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:53,896 INFO L225 Difference]: With dead ends: 1826 [2022-03-20 07:45:53,896 INFO L226 Difference]: Without dead ends: 1826 [2022-03-20 07:45:53,896 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:53,909 INFO L913 BasicCegarLoop]: 391 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:53,909 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 585 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:45:53,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2022-03-20 07:45:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1826. [2022-03-20 07:45:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1821 states have (on average 1.4376716090060406) internal successors, (2618), 1821 states have internal predecessors, (2618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:53,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2622 transitions. [2022-03-20 07:45:53,924 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2622 transitions. Word has length 195 [2022-03-20 07:45:53,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:53,925 INFO L478 AbstractCegarLoop]: Abstraction has 1826 states and 2622 transitions. [2022-03-20 07:45:53,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2622 transitions. [2022-03-20 07:45:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-20 07:45:53,927 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:53,928 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:53,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 07:45:53,928 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:53,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash -864047940, now seen corresponding path program 1 times [2022-03-20 07:45:53,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:53,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783493986] [2022-03-20 07:45:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:53,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:54,037 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-20 07:45:54,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:54,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783493986] [2022-03-20 07:45:54,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783493986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:54,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:54,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:54,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157406627] [2022-03-20 07:45:54,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:54,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:54,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:54,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:54,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:54,038 INFO L87 Difference]: Start difference. First operand 1826 states and 2622 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:55,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:56,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:56,774 INFO L93 Difference]: Finished difference Result 2269 states and 3264 transitions. [2022-03-20 07:45:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:56,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-03-20 07:45:56,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:56,779 INFO L225 Difference]: With dead ends: 2269 [2022-03-20 07:45:56,780 INFO L226 Difference]: Without dead ends: 2269 [2022-03-20 07:45:56,780 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:56,780 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:56,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 384 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 07:45:56,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2022-03-20 07:45:56,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2269. [2022-03-20 07:45:56,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 2264 states have (on average 1.4399293286219081) internal successors, (3260), 2264 states have internal predecessors, (3260), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:56,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 3264 transitions. [2022-03-20 07:45:56,798 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 3264 transitions. Word has length 201 [2022-03-20 07:45:56,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:56,798 INFO L478 AbstractCegarLoop]: Abstraction has 2269 states and 3264 transitions. [2022-03-20 07:45:56,798 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:56,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3264 transitions. [2022-03-20 07:45:56,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-20 07:45:56,801 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:56,801 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:56,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 07:45:56,801 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:56,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1522418342, now seen corresponding path program 1 times [2022-03-20 07:45:56,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:56,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341988365] [2022-03-20 07:45:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:56,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:56,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-03-20 07:45:56,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:56,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341988365] [2022-03-20 07:45:56,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341988365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:56,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:56,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:56,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913905177] [2022-03-20 07:45:56,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:56,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:56,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:56,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:56,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:56,953 INFO L87 Difference]: Start difference. First operand 2269 states and 3264 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:58,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:59,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:59,555 INFO L93 Difference]: Finished difference Result 2712 states and 3907 transitions. [2022-03-20 07:45:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:59,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2022-03-20 07:45:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:59,566 INFO L225 Difference]: With dead ends: 2712 [2022-03-20 07:45:59,566 INFO L226 Difference]: Without dead ends: 2712 [2022-03-20 07:45:59,566 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:59,567 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:59,567 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 383 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 07:45:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-03-20 07:45:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2712. [2022-03-20 07:45:59,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 2707 states have (on average 1.4418175101588475) internal successors, (3903), 2707 states have internal predecessors, (3903), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:59,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 3907 transitions. [2022-03-20 07:45:59,596 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 3907 transitions. Word has length 233 [2022-03-20 07:45:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:59,597 INFO L478 AbstractCegarLoop]: Abstraction has 2712 states and 3907 transitions. [2022-03-20 07:45:59,597 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 3907 transitions. [2022-03-20 07:45:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 07:45:59,600 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:59,600 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:59,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 07:45:59,601 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:59,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:59,601 INFO L85 PathProgramCache]: Analyzing trace with hash 928482833, now seen corresponding path program 1 times [2022-03-20 07:45:59,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:59,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119036988] [2022-03-20 07:45:59,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:59,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-03-20 07:45:59,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:59,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119036988] [2022-03-20 07:45:59,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119036988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:59,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:59,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:59,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995905459] [2022-03-20 07:45:59,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:59,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:59,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:59,749 INFO L87 Difference]: Start difference. First operand 2712 states and 3907 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:01,099 INFO L93 Difference]: Finished difference Result 3155 states and 4551 transitions. [2022-03-20 07:46:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:01,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 07:46:01,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:01,103 INFO L225 Difference]: With dead ends: 3155 [2022-03-20 07:46:01,103 INFO L226 Difference]: Without dead ends: 3155 [2022-03-20 07:46:01,103 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:01,104 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:01,104 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 382 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 07:46:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2022-03-20 07:46:01,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3155. [2022-03-20 07:46:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3155 states, 3150 states have (on average 1.4434920634920634) internal successors, (4547), 3150 states have internal predecessors, (4547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 4551 transitions. [2022-03-20 07:46:01,126 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 4551 transitions. Word has length 235 [2022-03-20 07:46:01,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:01,126 INFO L478 AbstractCegarLoop]: Abstraction has 3155 states and 4551 transitions. [2022-03-20 07:46:01,127 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 4551 transitions. [2022-03-20 07:46:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 07:46:01,131 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:01,131 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:01,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 07:46:01,131 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:01,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:01,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1216969421, now seen corresponding path program 1 times [2022-03-20 07:46:01,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:01,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636608204] [2022-03-20 07:46:01,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:01,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:01,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-20 07:46:01,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:01,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636608204] [2022-03-20 07:46:01,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636608204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:01,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:01,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:46:01,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131650561] [2022-03-20 07:46:01,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:01,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:46:01,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:01,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:46:01,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:46:01,253 INFO L87 Difference]: Start difference. First operand 3155 states and 4551 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:03,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:03,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:03,655 INFO L93 Difference]: Finished difference Result 4163 states and 5983 transitions. [2022-03-20 07:46:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:46:03,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-20 07:46:03,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:03,663 INFO L225 Difference]: With dead ends: 4163 [2022-03-20 07:46:03,663 INFO L226 Difference]: Without dead ends: 4163 [2022-03-20 07:46:03,663 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:46:03,664 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:03,665 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 400 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:46:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2022-03-20 07:46:03,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 3603. [2022-03-20 07:46:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3598 states have (on average 1.4446914952751528) internal successors, (5198), 3598 states have internal predecessors, (5198), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 5202 transitions. [2022-03-20 07:46:03,700 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 5202 transitions. Word has length 268 [2022-03-20 07:46:03,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:03,700 INFO L478 AbstractCegarLoop]: Abstraction has 3603 states and 5202 transitions. [2022-03-20 07:46:03,700 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 5202 transitions. [2022-03-20 07:46:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-20 07:46:03,722 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:03,723 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:03,723 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 07:46:03,723 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:03,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:03,723 INFO L85 PathProgramCache]: Analyzing trace with hash -352741277, now seen corresponding path program 1 times [2022-03-20 07:46:03,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:03,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770060602] [2022-03-20 07:46:03,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:03,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-20 07:46:03,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:03,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770060602] [2022-03-20 07:46:03,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770060602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:03,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:03,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:46:03,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584762156] [2022-03-20 07:46:03,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:03,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:46:03,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:03,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:46:03,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:03,856 INFO L87 Difference]: Start difference. First operand 3603 states and 5202 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:07,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:07,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:07,551 INFO L93 Difference]: Finished difference Result 4105 states and 5925 transitions. [2022-03-20 07:46:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:07,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-03-20 07:46:07,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:07,556 INFO L225 Difference]: With dead ends: 4105 [2022-03-20 07:46:07,556 INFO L226 Difference]: Without dead ends: 4105 [2022-03-20 07:46:07,556 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:07,557 INFO L913 BasicCegarLoop]: 388 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:07,557 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 582 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:46:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2022-03-20 07:46:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 4105. [2022-03-20 07:46:07,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4105 states, 4100 states have (on average 1.4441463414634146) internal successors, (5921), 4100 states have internal predecessors, (5921), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 5925 transitions. [2022-03-20 07:46:07,609 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 5925 transitions. Word has length 274 [2022-03-20 07:46:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:07,609 INFO L478 AbstractCegarLoop]: Abstraction has 4105 states and 5925 transitions. [2022-03-20 07:46:07,609 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 5925 transitions. [2022-03-20 07:46:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-20 07:46:07,614 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:07,614 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:07,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 07:46:07,614 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:07,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1108838722, now seen corresponding path program 1 times [2022-03-20 07:46:07,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:07,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339974523] [2022-03-20 07:46:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:07,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:07,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-20 07:46:07,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:07,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339974523] [2022-03-20 07:46:07,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339974523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:07,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:07,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:46:07,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997782164] [2022-03-20 07:46:07,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:07,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:46:07,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:07,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:46:07,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:07,733 INFO L87 Difference]: Start difference. First operand 4105 states and 5925 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:10,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:10,755 INFO L93 Difference]: Finished difference Result 4579 states and 6606 transitions. [2022-03-20 07:46:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-03-20 07:46:10,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:10,792 INFO L225 Difference]: With dead ends: 4579 [2022-03-20 07:46:10,793 INFO L226 Difference]: Without dead ends: 4579 [2022-03-20 07:46:10,793 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:10,794 INFO L913 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:10,794 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 07:46:10,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2022-03-20 07:46:10,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 4579. [2022-03-20 07:46:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4579 states, 4574 states have (on average 1.4433756012243113) internal successors, (6602), 4574 states have internal predecessors, (6602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4579 states to 4579 states and 6606 transitions. [2022-03-20 07:46:10,829 INFO L78 Accepts]: Start accepts. Automaton has 4579 states and 6606 transitions. Word has length 274 [2022-03-20 07:46:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:10,829 INFO L478 AbstractCegarLoop]: Abstraction has 4579 states and 6606 transitions. [2022-03-20 07:46:10,829 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:10,829 INFO L276 IsEmpty]: Start isEmpty. Operand 4579 states and 6606 transitions. [2022-03-20 07:46:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-20 07:46:10,835 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:10,835 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:10,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 07:46:10,835 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:10,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash 965804888, now seen corresponding path program 1 times [2022-03-20 07:46:10,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:10,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345625775] [2022-03-20 07:46:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:10,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:10,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-03-20 07:46:10,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:10,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345625775] [2022-03-20 07:46:10,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345625775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:10,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:10,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:46:10,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593577028] [2022-03-20 07:46:10,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:10,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:46:10,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:10,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:46:10,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:10,995 INFO L87 Difference]: Start difference. First operand 4579 states and 6606 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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) [2022-03-20 07:46:13,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:14,676 INFO L93 Difference]: Finished difference Result 5086 states and 7346 transitions. [2022-03-20 07:46:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:14,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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 349 [2022-03-20 07:46:14,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:14,713 INFO L225 Difference]: With dead ends: 5086 [2022-03-20 07:46:14,713 INFO L226 Difference]: Without dead ends: 5086 [2022-03-20 07:46:14,713 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:14,714 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:14,714 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 379 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:46:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2022-03-20 07:46:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 5086. [2022-03-20 07:46:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 5081 states have (on average 1.4449911434756937) internal successors, (7342), 5081 states have internal predecessors, (7342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7346 transitions. [2022-03-20 07:46:14,748 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7346 transitions. Word has length 349 [2022-03-20 07:46:14,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:14,748 INFO L478 AbstractCegarLoop]: Abstraction has 5086 states and 7346 transitions. [2022-03-20 07:46:14,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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) [2022-03-20 07:46:14,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7346 transitions. [2022-03-20 07:46:14,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-03-20 07:46:14,754 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:14,754 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:14,754 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 07:46:14,754 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:14,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:14,755 INFO L85 PathProgramCache]: Analyzing trace with hash -37374288, now seen corresponding path program 1 times [2022-03-20 07:46:14,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:14,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958956406] [2022-03-20 07:46:14,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:14,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-03-20 07:46:14,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:14,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958956406] [2022-03-20 07:46:14,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958956406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:14,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:14,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:46:14,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394460890] [2022-03-20 07:46:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:14,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:46:14,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:14,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:46:14,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:14,904 INFO L87 Difference]: Start difference. First operand 5086 states and 7346 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2022-03-20 07:46:16,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:18,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:19,104 INFO L93 Difference]: Finished difference Result 5593 states and 8087 transitions. [2022-03-20 07:46:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:19,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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 390 [2022-03-20 07:46:19,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:19,109 INFO L225 Difference]: With dead ends: 5593 [2022-03-20 07:46:19,109 INFO L226 Difference]: Without dead ends: 5593 [2022-03-20 07:46:19,109 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:19,109 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:19,110 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 378 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 07:46:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2022-03-20 07:46:19,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 5593. [2022-03-20 07:46:19,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5593 states, 5588 states have (on average 1.4464924838940587) internal successors, (8083), 5588 states have internal predecessors, (8083), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 8087 transitions. [2022-03-20 07:46:19,145 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 8087 transitions. Word has length 390 [2022-03-20 07:46:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:19,145 INFO L478 AbstractCegarLoop]: Abstraction has 5593 states and 8087 transitions. [2022-03-20 07:46:19,145 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2022-03-20 07:46:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 8087 transitions. [2022-03-20 07:46:19,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-20 07:46:19,151 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:19,151 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:19,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 07:46:19,151 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:19,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:19,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1764989462, now seen corresponding path program 1 times [2022-03-20 07:46:19,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:19,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798265458] [2022-03-20 07:46:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:19,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-03-20 07:46:19,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:19,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798265458] [2022-03-20 07:46:19,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798265458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:19,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:19,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:46:19,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483034205] [2022-03-20 07:46:19,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:19,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:46:19,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:19,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:46:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:46:19,355 INFO L87 Difference]: Start difference. First operand 5593 states and 8087 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:20,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:22,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:23,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:23,620 INFO L93 Difference]: Finished difference Result 6516 states and 9367 transitions. [2022-03-20 07:46:23,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:46:23,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 397 [2022-03-20 07:46:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:23,627 INFO L225 Difference]: With dead ends: 6516 [2022-03-20 07:46:23,628 INFO L226 Difference]: Without dead ends: 6516 [2022-03-20 07:46:23,628 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:46:23,631 INFO L913 BasicCegarLoop]: 274 mSDtfsCounter, 67 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:23,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 667 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 590 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 07:46:23,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6516 states. [2022-03-20 07:46:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6516 to 6044. [2022-03-20 07:46:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 6039 states have (on average 1.4459347574101673) internal successors, (8732), 6039 states have internal predecessors, (8732), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8736 transitions. [2022-03-20 07:46:23,699 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8736 transitions. Word has length 397 [2022-03-20 07:46:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:23,700 INFO L478 AbstractCegarLoop]: Abstraction has 6044 states and 8736 transitions. [2022-03-20 07:46:23,701 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8736 transitions. [2022-03-20 07:46:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-20 07:46:23,708 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:23,708 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:23,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 07:46:23,708 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:23,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2056458891, now seen corresponding path program 1 times [2022-03-20 07:46:23,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:23,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208449189] [2022-03-20 07:46:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:23,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-03-20 07:46:24,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:24,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208449189] [2022-03-20 07:46:24,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208449189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:24,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:24,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 07:46:24,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938029878] [2022-03-20 07:46:24,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:24,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:46:24,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:46:24,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:46:24,457 INFO L87 Difference]: Start difference. First operand 6044 states and 8736 transitions. Second operand has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:26,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:26,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:26,879 INFO L93 Difference]: Finished difference Result 6052 states and 8746 transitions. [2022-03-20 07:46:26,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:46:26,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 397 [2022-03-20 07:46:26,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:26,886 INFO L225 Difference]: With dead ends: 6052 [2022-03-20 07:46:26,887 INFO L226 Difference]: Without dead ends: 6044 [2022-03-20 07:46:26,887 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 07:46:26,887 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:26,888 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:46:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2022-03-20 07:46:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 6044. [2022-03-20 07:46:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 6039 states have (on average 1.4457691670806425) internal successors, (8731), 6039 states have internal predecessors, (8731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:26,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8735 transitions. [2022-03-20 07:46:26,935 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8735 transitions. Word has length 397 [2022-03-20 07:46:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:26,936 INFO L478 AbstractCegarLoop]: Abstraction has 6044 states and 8735 transitions. [2022-03-20 07:46:26,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8735 transitions. [2022-03-20 07:46:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-20 07:46:26,942 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:26,943 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:26,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 07:46:26,943 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:26,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:26,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1001650358, now seen corresponding path program 1 times [2022-03-20 07:46:26,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:26,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889965099] [2022-03-20 07:46:26,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:26,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 134 proven. 1231 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-03-20 07:46:29,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:29,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889965099] [2022-03-20 07:46:29,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889965099] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:46:29,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467190483] [2022-03-20 07:46:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:29,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:46:29,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:46:29,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:46:29,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 07:46:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:30,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 2032 conjuncts, 213 conjunts are in the unsatisfiable core [2022-03-20 07:46:30,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:46:30,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10340 treesize of output 4484 [2022-03-20 07:46:30,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:30,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5602 treesize of output 1900