/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:31:15,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:31:15,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:31:15,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:31:15,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:31:15,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:31:15,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:31:15,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:31:15,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:31:15,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:31:15,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:31:15,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:31:15,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:31:15,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:31:15,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:31:15,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:31:15,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:31:15,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:31:15,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:31:15,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:31:15,353 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:31:15,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:31:15,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:31:15,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:31:15,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:31:15,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:31:15,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:31:15,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:31:15,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:31:15,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:31:15,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:31:15,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:31:15,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:31:15,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:31:15,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:31:15,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:31:15,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:31:15,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:31:15,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:31:15,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:31:15,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:31:15,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:31:15,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:31:15,383 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:31:15,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:31:15,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:31:15,384 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:31:15,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:31:15,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:31:15,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:31:15,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:31:15,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:31:15,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:31:15,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:31:15,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:31:15,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:31:15,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:31:15,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:31:15,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:31:15,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:31:15,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:31:15,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:31:15,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:31:15,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:31:15,400 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:31:15,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:31:15,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:31:15,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:31:15,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:31:15,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:31:15,611 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:31:15,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 07:31:15,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e116bd2ab/67ba8b6c6034431d83e7df51de4a13f6/FLAG261d29b68 [2022-03-20 07:31:16,108 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:31:16,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 07:31:16,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e116bd2ab/67ba8b6c6034431d83e7df51de4a13f6/FLAG261d29b68 [2022-03-20 07:31:16,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e116bd2ab/67ba8b6c6034431d83e7df51de4a13f6 [2022-03-20 07:31:16,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:31:16,144 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:31:16,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:31:16,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:31:16,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:31:16,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7375cd2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16, skipping insertion in model container [2022-03-20 07:31:16,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:31:16,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:31:16,571 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.01.i.cil-1.c[72918,72931] [2022-03-20 07:31:16,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:31:16,602 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:31:16,686 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.01.i.cil-1.c[72918,72931] [2022-03-20 07:31:16,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:31:16,720 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:31:16,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16 WrapperNode [2022-03-20 07:31:16,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:31:16,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:31:16,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:31:16,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:31:16,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:31:16,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:31:16,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:31:16,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:31:16,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (1/1) ... [2022-03-20 07:31:16,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:31:16,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:31:16,861 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 07:31:16,902 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 07:31:16,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:31:16,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:31:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:31:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:31:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:31:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:31:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:31:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:31:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:31:17,051 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:31:17,052 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:31:19,414 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:31:19,752 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:31:19,753 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:31:19,762 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:31:19,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:31:19,767 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:31:19,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:31:19 BoogieIcfgContainer [2022-03-20 07:31:19,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:31:19,770 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:31:19,770 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:31:19,770 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:31:19,772 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:31:19" (1/1) ... [2022-03-20 07:31:19,774 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:31:19,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:31:19 BasicIcfg [2022-03-20 07:31:19,802 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:31:19,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:31:19,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:31:19,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:31:19,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:31:16" (1/4) ... [2022-03-20 07:31:19,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e7a4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:31:19, skipping insertion in model container [2022-03-20 07:31:19,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:31:16" (2/4) ... [2022-03-20 07:31:19,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e7a4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:31:19, skipping insertion in model container [2022-03-20 07:31:19,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:31:19" (3/4) ... [2022-03-20 07:31:19,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e7a4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:31:19, skipping insertion in model container [2022-03-20 07:31:19,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:31:19" (4/4) ... [2022-03-20 07:31:19,807 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.cJordan [2022-03-20 07:31:19,811 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:31:19,811 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:31:19,838 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:31:19,844 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 07:31:19,845 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:31:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 07:31:19,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 07:31:19,878 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:31:19,878 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, 1, 1, 1] [2022-03-20 07:31:19,879 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:31:19,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:31:19,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1394707426, now seen corresponding path program 1 times [2022-03-20 07:31:19,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:31:19,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985572649] [2022-03-20 07:31:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:31:19,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:31:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:31:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:20,318 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 07:31:20,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:31:20,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985572649] [2022-03-20 07:31:20,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985572649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:31:20,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:31:20,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:31:20,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528429771] [2022-03-20 07:31:20,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:31:20,324 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:31:20,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:31:20,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:31:20,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:31:20,363 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:22,409 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 07:31:22,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:31:22,981 INFO L93 Difference]: Finished difference Result 281 states and 462 transitions. [2022-03-20 07:31:22,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:31:22,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-03-20 07:31:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:31:22,990 INFO L225 Difference]: With dead ends: 281 [2022-03-20 07:31:22,990 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 07:31:22,991 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 07:31:22,993 INFO L913 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:31:22,994 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 439 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 07:31:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 07:31:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 182. [2022-03-20 07:31:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.6045197740112995) internal successors, (284), 177 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-03-20 07:31:23,028 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 53 [2022-03-20 07:31:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:31:23,028 INFO L478 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-03-20 07:31:23,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-03-20 07:31:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-20 07:31:23,030 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:31:23,030 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, 1, 1, 1, 1] [2022-03-20 07:31:23,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:31:23,031 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:31:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:31:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash 315625172, now seen corresponding path program 1 times [2022-03-20 07:31:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:31:23,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815952801] [2022-03-20 07:31:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:31:23,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:31:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:23,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:31:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:23,179 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 07:31:23,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:31:23,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815952801] [2022-03-20 07:31:23,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815952801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:31:23,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:31:23,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:31:23,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977257556] [2022-03-20 07:31:23,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:31:23,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:31:23,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:31:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:31:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:31:23,190 INFO L87 Difference]: Start difference. First operand 182 states and 288 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:24,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:26,926 WARN L534 Checker$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 07:31:28,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:30,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:31:31,483 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-03-20 07:31:31,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:31:31,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-03-20 07:31:31,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:31:31,485 INFO L225 Difference]: With dead ends: 210 [2022-03-20 07:31:31,485 INFO L226 Difference]: Without dead ends: 210 [2022-03-20 07:31:31,485 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 07:31:31,486 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 22 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:31:31,486 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 460 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 356 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-20 07:31:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-20 07:31:31,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-20 07:31:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 188 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-03-20 07:31:31,496 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 54 [2022-03-20 07:31:31,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:31:31,496 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-03-20 07:31:31,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-03-20 07:31:31,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:31:31,501 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:31:31,502 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, 1, 1, 1, 1] [2022-03-20 07:31:31,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:31:31,502 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:31:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:31:31,502 INFO L85 PathProgramCache]: Analyzing trace with hash -254321634, now seen corresponding path program 1 times [2022-03-20 07:31:31,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:31:31,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773283367] [2022-03-20 07:31:31,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:31:31,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:31:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:31:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:31,709 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 07:31:31,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:31:31,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773283367] [2022-03-20 07:31:31,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773283367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:31:31,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:31:31,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:31:31,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193763900] [2022-03-20 07:31:31,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:31:31,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:31:31,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:31:31,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:31:31,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:31:31,712 INFO L87 Difference]: Start difference. First operand 193 states and 307 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 07:31:33,727 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 07:31:34,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:31:34,221 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-03-20 07:31:34,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:31:34,221 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 07:31:34,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:31:34,223 INFO L225 Difference]: With dead ends: 210 [2022-03-20 07:31:34,223 INFO L226 Difference]: Without dead ends: 210 [2022-03-20 07:31:34,223 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 07:31:34,224 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:31:34,224 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:31:34,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-20 07:31:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-20 07:31:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6063829787234043) internal successors, (302), 188 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-03-20 07:31:34,238 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 67 [2022-03-20 07:31:34,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:31:34,238 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-03-20 07:31:34,239 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 07:31:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-03-20 07:31:34,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 07:31:34,240 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:31:34,240 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, 1, 1, 1, 1] [2022-03-20 07:31:34,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:31:34,240 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:31:34,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:31:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1913510738, now seen corresponding path program 1 times [2022-03-20 07:31:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:31:34,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361873323] [2022-03-20 07:31:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:31:34,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:31:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:34,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:31:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:34,364 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 07:31:34,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:31:34,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361873323] [2022-03-20 07:31:34,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361873323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:31:34,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:31:34,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:31:34,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279776099] [2022-03-20 07:31:34,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:31:34,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:31:34,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:31:34,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:31:34,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:31:34,366 INFO L87 Difference]: Start difference. First operand 193 states and 306 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:37,200 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 07:31:39,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:41,240 WARN L534 Checker$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 07:31:41,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:31:41,602 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-03-20 07:31:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:31:41,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 07:31:41,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:31:41,603 INFO L225 Difference]: With dead ends: 208 [2022-03-20 07:31:41,603 INFO L226 Difference]: Without dead ends: 208 [2022-03-20 07:31:41,603 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 07:31:41,604 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:31:41,604 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 350 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 07:31:41,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-03-20 07:31:41,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2022-03-20 07:31:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.601063829787234) internal successors, (301), 188 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-03-20 07:31:41,610 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 68 [2022-03-20 07:31:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:31:41,610 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-03-20 07:31:41,610 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:41,610 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-03-20 07:31:41,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 07:31:41,617 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:31:41,618 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, 1, 1, 1, 1] [2022-03-20 07:31:41,618 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:31:41,618 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:31:41,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:31:41,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1376108913, now seen corresponding path program 1 times [2022-03-20 07:31:41,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:31:41,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617699455] [2022-03-20 07:31:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:31:41,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:31:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:31:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:41,753 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 07:31:41,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:31:41,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617699455] [2022-03-20 07:31:41,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617699455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:31:41,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:31:41,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:31:41,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731085096] [2022-03-20 07:31:41,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:31:41,755 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:31:41,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:31:41,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:31:41,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:31:41,755 INFO L87 Difference]: Start difference. First operand 193 states and 305 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:44,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:46,079 WARN L534 Checker$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 07:31:48,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:31:48,463 INFO L93 Difference]: Finished difference Result 207 states and 322 transitions. [2022-03-20 07:31:48,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:31:48,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 07:31:48,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:31:48,470 INFO L225 Difference]: With dead ends: 207 [2022-03-20 07:31:48,470 INFO L226 Difference]: Without dead ends: 207 [2022-03-20 07:31:48,471 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 07:31:48,471 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:31:48,471 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2022-03-20 07:31:48,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-20 07:31:48,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2022-03-20 07:31:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5957446808510638) internal successors, (300), 188 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2022-03-20 07:31:48,477 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 68 [2022-03-20 07:31:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:31:48,477 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2022-03-20 07:31:48,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:48,477 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2022-03-20 07:31:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 07:31:48,478 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:31:48,478 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, 1, 1, 1, 1, 1] [2022-03-20 07:31:48,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:31:48,479 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:31:48,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:31:48,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595334, now seen corresponding path program 1 times [2022-03-20 07:31:48,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:31:48,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624218869] [2022-03-20 07:31:48,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:31:48,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:31:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:31:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:48,617 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 07:31:48,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:31:48,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624218869] [2022-03-20 07:31:48,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624218869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:31:48,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:31:48,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:31:48,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744861344] [2022-03-20 07:31:48,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:31:48,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:31:48,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:31:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:31:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:31:48,619 INFO L87 Difference]: Start difference. First operand 193 states and 304 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:51,389 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 07:31:53,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:55,438 WARN L534 Checker$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 07:31:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:31:55,756 INFO L93 Difference]: Finished difference Result 206 states and 320 transitions. [2022-03-20 07:31:55,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:31:55,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 07:31:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:31:55,757 INFO L225 Difference]: With dead ends: 206 [2022-03-20 07:31:55,757 INFO L226 Difference]: Without dead ends: 206 [2022-03-20 07:31:55,757 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 07:31:55,758 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:31:55,758 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 346 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-03-20 07:31:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-20 07:31:55,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-03-20 07:31:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5904255319148937) internal successors, (299), 188 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 303 transitions. [2022-03-20 07:31:55,765 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 303 transitions. Word has length 69 [2022-03-20 07:31:55,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:31:55,765 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 303 transitions. [2022-03-20 07:31:55,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:55,765 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 303 transitions. [2022-03-20 07:31:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 07:31:55,766 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:31:55,766 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, 1, 1, 1, 1, 1] [2022-03-20 07:31:55,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:31:55,766 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:31:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:31:55,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1597008666, now seen corresponding path program 1 times [2022-03-20 07:31:55,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:31:55,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96719394] [2022-03-20 07:31:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:31:55,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:31:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:55,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:31:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:31:55,862 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 07:31:55,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:31:55,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96719394] [2022-03-20 07:31:55,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96719394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:31:55,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:31:55,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:31:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880131090] [2022-03-20 07:31:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:31:55,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:31:55,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:31:55,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:31:55,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:31:55,864 INFO L87 Difference]: Start difference. First operand 193 states and 303 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:31:57,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:31:59,474 WARN L534 Checker$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 07:32:01,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:03,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:03,996 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-03-20 07:32:03,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:03,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 07:32:03,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:03,999 INFO L225 Difference]: With dead ends: 309 [2022-03-20 07:32:03,999 INFO L226 Difference]: Without dead ends: 309 [2022-03-20 07:32:03,999 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 07:32:04,000 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 144 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:04,000 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 323 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-20 07:32:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-20 07:32:04,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 205. [2022-03-20 07:32:04,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.575) internal successors, (315), 200 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 319 transitions. [2022-03-20 07:32:04,005 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 319 transitions. Word has length 69 [2022-03-20 07:32:04,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:04,005 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 319 transitions. [2022-03-20 07:32:04,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 319 transitions. [2022-03-20 07:32:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 07:32:04,006 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:04,006 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, 1, 1, 1, 1, 1] [2022-03-20 07:32:04,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:32:04,006 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:04,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:04,006 INFO L85 PathProgramCache]: Analyzing trace with hash 511071466, now seen corresponding path program 1 times [2022-03-20 07:32:04,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:04,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742003481] [2022-03-20 07:32:04,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:04,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:04,118 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 07:32:04,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:04,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742003481] [2022-03-20 07:32:04,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742003481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:04,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:04,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:04,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919262247] [2022-03-20 07:32:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:04,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:04,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:04,119 INFO L87 Difference]: Start difference. First operand 205 states and 319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:06,132 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 07:32:06,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:06,546 INFO L93 Difference]: Finished difference Result 309 states and 476 transitions. [2022-03-20 07:32:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:06,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 07:32:06,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:06,548 INFO L225 Difference]: With dead ends: 309 [2022-03-20 07:32:06,548 INFO L226 Difference]: Without dead ends: 309 [2022-03-20 07:32:06,548 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 07:32:06,548 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 142 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:06,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-20 07:32:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 206. [2022-03-20 07:32:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5621890547263682) internal successors, (314), 201 states have internal predecessors, (314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:06,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 318 transitions. [2022-03-20 07:32:06,556 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 318 transitions. Word has length 70 [2022-03-20 07:32:06,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:06,557 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 318 transitions. [2022-03-20 07:32:06,557 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:06,557 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 318 transitions. [2022-03-20 07:32:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 07:32:06,557 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:06,558 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, 1, 1, 1, 1, 1] [2022-03-20 07:32:06,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:32:06,558 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:06,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:06,558 INFO L85 PathProgramCache]: Analyzing trace with hash -11530602, now seen corresponding path program 1 times [2022-03-20 07:32:06,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:06,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960126948] [2022-03-20 07:32:06,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:06,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:06,679 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 07:32:06,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:06,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960126948] [2022-03-20 07:32:06,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960126948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:06,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:06,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:06,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847623773] [2022-03-20 07:32:06,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:06,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:06,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:06,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:06,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:06,682 INFO L87 Difference]: Start difference. First operand 206 states and 318 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:08,691 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 07:32:09,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:09,080 INFO L93 Difference]: Finished difference Result 219 states and 334 transitions. [2022-03-20 07:32:09,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:09,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-03-20 07:32:09,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:09,082 INFO L225 Difference]: With dead ends: 219 [2022-03-20 07:32:09,082 INFO L226 Difference]: Without dead ends: 219 [2022-03-20 07:32:09,082 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 07:32:09,082 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:09,083 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:09,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-20 07:32:09,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 206. [2022-03-20 07:32:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5572139303482586) internal successors, (313), 201 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2022-03-20 07:32:09,087 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 71 [2022-03-20 07:32:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:09,087 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2022-03-20 07:32:09,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2022-03-20 07:32:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 07:32:09,088 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:09,088 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:09,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:32:09,088 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:09,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash -618559600, now seen corresponding path program 1 times [2022-03-20 07:32:09,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:09,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886260733] [2022-03-20 07:32:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:09,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:09,206 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 07:32:09,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:09,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886260733] [2022-03-20 07:32:09,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886260733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:09,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:09,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:09,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770830129] [2022-03-20 07:32:09,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:09,208 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:09,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:09,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:09,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:09,209 INFO L87 Difference]: Start difference. First operand 206 states and 317 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:11,224 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 07:32:11,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:11,658 INFO L93 Difference]: Finished difference Result 249 states and 380 transitions. [2022-03-20 07:32:11,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:11,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-03-20 07:32:11,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:11,659 INFO L225 Difference]: With dead ends: 249 [2022-03-20 07:32:11,659 INFO L226 Difference]: Without dead ends: 249 [2022-03-20 07:32:11,659 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 07:32:11,660 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:11,660 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-03-20 07:32:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 228. [2022-03-20 07:32:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5650224215246638) internal successors, (349), 223 states have internal predecessors, (349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions. [2022-03-20 07:32:11,664 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 71 [2022-03-20 07:32:11,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:11,664 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 353 transitions. [2022-03-20 07:32:11,664 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions. [2022-03-20 07:32:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-03-20 07:32:11,665 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:11,665 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, 1, 1, 1, 1, 1] [2022-03-20 07:32:11,665 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:32:11,665 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:11,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:11,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1019782777, now seen corresponding path program 1 times [2022-03-20 07:32:11,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:11,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779902598] [2022-03-20 07:32:11,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:11,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:11,746 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 07:32:11,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:11,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779902598] [2022-03-20 07:32:11,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779902598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:11,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:11,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:11,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555492893] [2022-03-20 07:32:11,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:11,747 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:11,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:11,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:11,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:11,748 INFO L87 Difference]: Start difference. First operand 228 states and 353 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:13,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:15,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:17,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:19,493 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 07:32:19,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:19,902 INFO L93 Difference]: Finished difference Result 331 states and 507 transitions. [2022-03-20 07:32:19,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:19,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2022-03-20 07:32:19,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:19,904 INFO L225 Difference]: With dead ends: 331 [2022-03-20 07:32:19,904 INFO L226 Difference]: Without dead ends: 331 [2022-03-20 07:32:19,904 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 07:32:19,904 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 139 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:19,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 323 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-20 07:32:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-03-20 07:32:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 230. [2022-03-20 07:32:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.551111111111111) internal successors, (349), 225 states have internal predecessors, (349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:19,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 353 transitions. [2022-03-20 07:32:19,926 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 353 transitions. Word has length 72 [2022-03-20 07:32:19,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:19,926 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 353 transitions. [2022-03-20 07:32:19,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:19,926 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 353 transitions. [2022-03-20 07:32:19,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 07:32:19,926 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:19,927 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:19,927 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:32:19,928 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:19,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:19,929 INFO L85 PathProgramCache]: Analyzing trace with hash -913771294, now seen corresponding path program 1 times [2022-03-20 07:32:19,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:19,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557516843] [2022-03-20 07:32:19,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:19,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:20,017 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:20,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:20,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557516843] [2022-03-20 07:32:20,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557516843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:20,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:20,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:20,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461941041] [2022-03-20 07:32:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:20,017 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:20,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:20,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:20,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:20,018 INFO L87 Difference]: Start difference. First operand 230 states and 353 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:22,025 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 07:32:22,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:22,438 INFO L93 Difference]: Finished difference Result 374 states and 581 transitions. [2022-03-20 07:32:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:22,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 07:32:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:22,445 INFO L225 Difference]: With dead ends: 374 [2022-03-20 07:32:22,445 INFO L226 Difference]: Without dead ends: 374 [2022-03-20 07:32:22,445 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 07:32:22,445 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 138 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:22,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 323 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:22,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-20 07:32:22,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 247. [2022-03-20 07:32:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.537190082644628) internal successors, (372), 242 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 376 transitions. [2022-03-20 07:32:22,450 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 376 transitions. Word has length 84 [2022-03-20 07:32:22,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:22,450 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 376 transitions. [2022-03-20 07:32:22,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 376 transitions. [2022-03-20 07:32:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 07:32:22,451 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:22,451 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:22,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:32:22,451 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:22,452 INFO L85 PathProgramCache]: Analyzing trace with hash -881613718, now seen corresponding path program 1 times [2022-03-20 07:32:22,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:22,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957338865] [2022-03-20 07:32:22,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:22,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:22,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:22,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957338865] [2022-03-20 07:32:22,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957338865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:22,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:22,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:22,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917920887] [2022-03-20 07:32:22,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:22,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:22,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:22,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:22,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:22,544 INFO L87 Difference]: Start difference. First operand 247 states and 376 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:24,555 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 07:32:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:25,072 INFO L93 Difference]: Finished difference Result 347 states and 525 transitions. [2022-03-20 07:32:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:25,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 07:32:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:25,074 INFO L225 Difference]: With dead ends: 347 [2022-03-20 07:32:25,074 INFO L226 Difference]: Without dead ends: 347 [2022-03-20 07:32:25,074 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 07:32:25,074 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:25,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:32:25,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-03-20 07:32:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 248. [2022-03-20 07:32:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5267489711934157) internal successors, (371), 243 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 375 transitions. [2022-03-20 07:32:25,078 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 375 transitions. Word has length 85 [2022-03-20 07:32:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:25,079 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 375 transitions. [2022-03-20 07:32:25,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 375 transitions. [2022-03-20 07:32:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 07:32:25,082 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:25,082 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:25,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:32:25,082 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:25,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash -344211893, now seen corresponding path program 1 times [2022-03-20 07:32:25,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:25,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913603241] [2022-03-20 07:32:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:25,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:25,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:25,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913603241] [2022-03-20 07:32:25,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913603241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:25,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:25,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:25,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842485245] [2022-03-20 07:32:25,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:25,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:25,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:25,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:25,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:25,174 INFO L87 Difference]: Start difference. First operand 248 states and 375 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:27,181 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 07:32:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:27,498 INFO L93 Difference]: Finished difference Result 266 states and 398 transitions. [2022-03-20 07:32:27,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:27,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 07:32:27,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:27,499 INFO L225 Difference]: With dead ends: 266 [2022-03-20 07:32:27,500 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 07:32:27,500 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 07:32:27,500 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:27,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 07:32:27,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 248. [2022-03-20 07:32:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.522633744855967) internal successors, (370), 243 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 374 transitions. [2022-03-20 07:32:27,504 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 374 transitions. Word has length 85 [2022-03-20 07:32:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:27,504 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 374 transitions. [2022-03-20 07:32:27,504 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:27,504 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 374 transitions. [2022-03-20 07:32:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 07:32:27,505 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:27,505 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:27,505 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:32:27,505 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:27,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:27,505 INFO L85 PathProgramCache]: Analyzing trace with hash 382441214, now seen corresponding path program 1 times [2022-03-20 07:32:27,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:27,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339907453] [2022-03-20 07:32:27,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:27,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 07:32:27,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:27,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339907453] [2022-03-20 07:32:27,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339907453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:27,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:27,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:27,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734795301] [2022-03-20 07:32:27,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:27,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:27,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:27,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:27,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:27,600 INFO L87 Difference]: Start difference. First operand 248 states and 374 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:29,615 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 07:32:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:29,986 INFO L93 Difference]: Finished difference Result 261 states and 389 transitions. [2022-03-20 07:32:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-20 07:32:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:29,988 INFO L225 Difference]: With dead ends: 261 [2022-03-20 07:32:29,988 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 07:32:29,989 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 07:32:29,990 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 19 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:29,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 547 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:29,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 07:32:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 248. [2022-03-20 07:32:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5185185185185186) internal successors, (369), 243 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 373 transitions. [2022-03-20 07:32:29,994 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 373 transitions. Word has length 86 [2022-03-20 07:32:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:29,995 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 373 transitions. [2022-03-20 07:32:29,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 373 transitions. [2022-03-20 07:32:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:32:29,996 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:29,996 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:29,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:32:29,996 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:29,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:29,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1995759549, now seen corresponding path program 1 times [2022-03-20 07:32:29,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:29,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295002487] [2022-03-20 07:32:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:30,098 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 07:32:30,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:30,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295002487] [2022-03-20 07:32:30,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295002487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:30,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:30,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:32:30,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854682153] [2022-03-20 07:32:30,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:30,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:32:30,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:30,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:32:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:30,100 INFO L87 Difference]: Start difference. First operand 248 states and 373 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 07:32:32,115 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 07:32:32,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:32,451 INFO L93 Difference]: Finished difference Result 257 states and 384 transitions. [2022-03-20 07:32:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 07:32:32,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 87 [2022-03-20 07:32:32,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:32,452 INFO L225 Difference]: With dead ends: 257 [2022-03-20 07:32:32,452 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 07:32:32,452 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 07:32:32,452 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:32,453 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 07:32:32,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-03-20 07:32:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.507936507936508) internal successors, (380), 252 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 384 transitions. [2022-03-20 07:32:32,456 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 384 transitions. Word has length 87 [2022-03-20 07:32:32,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:32,456 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 384 transitions. [2022-03-20 07:32:32,457 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 07:32:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 384 transitions. [2022-03-20 07:32:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-20 07:32:32,457 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:32,457 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:32,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:32:32,458 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:32,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:32,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1310252391, now seen corresponding path program 1 times [2022-03-20 07:32:32,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:32,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560480012] [2022-03-20 07:32:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:32,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:32,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:32,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:32,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560480012] [2022-03-20 07:32:32,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560480012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:32,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:32,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:32,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854582091] [2022-03-20 07:32:32,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:32,551 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:32,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:32,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:32,552 INFO L87 Difference]: Start difference. First operand 257 states and 384 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:34,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:36,487 WARN L534 Checker$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 07:32:38,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:40,531 WARN L534 Checker$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 07:32:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:40,868 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2022-03-20 07:32:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:40,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-20 07:32:40,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:40,869 INFO L225 Difference]: With dead ends: 274 [2022-03-20 07:32:40,869 INFO L226 Difference]: Without dead ends: 274 [2022-03-20 07:32:40,869 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:40,870 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:40,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 490 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-20 07:32:40,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-20 07:32:40,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2022-03-20 07:32:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.503968253968254) internal successors, (379), 252 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 383 transitions. [2022-03-20 07:32:40,873 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 383 transitions. Word has length 89 [2022-03-20 07:32:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:40,874 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 383 transitions. [2022-03-20 07:32:40,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 383 transitions. [2022-03-20 07:32:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-20 07:32:40,874 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:40,874 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:40,874 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:32:40,875 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:40,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash 500536592, now seen corresponding path program 1 times [2022-03-20 07:32:40,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:40,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237869456] [2022-03-20 07:32:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:40,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:40,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:32:40,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:40,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237869456] [2022-03-20 07:32:40,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237869456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:40,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:40,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:40,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802706592] [2022-03-20 07:32:40,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:40,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:40,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:40,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:40,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:40,978 INFO L87 Difference]: Start difference. First operand 257 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:42,988 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 07:32:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:43,414 INFO L93 Difference]: Finished difference Result 365 states and 543 transitions. [2022-03-20 07:32:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:43,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-20 07:32:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:43,415 INFO L225 Difference]: With dead ends: 365 [2022-03-20 07:32:43,415 INFO L226 Difference]: Without dead ends: 363 [2022-03-20 07:32:43,415 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 07:32:43,416 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 110 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:43,416 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 337 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-03-20 07:32:43,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 282. [2022-03-20 07:32:43,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5451263537906137) internal successors, (428), 277 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 07:32:43,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2022-03-20 07:32:43,420 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 93 [2022-03-20 07:32:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:43,420 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2022-03-20 07:32:43,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:43,420 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2022-03-20 07:32:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 07:32:43,421 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:43,421 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:43,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:32:43,421 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:43,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:43,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2143278373, now seen corresponding path program 1 times [2022-03-20 07:32:43,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:43,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803125142] [2022-03-20 07:32:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:43,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:43,547 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 07:32:43,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:43,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803125142] [2022-03-20 07:32:43,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803125142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:43,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:43,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:43,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68510945] [2022-03-20 07:32:43,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:43,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:43,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:43,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:43,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:43,548 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:45,558 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 07:32:45,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:45,976 INFO L93 Difference]: Finished difference Result 383 states and 581 transitions. [2022-03-20 07:32:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:45,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 07:32:45,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:45,978 INFO L225 Difference]: With dead ends: 383 [2022-03-20 07:32:45,978 INFO L226 Difference]: Without dead ends: 383 [2022-03-20 07:32:45,978 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 07:32:45,979 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 82 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:45,979 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 482 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:45,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-20 07:32:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 316. [2022-03-20 07:32:45,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 311 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 487 transitions. [2022-03-20 07:32:45,984 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 487 transitions. Word has length 122 [2022-03-20 07:32:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:45,984 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 487 transitions. [2022-03-20 07:32:45,984 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:45,984 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 487 transitions. [2022-03-20 07:32:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 07:32:45,985 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:45,985 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:45,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:32:45,985 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1708077500, now seen corresponding path program 1 times [2022-03-20 07:32:45,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:45,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228642780] [2022-03-20 07:32:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:46,120 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 07:32:46,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:46,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228642780] [2022-03-20 07:32:46,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228642780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:46,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:46,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922516197] [2022-03-20 07:32:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:46,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:46,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:46,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:46,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:46,122 INFO L87 Difference]: Start difference. First operand 316 states and 487 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:48,130 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 07:32:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:48,558 INFO L93 Difference]: Finished difference Result 435 states and 661 transitions. [2022-03-20 07:32:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:48,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 07:32:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:48,560 INFO L225 Difference]: With dead ends: 435 [2022-03-20 07:32:48,560 INFO L226 Difference]: Without dead ends: 435 [2022-03-20 07:32:48,560 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 07:32:48,562 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:48,562 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 353 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:48,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-20 07:32:48,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 314. [2022-03-20 07:32:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 309 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 484 transitions. [2022-03-20 07:32:48,573 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 484 transitions. Word has length 122 [2022-03-20 07:32:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:48,573 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 484 transitions. [2022-03-20 07:32:48,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 484 transitions. [2022-03-20 07:32:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-20 07:32:48,574 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:48,574 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:48,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:32:48,574 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:48,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:48,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1257864063, now seen corresponding path program 1 times [2022-03-20 07:32:48,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:48,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346641985] [2022-03-20 07:32:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:48,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 07:32:48,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:48,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346641985] [2022-03-20 07:32:48,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346641985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:48,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:48,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:48,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079112923] [2022-03-20 07:32:48,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:48,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:48,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:48,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:48,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:48,721 INFO L87 Difference]: Start difference. First operand 314 states and 484 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 07:32:50,735 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 07:32:51,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:51,059 INFO L93 Difference]: Finished difference Result 385 states and 575 transitions. [2022-03-20 07:32:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:51,060 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 128 [2022-03-20 07:32:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:51,061 INFO L225 Difference]: With dead ends: 385 [2022-03-20 07:32:51,061 INFO L226 Difference]: Without dead ends: 385 [2022-03-20 07:32:51,061 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 07:32:51,071 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 140 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:51,071 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:51,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-03-20 07:32:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 314. [2022-03-20 07:32:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5372168284789645) internal successors, (475), 309 states have internal predecessors, (475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 479 transitions. [2022-03-20 07:32:51,076 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 479 transitions. Word has length 128 [2022-03-20 07:32:51,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:51,076 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 479 transitions. [2022-03-20 07:32:51,076 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 07:32:51,076 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 479 transitions. [2022-03-20 07:32:51,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 07:32:51,077 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:51,077 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:51,077 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:32:51,077 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:51,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:51,078 INFO L85 PathProgramCache]: Analyzing trace with hash -365757816, now seen corresponding path program 1 times [2022-03-20 07:32:51,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:51,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979435658] [2022-03-20 07:32:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:51,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:51,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:32:51,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:51,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979435658] [2022-03-20 07:32:51,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979435658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:51,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:51,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:32:51,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33075521] [2022-03-20 07:32:51,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:51,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:32:51,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:32:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:32:51,191 INFO L87 Difference]: Start difference. First operand 314 states and 479 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:53,203 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 07:32:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:53,546 INFO L93 Difference]: Finished difference Result 597 states and 917 transitions. [2022-03-20 07:32:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:32:53,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 07:32:53,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:53,561 INFO L225 Difference]: With dead ends: 597 [2022-03-20 07:32:53,561 INFO L226 Difference]: Without dead ends: 597 [2022-03-20 07:32:53,562 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 07:32:53,563 INFO L913 BasicCegarLoop]: 370 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:53,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 565 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-20 07:32:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-03-20 07:32:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 592 states have (on average 1.5422297297297298) internal successors, (913), 592 states have internal predecessors, (913), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 917 transitions. [2022-03-20 07:32:53,580 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 917 transitions. Word has length 133 [2022-03-20 07:32:53,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:53,581 INFO L478 AbstractCegarLoop]: Abstraction has 597 states and 917 transitions. [2022-03-20 07:32:53,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 917 transitions. [2022-03-20 07:32:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 07:32:53,582 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:53,582 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:53,582 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:32:53,582 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:53,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:53,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2066498295, now seen corresponding path program 1 times [2022-03-20 07:32:53,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:53,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204601505] [2022-03-20 07:32:53,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:53,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:53,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:32:53,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:53,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204601505] [2022-03-20 07:32:53,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204601505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:53,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:53,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:32:53,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319343097] [2022-03-20 07:32:53,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:53,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:32:53,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:53,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:32:53,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:32:53,727 INFO L87 Difference]: Start difference. First operand 597 states and 917 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 07:32:55,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:55,986 INFO L93 Difference]: Finished difference Result 838 states and 1284 transitions. [2022-03-20 07:32:55,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:32:55,987 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 133 [2022-03-20 07:32:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:55,989 INFO L225 Difference]: With dead ends: 838 [2022-03-20 07:32:55,989 INFO L226 Difference]: Without dead ends: 838 [2022-03-20 07:32:55,990 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 07:32:55,990 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 138 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:55,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 438 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 07:32:55,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-03-20 07:32:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-03-20 07:32:55,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 833 states have (on average 1.5366146458583434) internal successors, (1280), 833 states have internal predecessors, (1280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1284 transitions. [2022-03-20 07:32:56,000 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1284 transitions. Word has length 133 [2022-03-20 07:32:56,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:56,000 INFO L478 AbstractCegarLoop]: Abstraction has 838 states and 1284 transitions. [2022-03-20 07:32:56,000 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 07:32:56,000 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1284 transitions. [2022-03-20 07:32:56,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 07:32:56,002 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:56,002 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:56,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:32:56,002 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:56,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:56,002 INFO L85 PathProgramCache]: Analyzing trace with hash -212152758, now seen corresponding path program 1 times [2022-03-20 07:32:56,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:56,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813429099] [2022-03-20 07:32:56,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:56,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-20 07:32:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813429099] [2022-03-20 07:32:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813429099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:56,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:56,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:32:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334255519] [2022-03-20 07:32:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:56,076 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:32:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:32:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:32:56,076 INFO L87 Difference]: Start difference. First operand 838 states and 1284 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:58,083 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 07:32:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:58,355 INFO L93 Difference]: Finished difference Result 865 states and 1319 transitions. [2022-03-20 07:32:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:32:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 07:32:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:58,357 INFO L225 Difference]: With dead ends: 865 [2022-03-20 07:32:58,357 INFO L226 Difference]: Without dead ends: 865 [2022-03-20 07:32:58,357 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 07:32:58,358 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:58,359 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-03-20 07:32:58,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-03-20 07:32:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 860 states have (on average 1.5290697674418605) internal successors, (1315), 860 states have internal predecessors, (1315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1319 transitions. [2022-03-20 07:32:58,397 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1319 transitions. Word has length 133 [2022-03-20 07:32:58,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:58,397 INFO L478 AbstractCegarLoop]: Abstraction has 865 states and 1319 transitions. [2022-03-20 07:32:58,397 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:58,397 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1319 transitions. [2022-03-20 07:32:58,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 07:32:58,399 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:58,399 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:58,399 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:32:58,399 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:58,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:58,399 INFO L85 PathProgramCache]: Analyzing trace with hash 864400651, now seen corresponding path program 1 times [2022-03-20 07:32:58,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:58,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321334294] [2022-03-20 07:32:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:58,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:58,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 07:32:58,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:58,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321334294] [2022-03-20 07:32:58,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321334294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:58,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:58,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:32:58,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087698675] [2022-03-20 07:32:58,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:58,533 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:32:58,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:58,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:32:58,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:32:58,534 INFO L87 Difference]: Start difference. First operand 865 states and 1319 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:00,548 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 07:33:00,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:00,794 INFO L93 Difference]: Finished difference Result 867 states and 1321 transitions. [2022-03-20 07:33:00,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:33:00,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 07:33:00,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:00,801 INFO L225 Difference]: With dead ends: 867 [2022-03-20 07:33:00,801 INFO L226 Difference]: Without dead ends: 867 [2022-03-20 07:33:00,801 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 07:33:00,801 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:00,801 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:33:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-03-20 07:33:00,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-03-20 07:33:00,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5278422273781902) internal successors, (1317), 862 states have internal predecessors, (1317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1321 transitions. [2022-03-20 07:33:00,810 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1321 transitions. Word has length 133 [2022-03-20 07:33:00,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:00,810 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1321 transitions. [2022-03-20 07:33:00,810 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:00,810 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1321 transitions. [2022-03-20 07:33:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-20 07:33:00,812 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:00,812 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:00,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:33:00,812 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:00,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:00,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1563265549, now seen corresponding path program 1 times [2022-03-20 07:33:00,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:00,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984189421] [2022-03-20 07:33:00,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:00,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 07:33:00,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:00,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984189421] [2022-03-20 07:33:00,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984189421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:00,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:00,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:00,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071542038] [2022-03-20 07:33:00,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:00,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:00,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:00,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:00,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:00,968 INFO L87 Difference]: Start difference. First operand 867 states and 1321 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:02,983 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 07:33:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:03,316 INFO L93 Difference]: Finished difference Result 1296 states and 1961 transitions. [2022-03-20 07:33:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-20 07:33:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:03,320 INFO L225 Difference]: With dead ends: 1296 [2022-03-20 07:33:03,320 INFO L226 Difference]: Without dead ends: 1296 [2022-03-20 07:33:03,320 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 07:33:03,321 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 110 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:03,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 325 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:33:03,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-03-20 07:33:03,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1083. [2022-03-20 07:33:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5510204081632653) internal successors, (1672), 1078 states have internal predecessors, (1672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1676 transitions. [2022-03-20 07:33:03,335 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1676 transitions. Word has length 213 [2022-03-20 07:33:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:03,335 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1676 transitions. [2022-03-20 07:33:03,335 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1676 transitions. [2022-03-20 07:33:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-20 07:33:03,337 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:03,337 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:03,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:33:03,337 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:03,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:03,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1764133390, now seen corresponding path program 1 times [2022-03-20 07:33:03,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:03,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945472364] [2022-03-20 07:33:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:03,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:03,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 07:33:03,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:03,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945472364] [2022-03-20 07:33:03,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945472364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:03,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:03,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:03,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894672705] [2022-03-20 07:33:03,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:03,443 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:03,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:03,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:03,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:03,444 INFO L87 Difference]: Start difference. First operand 1083 states and 1676 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:05,463 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 07:33:05,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:05,946 INFO L93 Difference]: Finished difference Result 1182 states and 1801 transitions. [2022-03-20 07:33:05,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:05,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-03-20 07:33:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:05,949 INFO L225 Difference]: With dead ends: 1182 [2022-03-20 07:33:05,949 INFO L226 Difference]: Without dead ends: 1182 [2022-03-20 07:33:05,949 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 07:33:05,950 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 75 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:05,950 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 625 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:33:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-03-20 07:33:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1083. [2022-03-20 07:33:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.549165120593692) internal successors, (1670), 1078 states have internal predecessors, (1670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:05,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1674 transitions. [2022-03-20 07:33:05,960 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1674 transitions. Word has length 214 [2022-03-20 07:33:05,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:05,961 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1674 transitions. [2022-03-20 07:33:05,961 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1674 transitions. [2022-03-20 07:33:05,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-20 07:33:05,963 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:05,963 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:05,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:33:05,963 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:05,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:05,963 INFO L85 PathProgramCache]: Analyzing trace with hash -594230739, now seen corresponding path program 1 times [2022-03-20 07:33:05,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:05,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996839628] [2022-03-20 07:33:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:05,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:06,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:06,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996839628] [2022-03-20 07:33:06,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996839628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:06,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:06,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:06,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529927670] [2022-03-20 07:33:06,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:06,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:06,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:06,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:06,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:06,078 INFO L87 Difference]: Start difference. First operand 1083 states and 1674 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:08,087 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 07:33:08,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:08,576 INFO L93 Difference]: Finished difference Result 1180 states and 1797 transitions. [2022-03-20 07:33:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:08,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-03-20 07:33:08,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:08,579 INFO L225 Difference]: With dead ends: 1180 [2022-03-20 07:33:08,579 INFO L226 Difference]: Without dead ends: 1180 [2022-03-20 07:33:08,579 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 07:33:08,580 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 96 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:08,580 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 623 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 589 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:33:08,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-03-20 07:33:08,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1083. [2022-03-20 07:33:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5473098330241188) internal successors, (1668), 1078 states have internal predecessors, (1668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1672 transitions. [2022-03-20 07:33:08,590 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1672 transitions. Word has length 228 [2022-03-20 07:33:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:08,590 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1672 transitions. [2022-03-20 07:33:08,591 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1672 transitions. [2022-03-20 07:33:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-03-20 07:33:08,592 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:08,592 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:08,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:33:08,593 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:08,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1637329481, now seen corresponding path program 1 times [2022-03-20 07:33:08,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:08,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351828798] [2022-03-20 07:33:08,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:08,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:08,695 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:08,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:08,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351828798] [2022-03-20 07:33:08,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351828798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:08,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:08,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:08,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175931183] [2022-03-20 07:33:08,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:08,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:08,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:08,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:08,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:08,698 INFO L87 Difference]: Start difference. First operand 1083 states and 1672 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:10,705 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 07:33:11,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:11,158 INFO L93 Difference]: Finished difference Result 1160 states and 1769 transitions. [2022-03-20 07:33:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:11,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 232 [2022-03-20 07:33:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:11,162 INFO L225 Difference]: With dead ends: 1160 [2022-03-20 07:33:11,162 INFO L226 Difference]: Without dead ends: 1160 [2022-03-20 07:33:11,162 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 07:33:11,162 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 92 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:11,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 609 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-03-20 07:33:11,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-03-20 07:33:11,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5454545454545454) internal successors, (1666), 1078 states have internal predecessors, (1666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:11,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1670 transitions. [2022-03-20 07:33:11,176 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1670 transitions. Word has length 232 [2022-03-20 07:33:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:11,177 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1670 transitions. [2022-03-20 07:33:11,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:11,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1670 transitions. [2022-03-20 07:33:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-20 07:33:11,179 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:11,179 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:11,180 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:33:11,180 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:11,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:11,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1788020019, now seen corresponding path program 1 times [2022-03-20 07:33:11,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:11,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007575254] [2022-03-20 07:33:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:11,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:11,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:11,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007575254] [2022-03-20 07:33:11,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007575254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:11,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:11,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:11,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146026700] [2022-03-20 07:33:11,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:11,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:11,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:11,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:11,328 INFO L87 Difference]: Start difference. First operand 1083 states and 1670 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:13,337 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 07:33:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:13,758 INFO L93 Difference]: Finished difference Result 1287 states and 1926 transitions. [2022-03-20 07:33:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-20 07:33:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:13,762 INFO L225 Difference]: With dead ends: 1287 [2022-03-20 07:33:13,762 INFO L226 Difference]: Without dead ends: 1287 [2022-03-20 07:33:13,762 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 07:33:13,762 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 127 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:13,763 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-03-20 07:33:13,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1083. [2022-03-20 07:33:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5324675324675325) internal successors, (1652), 1078 states have internal predecessors, (1652), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1656 transitions. [2022-03-20 07:33:13,782 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1656 transitions. Word has length 236 [2022-03-20 07:33:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:13,782 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1656 transitions. [2022-03-20 07:33:13,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1656 transitions. [2022-03-20 07:33:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-20 07:33:13,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:13,784 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:13,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:33:13,784 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2083420877, now seen corresponding path program 1 times [2022-03-20 07:33:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:13,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796420587] [2022-03-20 07:33:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:13,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:13,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:13,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:13,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796420587] [2022-03-20 07:33:13,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796420587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:13,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:13,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832597945] [2022-03-20 07:33:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:13,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:13,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:13,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:13,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:13,917 INFO L87 Difference]: Start difference. First operand 1083 states and 1656 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:15,925 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 07:33:16,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:16,364 INFO L93 Difference]: Finished difference Result 1160 states and 1753 transitions. [2022-03-20 07:33:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:16,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-20 07:33:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:16,367 INFO L225 Difference]: With dead ends: 1160 [2022-03-20 07:33:16,367 INFO L226 Difference]: Without dead ends: 1160 [2022-03-20 07:33:16,367 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 07:33:16,368 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 80 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:16,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 605 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:16,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-03-20 07:33:16,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-03-20 07:33:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.530612244897959) internal successors, (1650), 1078 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:16,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1654 transitions. [2022-03-20 07:33:16,388 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1654 transitions. Word has length 236 [2022-03-20 07:33:16,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:16,388 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1654 transitions. [2022-03-20 07:33:16,388 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:16,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1654 transitions. [2022-03-20 07:33:16,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-20 07:33:16,391 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:16,391 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:16,391 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:33:16,391 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:16,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:16,392 INFO L85 PathProgramCache]: Analyzing trace with hash 993793841, now seen corresponding path program 1 times [2022-03-20 07:33:16,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:16,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182555150] [2022-03-20 07:33:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:16,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:16,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:16,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182555150] [2022-03-20 07:33:16,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182555150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:16,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:16,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:16,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104411514] [2022-03-20 07:33:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:16,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:16,511 INFO L87 Difference]: Start difference. First operand 1083 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:18,519 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 07:33:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:18,983 INFO L93 Difference]: Finished difference Result 1150 states and 1737 transitions. [2022-03-20 07:33:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:18,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-03-20 07:33:18,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:18,986 INFO L225 Difference]: With dead ends: 1150 [2022-03-20 07:33:18,986 INFO L226 Difference]: Without dead ends: 1150 [2022-03-20 07:33:18,986 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 07:33:18,987 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 76 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:18,987 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 597 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:33:18,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-03-20 07:33:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1083. [2022-03-20 07:33:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.528756957328386) internal successors, (1648), 1078 states have internal predecessors, (1648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1652 transitions. [2022-03-20 07:33:18,997 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1652 transitions. Word has length 237 [2022-03-20 07:33:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:18,997 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1652 transitions. [2022-03-20 07:33:18,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1652 transitions. [2022-03-20 07:33:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-20 07:33:18,999 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:18,999 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:18,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:33:18,999 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash 724224944, now seen corresponding path program 1 times [2022-03-20 07:33:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:18,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12718766] [2022-03-20 07:33:19,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:19,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:19,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:19,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:19,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12718766] [2022-03-20 07:33:19,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12718766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:19,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:19,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652233439] [2022-03-20 07:33:19,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:19,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:19,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:19,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:19,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:19,116 INFO L87 Difference]: Start difference. First operand 1083 states and 1652 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:21,124 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 07:33:21,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:21,549 INFO L93 Difference]: Finished difference Result 1142 states and 1725 transitions. [2022-03-20 07:33:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:21,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-03-20 07:33:21,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:21,552 INFO L225 Difference]: With dead ends: 1142 [2022-03-20 07:33:21,552 INFO L226 Difference]: Without dead ends: 1142 [2022-03-20 07:33:21,552 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 07:33:21,553 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 69 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:21,553 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 589 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-20 07:33:21,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-03-20 07:33:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5269016697588127) internal successors, (1646), 1078 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1650 transitions. [2022-03-20 07:33:21,562 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1650 transitions. Word has length 237 [2022-03-20 07:33:21,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:21,562 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1650 transitions. [2022-03-20 07:33:21,562 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:21,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1650 transitions. [2022-03-20 07:33:21,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-20 07:33:21,576 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:21,576 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:21,577 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:33:21,577 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:21,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:21,577 INFO L85 PathProgramCache]: Analyzing trace with hash 799309157, now seen corresponding path program 1 times [2022-03-20 07:33:21,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:21,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114106650] [2022-03-20 07:33:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:21,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:21,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:21,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:21,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114106650] [2022-03-20 07:33:21,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114106650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:21,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:21,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:21,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505310143] [2022-03-20 07:33:21,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:21,688 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:21,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:21,688 INFO L87 Difference]: Start difference. First operand 1083 states and 1650 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:23,696 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 07:33:24,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:24,167 INFO L93 Difference]: Finished difference Result 1142 states and 1723 transitions. [2022-03-20 07:33:24,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:24,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-20 07:33:24,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:24,170 INFO L225 Difference]: With dead ends: 1142 [2022-03-20 07:33:24,170 INFO L226 Difference]: Without dead ends: 1142 [2022-03-20 07:33:24,171 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 07:33:24,171 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 65 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:24,176 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 587 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:33:24,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-20 07:33:24,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-03-20 07:33:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5250463821892393) internal successors, (1644), 1078 states have internal predecessors, (1644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1648 transitions. [2022-03-20 07:33:24,196 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1648 transitions. Word has length 239 [2022-03-20 07:33:24,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:24,196 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1648 transitions. [2022-03-20 07:33:24,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1648 transitions. [2022-03-20 07:33:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 07:33:24,198 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:24,199 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:24,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:33:24,199 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:24,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:24,199 INFO L85 PathProgramCache]: Analyzing trace with hash 858623079, now seen corresponding path program 1 times [2022-03-20 07:33:24,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:24,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252043127] [2022-03-20 07:33:24,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:24,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:24,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:24,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252043127] [2022-03-20 07:33:24,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252043127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:24,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:24,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:24,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648351364] [2022-03-20 07:33:24,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:24,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:24,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:24,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:24,322 INFO L87 Difference]: Start difference. First operand 1083 states and 1648 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:26,330 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 07:33:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:26,737 INFO L93 Difference]: Finished difference Result 1126 states and 1695 transitions. [2022-03-20 07:33:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:26,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-20 07:33:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:26,740 INFO L225 Difference]: With dead ends: 1126 [2022-03-20 07:33:26,740 INFO L226 Difference]: Without dead ends: 1126 [2022-03-20 07:33:26,740 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 07:33:26,741 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 54 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:26,741 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 577 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:26,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-03-20 07:33:26,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1083. [2022-03-20 07:33:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.523191094619666) internal successors, (1642), 1078 states have internal predecessors, (1642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1646 transitions. [2022-03-20 07:33:26,752 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1646 transitions. Word has length 240 [2022-03-20 07:33:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:26,752 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1646 transitions. [2022-03-20 07:33:26,752 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:26,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1646 transitions. [2022-03-20 07:33:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-20 07:33:26,756 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:26,757 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:26,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:33:26,757 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1164096122, now seen corresponding path program 1 times [2022-03-20 07:33:26,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:26,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038983308] [2022-03-20 07:33:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:26,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:26,876 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:26,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:26,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038983308] [2022-03-20 07:33:26,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038983308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:26,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:26,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:26,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116235966] [2022-03-20 07:33:26,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:26,877 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:26,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:26,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:26,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:26,878 INFO L87 Difference]: Start difference. First operand 1083 states and 1646 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:28,886 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 07:33:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:29,331 INFO L93 Difference]: Finished difference Result 1413 states and 2109 transitions. [2022-03-20 07:33:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-20 07:33:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:29,335 INFO L225 Difference]: With dead ends: 1413 [2022-03-20 07:33:29,335 INFO L226 Difference]: Without dead ends: 1413 [2022-03-20 07:33:29,335 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 07:33:29,336 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 119 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:29,336 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 325 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:29,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-03-20 07:33:29,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1173. [2022-03-20 07:33:29,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5171232876712328) internal successors, (1772), 1168 states have internal predecessors, (1772), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:29,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1776 transitions. [2022-03-20 07:33:29,346 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1776 transitions. Word has length 241 [2022-03-20 07:33:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:29,346 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1776 transitions. [2022-03-20 07:33:29,346 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:29,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1776 transitions. [2022-03-20 07:33:29,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-20 07:33:29,348 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:29,348 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:29,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:33:29,349 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:29,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:29,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2061310594, now seen corresponding path program 1 times [2022-03-20 07:33:29,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:29,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497896153] [2022-03-20 07:33:29,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:29,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:29,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:29,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:29,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497896153] [2022-03-20 07:33:29,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497896153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:29,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:29,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:29,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352820769] [2022-03-20 07:33:29,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:29,457 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:29,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:29,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:29,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:29,458 INFO L87 Difference]: Start difference. First operand 1173 states and 1776 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:31,471 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 07:33:31,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:31,909 INFO L93 Difference]: Finished difference Result 1216 states and 1823 transitions. [2022-03-20 07:33:31,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:31,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-03-20 07:33:31,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:31,912 INFO L225 Difference]: With dead ends: 1216 [2022-03-20 07:33:31,912 INFO L226 Difference]: Without dead ends: 1216 [2022-03-20 07:33:31,912 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 07:33:31,913 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 55 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:31,913 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 573 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:31,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-03-20 07:33:31,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1173. [2022-03-20 07:33:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5154109589041096) internal successors, (1770), 1168 states have internal predecessors, (1770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:31,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1774 transitions. [2022-03-20 07:33:31,923 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1774 transitions. Word has length 242 [2022-03-20 07:33:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:31,923 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1774 transitions. [2022-03-20 07:33:31,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1774 transitions. [2022-03-20 07:33:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-20 07:33:31,925 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:31,925 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:31,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 07:33:31,925 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:31,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:31,926 INFO L85 PathProgramCache]: Analyzing trace with hash -691949702, now seen corresponding path program 1 times [2022-03-20 07:33:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:31,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712888740] [2022-03-20 07:33:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:32,036 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:32,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:32,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712888740] [2022-03-20 07:33:32,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712888740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:32,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:32,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:32,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138899853] [2022-03-20 07:33:32,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:32,036 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:32,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:32,037 INFO L87 Difference]: Start difference. First operand 1173 states and 1774 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:34,051 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 07:33:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:34,412 INFO L93 Difference]: Finished difference Result 1212 states and 1817 transitions. [2022-03-20 07:33:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:34,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-03-20 07:33:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:34,415 INFO L225 Difference]: With dead ends: 1212 [2022-03-20 07:33:34,415 INFO L226 Difference]: Without dead ends: 1212 [2022-03-20 07:33:34,416 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 07:33:34,416 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 48 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:34,416 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 569 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-03-20 07:33:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1173. [2022-03-20 07:33:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5136986301369864) internal successors, (1768), 1168 states have internal predecessors, (1768), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1772 transitions. [2022-03-20 07:33:34,425 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1772 transitions. Word has length 242 [2022-03-20 07:33:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:34,425 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1772 transitions. [2022-03-20 07:33:34,425 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1772 transitions. [2022-03-20 07:33:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-20 07:33:34,427 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:34,427 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:34,427 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 07:33:34,427 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:34,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:34,427 INFO L85 PathProgramCache]: Analyzing trace with hash 273964732, now seen corresponding path program 1 times [2022-03-20 07:33:34,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:34,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398046195] [2022-03-20 07:33:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:34,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:34,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398046195] [2022-03-20 07:33:34,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398046195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:34,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:34,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:34,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872437446] [2022-03-20 07:33:34,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:34,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:34,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:34,557 INFO L87 Difference]: Start difference. First operand 1173 states and 1772 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:35,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:37,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:39,950 WARN L534 Checker$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 07:33:41,972 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 07:33:42,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:42,343 INFO L93 Difference]: Finished difference Result 1208 states and 1809 transitions. [2022-03-20 07:33:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:42,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 243 [2022-03-20 07:33:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:42,346 INFO L225 Difference]: With dead ends: 1208 [2022-03-20 07:33:42,346 INFO L226 Difference]: Without dead ends: 1208 [2022-03-20 07:33:42,346 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 07:33:42,346 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 50 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:42,347 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 567 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-20 07:33:42,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-03-20 07:33:42,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1173. [2022-03-20 07:33:42,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5119863013698631) internal successors, (1766), 1168 states have internal predecessors, (1766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:42,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1770 transitions. [2022-03-20 07:33:42,356 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1770 transitions. Word has length 243 [2022-03-20 07:33:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:42,356 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1770 transitions. [2022-03-20 07:33:42,356 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1770 transitions. [2022-03-20 07:33:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-20 07:33:42,357 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:42,358 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-20 07:33:42,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 07:33:42,358 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:42,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1984975413, now seen corresponding path program 1 times [2022-03-20 07:33:42,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:42,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674259534] [2022-03-20 07:33:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:42,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:42,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674259534] [2022-03-20 07:33:42,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674259534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:42,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:42,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:42,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832909384] [2022-03-20 07:33:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:42,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:42,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:42,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:42,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:42,493 INFO L87 Difference]: Start difference. First operand 1173 states and 1770 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:44,500 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 07:33:44,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:44,938 INFO L93 Difference]: Finished difference Result 1503 states and 2239 transitions. [2022-03-20 07:33:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:44,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-20 07:33:44,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:44,942 INFO L225 Difference]: With dead ends: 1503 [2022-03-20 07:33:44,942 INFO L226 Difference]: Without dead ends: 1503 [2022-03-20 07:33:44,942 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 07:33:44,942 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 116 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:44,942 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-03-20 07:33:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1272. [2022-03-20 07:33:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.5130228887134964) internal successors, (1917), 1267 states have internal predecessors, (1917), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1921 transitions. [2022-03-20 07:33:44,955 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1921 transitions. Word has length 245 [2022-03-20 07:33:44,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:44,956 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1921 transitions. [2022-03-20 07:33:44,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1921 transitions. [2022-03-20 07:33:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-20 07:33:44,958 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:44,958 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2022-03-20 07:33:44,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 07:33:44,959 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:44,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:44,959 INFO L85 PathProgramCache]: Analyzing trace with hash -443370408, now seen corresponding path program 1 times [2022-03-20 07:33:44,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:44,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606997113] [2022-03-20 07:33:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:44,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:45,063 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:45,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:45,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606997113] [2022-03-20 07:33:45,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606997113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:45,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:45,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:45,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86362841] [2022-03-20 07:33:45,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:45,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:45,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:45,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:45,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:45,066 INFO L87 Difference]: Start difference. First operand 1272 states and 1921 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:47,073 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 07:33:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:47,453 INFO L93 Difference]: Finished difference Result 1299 states and 1948 transitions. [2022-03-20 07:33:47,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:47,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-20 07:33:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:47,456 INFO L225 Difference]: With dead ends: 1299 [2022-03-20 07:33:47,456 INFO L226 Difference]: Without dead ends: 1299 [2022-03-20 07:33:47,456 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 07:33:47,456 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 38 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:47,457 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2022-03-20 07:33:47,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1272. [2022-03-20 07:33:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.511444356748224) internal successors, (1915), 1267 states have internal predecessors, (1915), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1919 transitions. [2022-03-20 07:33:47,470 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1919 transitions. Word has length 246 [2022-03-20 07:33:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:47,470 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1919 transitions. [2022-03-20 07:33:47,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:47,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1919 transitions. [2022-03-20 07:33:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-20 07:33:47,472 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:47,473 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-03-20 07:33:47,473 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 07:33:47,473 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:47,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:47,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1923509620, now seen corresponding path program 1 times [2022-03-20 07:33:47,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:47,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385836086] [2022-03-20 07:33:47,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:47,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:47,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:47,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385836086] [2022-03-20 07:33:47,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385836086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:47,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:47,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:47,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702069638] [2022-03-20 07:33:47,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:47,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:47,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:47,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:47,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:47,624 INFO L87 Difference]: Start difference. First operand 1272 states and 1919 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:49,639 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 07:33:50,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:50,077 INFO L93 Difference]: Finished difference Result 1602 states and 2382 transitions. [2022-03-20 07:33:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:50,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-20 07:33:50,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:50,084 INFO L225 Difference]: With dead ends: 1602 [2022-03-20 07:33:50,084 INFO L226 Difference]: Without dead ends: 1602 [2022-03-20 07:33:50,084 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 07:33:50,084 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:50,085 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:50,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-03-20 07:33:50,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1377. [2022-03-20 07:33:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.510204081632653) internal successors, (2072), 1372 states have internal predecessors, (2072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:50,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2076 transitions. [2022-03-20 07:33:50,101 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2076 transitions. Word has length 246 [2022-03-20 07:33:50,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:50,101 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2076 transitions. [2022-03-20 07:33:50,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:50,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2076 transitions. [2022-03-20 07:33:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-20 07:33:50,103 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:50,103 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-20 07:33:50,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 07:33:50,103 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:50,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:50,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1170471363, now seen corresponding path program 1 times [2022-03-20 07:33:50,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:50,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551685604] [2022-03-20 07:33:50,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:50,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:50,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-20 07:33:50,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:50,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551685604] [2022-03-20 07:33:50,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551685604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:50,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:50,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970060180] [2022-03-20 07:33:50,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:50,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:50,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:50,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:50,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:50,239 INFO L87 Difference]: Start difference. First operand 1377 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:52,248 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 07:33:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:52,617 INFO L93 Difference]: Finished difference Result 1400 states and 2099 transitions. [2022-03-20 07:33:52,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:52,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-20 07:33:52,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:52,619 INFO L225 Difference]: With dead ends: 1400 [2022-03-20 07:33:52,619 INFO L226 Difference]: Without dead ends: 1400 [2022-03-20 07:33:52,619 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 07:33:52,620 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:52,620 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 551 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:52,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2022-03-20 07:33:52,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1377. [2022-03-20 07:33:52,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.5087463556851313) internal successors, (2070), 1372 states have internal predecessors, (2070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:52,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2074 transitions. [2022-03-20 07:33:52,634 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2074 transitions. Word has length 247 [2022-03-20 07:33:52,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:52,635 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2074 transitions. [2022-03-20 07:33:52,635 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:52,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2074 transitions. [2022-03-20 07:33:52,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-20 07:33:52,637 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:52,637 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:52,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 07:33:52,637 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:52,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:52,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1312124425, now seen corresponding path program 1 times [2022-03-20 07:33:52,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:52,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043381647] [2022-03-20 07:33:52,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:52,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:52,768 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 07:33:52,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:52,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043381647] [2022-03-20 07:33:52,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043381647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:52,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:52,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:52,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645247676] [2022-03-20 07:33:52,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:52,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:52,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:52,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:52,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:52,769 INFO L87 Difference]: Start difference. First operand 1377 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:54,783 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 07:33:55,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:55,199 INFO L93 Difference]: Finished difference Result 1707 states and 2534 transitions. [2022-03-20 07:33:55,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:55,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-20 07:33:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:55,202 INFO L225 Difference]: With dead ends: 1707 [2022-03-20 07:33:55,202 INFO L226 Difference]: Without dead ends: 1707 [2022-03-20 07:33:55,202 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 07:33:55,203 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 112 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:55,203 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-03-20 07:33:55,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1488. [2022-03-20 07:33:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5077545515846258) internal successors, (2236), 1483 states have internal predecessors, (2236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2240 transitions. [2022-03-20 07:33:55,215 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2240 transitions. Word has length 247 [2022-03-20 07:33:55,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:55,215 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2240 transitions. [2022-03-20 07:33:55,215 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:55,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2240 transitions. [2022-03-20 07:33:55,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-03-20 07:33:55,217 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:55,217 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:55,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 07:33:55,218 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:55,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:55,218 INFO L85 PathProgramCache]: Analyzing trace with hash -89380643, now seen corresponding path program 1 times [2022-03-20 07:33:55,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:55,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559014816] [2022-03-20 07:33:55,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:55,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:55,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:55,347 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 07:33:55,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:55,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559014816] [2022-03-20 07:33:55,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559014816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:55,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:55,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:55,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164594696] [2022-03-20 07:33:55,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:55,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:55,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:55,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:55,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:55,348 INFO L87 Difference]: Start difference. First operand 1488 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:57,355 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 07:33:57,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:57,704 INFO L93 Difference]: Finished difference Result 1507 states and 2259 transitions. [2022-03-20 07:33:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:57,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-03-20 07:33:57,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:57,706 INFO L225 Difference]: With dead ends: 1507 [2022-03-20 07:33:57,706 INFO L226 Difference]: Without dead ends: 1507 [2022-03-20 07:33:57,706 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 07:33:57,707 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 28 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:57,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 545 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:33:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-03-20 07:33:57,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1488. [2022-03-20 07:33:57,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5064059339177343) internal successors, (2234), 1483 states have internal predecessors, (2234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2238 transitions. [2022-03-20 07:33:57,717 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2238 transitions. Word has length 248 [2022-03-20 07:33:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:57,717 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2238 transitions. [2022-03-20 07:33:57,717 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2238 transitions. [2022-03-20 07:33:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-03-20 07:33:57,719 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:57,719 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 07:33:57,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 07:33:57,719 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:57,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash -869309252, now seen corresponding path program 1 times [2022-03-20 07:33:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129864368] [2022-03-20 07:33:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-20 07:33:57,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:57,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129864368] [2022-03-20 07:33:57,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129864368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:57,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:57,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:57,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545680223] [2022-03-20 07:33:57,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:57,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:57,866 INFO L87 Difference]: Start difference. First operand 1488 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:59,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:00,315 INFO L93 Difference]: Finished difference Result 1818 states and 2673 transitions. [2022-03-20 07:34:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:00,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 253 [2022-03-20 07:34:00,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:00,318 INFO L225 Difference]: With dead ends: 1818 [2022-03-20 07:34:00,318 INFO L226 Difference]: Without dead ends: 1818 [2022-03-20 07:34:00,318 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 07:34:00,319 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:00,319 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 362 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:00,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2022-03-20 07:34:00,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1545. [2022-03-20 07:34:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4837662337662338) internal successors, (2285), 1540 states have internal predecessors, (2285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2289 transitions. [2022-03-20 07:34:00,332 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2289 transitions. Word has length 253 [2022-03-20 07:34:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:00,333 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2289 transitions. [2022-03-20 07:34:00,333 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2289 transitions. [2022-03-20 07:34:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-03-20 07:34:00,335 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:00,335 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:00,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 07:34:00,335 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:00,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:00,335 INFO L85 PathProgramCache]: Analyzing trace with hash -48354360, now seen corresponding path program 1 times [2022-03-20 07:34:00,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:00,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214796213] [2022-03-20 07:34:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:00,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:00,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-20 07:34:00,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:00,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214796213] [2022-03-20 07:34:00,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214796213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:00,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:00,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:00,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322662121] [2022-03-20 07:34:00,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:00,477 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:00,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:00,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:00,477 INFO L87 Difference]: Start difference. First operand 1545 states and 2289 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:02,484 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 07:34:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:02,813 INFO L93 Difference]: Finished difference Result 1564 states and 2308 transitions. [2022-03-20 07:34:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:02,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-03-20 07:34:02,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:02,816 INFO L225 Difference]: With dead ends: 1564 [2022-03-20 07:34:02,816 INFO L226 Difference]: Without dead ends: 1564 [2022-03-20 07:34:02,816 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 07:34:02,816 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 44 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:02,816 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 541 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:34:02,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-03-20 07:34:02,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1545. [2022-03-20 07:34:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4824675324675325) internal successors, (2283), 1540 states have internal predecessors, (2283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:02,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2287 transitions. [2022-03-20 07:34:02,827 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2287 transitions. Word has length 254 [2022-03-20 07:34:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:02,827 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2287 transitions. [2022-03-20 07:34:02,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2287 transitions. [2022-03-20 07:34:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-20 07:34:02,829 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:02,829 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:02,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 07:34:02,829 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:02,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1367824325, now seen corresponding path program 1 times [2022-03-20 07:34:02,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:02,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813949469] [2022-03-20 07:34:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:02,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-20 07:34:03,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:03,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813949469] [2022-03-20 07:34:03,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813949469] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:03,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:03,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:03,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533672139] [2022-03-20 07:34:03,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:03,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:03,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:03,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:03,005 INFO L87 Difference]: Start difference. First operand 1545 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:05,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:05,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:05,348 INFO L93 Difference]: Finished difference Result 1557 states and 2298 transitions. [2022-03-20 07:34:05,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:05,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-03-20 07:34:05,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:05,350 INFO L225 Difference]: With dead ends: 1557 [2022-03-20 07:34:05,350 INFO L226 Difference]: Without dead ends: 1557 [2022-03-20 07:34:05,351 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:05,351 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 40 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:05,351 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 535 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:34:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2022-03-20 07:34:05,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1545. [2022-03-20 07:34:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4811688311688311) internal successors, (2281), 1540 states have internal predecessors, (2281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2285 transitions. [2022-03-20 07:34:05,363 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2285 transitions. Word has length 255 [2022-03-20 07:34:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:05,364 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2285 transitions. [2022-03-20 07:34:05,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:05,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2285 transitions. [2022-03-20 07:34:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 07:34:05,366 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:05,367 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:05,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 07:34:05,367 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:05,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1074570741, now seen corresponding path program 1 times [2022-03-20 07:34:05,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:05,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113083990] [2022-03-20 07:34:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:05,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 07:34:05,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:05,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113083990] [2022-03-20 07:34:05,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113083990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:05,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:05,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:05,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79126981] [2022-03-20 07:34:05,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:05,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:05,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:05,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:05,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:05,498 INFO L87 Difference]: Start difference. First operand 1545 states and 2285 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:07,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:07,999 INFO L93 Difference]: Finished difference Result 1813 states and 2657 transitions. [2022-03-20 07:34:07,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:07,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-20 07:34:08,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:08,002 INFO L225 Difference]: With dead ends: 1813 [2022-03-20 07:34:08,002 INFO L226 Difference]: Without dead ends: 1813 [2022-03-20 07:34:08,002 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 07:34:08,002 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 64 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:08,002 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 622 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 597 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:34:08,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-03-20 07:34:08,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1670. [2022-03-20 07:34:08,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1665 states have (on average 1.4828828828828828) internal successors, (2469), 1665 states have internal predecessors, (2469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:08,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2473 transitions. [2022-03-20 07:34:08,019 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2473 transitions. Word has length 257 [2022-03-20 07:34:08,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:08,020 INFO L478 AbstractCegarLoop]: Abstraction has 1670 states and 2473 transitions. [2022-03-20 07:34:08,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2473 transitions. [2022-03-20 07:34:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 07:34:08,023 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:08,023 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:08,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 07:34:08,023 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2011154316, now seen corresponding path program 1 times [2022-03-20 07:34:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:08,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073104578] [2022-03-20 07:34:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:08,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-03-20 07:34:08,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:08,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073104578] [2022-03-20 07:34:08,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073104578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:08,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:08,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:34:08,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500435016] [2022-03-20 07:34:08,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:08,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:34:08,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:34:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:34:08,206 INFO L87 Difference]: Start difference. First operand 1670 states and 2473 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:10,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:12,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:14,029 WARN L534 Checker$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 07:34:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:14,431 INFO L93 Difference]: Finished difference Result 2187 states and 3236 transitions. [2022-03-20 07:34:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:34:14,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-20 07:34:14,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:14,434 INFO L225 Difference]: With dead ends: 2187 [2022-03-20 07:34:14,434 INFO L226 Difference]: Without dead ends: 2187 [2022-03-20 07:34:14,434 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 07:34:14,434 INFO L913 BasicCegarLoop]: 376 mSDtfsCounter, 128 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:14,434 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 571 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-20 07:34:14,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-03-20 07:34:14,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2187. [2022-03-20 07:34:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2182 states have (on average 1.4812098991750688) internal successors, (3232), 2182 states have internal predecessors, (3232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3236 transitions. [2022-03-20 07:34:14,451 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3236 transitions. Word has length 257 [2022-03-20 07:34:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:14,452 INFO L478 AbstractCegarLoop]: Abstraction has 2187 states and 3236 transitions. [2022-03-20 07:34:14,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3236 transitions. [2022-03-20 07:34:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 07:34:14,455 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:14,456 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:14,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 07:34:14,456 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:14,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:14,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2076861001, now seen corresponding path program 1 times [2022-03-20 07:34:14,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:14,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234657770] [2022-03-20 07:34:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:14,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-20 07:34:14,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:14,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234657770] [2022-03-20 07:34:14,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234657770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:14,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:14,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 07:34:14,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853284595] [2022-03-20 07:34:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:14,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 07:34:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:14,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 07:34:14,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:34:14,846 INFO L87 Difference]: Start difference. First operand 2187 states and 3236 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:16,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:18,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:18,176 INFO L93 Difference]: Finished difference Result 4189 states and 6238 transitions. [2022-03-20 07:34:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 07:34:18,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-03-20 07:34:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:18,184 INFO L225 Difference]: With dead ends: 4189 [2022-03-20 07:34:18,184 INFO L226 Difference]: Without dead ends: 4189 [2022-03-20 07:34:18,184 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-20 07:34:18,185 INFO L913 BasicCegarLoop]: 331 mSDtfsCounter, 203 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:18,185 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1300 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1480 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:34:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4189 states. [2022-03-20 07:34:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4189 to 3938. [2022-03-20 07:34:18,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3933 states have (on average 1.5026697177726926) internal successors, (5910), 3933 states have internal predecessors, (5910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:18,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5914 transitions. [2022-03-20 07:34:18,232 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5914 transitions. Word has length 330 [2022-03-20 07:34:18,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:18,233 INFO L478 AbstractCegarLoop]: Abstraction has 3938 states and 5914 transitions. [2022-03-20 07:34:18,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5914 transitions. [2022-03-20 07:34:18,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 07:34:18,240 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:18,240 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:18,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 07:34:18,241 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:18,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:18,242 INFO L85 PathProgramCache]: Analyzing trace with hash 674782559, now seen corresponding path program 1 times [2022-03-20 07:34:18,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:18,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924894295] [2022-03-20 07:34:18,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:18,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-20 07:34:18,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:18,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924894295] [2022-03-20 07:34:18,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924894295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:18,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:18,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 07:34:18,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40726323] [2022-03-20 07:34:18,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:18,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 07:34:18,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:18,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 07:34:18,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:34:18,516 INFO L87 Difference]: Start difference. First operand 3938 states and 5914 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:20,524 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 07:34:21,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:21,712 INFO L93 Difference]: Finished difference Result 6068 states and 8920 transitions. [2022-03-20 07:34:21,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 07:34:21,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-03-20 07:34:21,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:21,719 INFO L225 Difference]: With dead ends: 6068 [2022-03-20 07:34:21,719 INFO L226 Difference]: Without dead ends: 6068 [2022-03-20 07:34:21,719 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-20 07:34:21,719 INFO L913 BasicCegarLoop]: 304 mSDtfsCounter, 503 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 76 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:21,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 1090 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1304 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 07:34:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2022-03-20 07:34:21,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3980. [2022-03-20 07:34:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3975 states have (on average 1.5006289308176102) internal successors, (5965), 3975 states have internal predecessors, (5965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5969 transitions. [2022-03-20 07:34:21,812 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5969 transitions. Word has length 331 [2022-03-20 07:34:21,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:21,812 INFO L478 AbstractCegarLoop]: Abstraction has 3980 states and 5969 transitions. [2022-03-20 07:34:21,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5969 transitions. [2022-03-20 07:34:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 07:34:21,819 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:21,820 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:21,820 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 07:34:21,820 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:21,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash 2119834520, now seen corresponding path program 1 times [2022-03-20 07:34:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:21,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131502342] [2022-03-20 07:34:21,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:21,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:22,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-20 07:34:22,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:22,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131502342] [2022-03-20 07:34:22,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131502342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:22,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:22,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:22,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444669656] [2022-03-20 07:34:22,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:22,021 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:22,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:22,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:22,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:22,021 INFO L87 Difference]: Start difference. First operand 3980 states and 5969 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:24,039 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 07:34:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:24,550 INFO L93 Difference]: Finished difference Result 4282 states and 6355 transitions. [2022-03-20 07:34:24,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:24,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-03-20 07:34:24,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:24,564 INFO L225 Difference]: With dead ends: 4282 [2022-03-20 07:34:24,564 INFO L226 Difference]: Without dead ends: 4266 [2022-03-20 07:34:24,564 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 07:34:24,565 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 58 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:24,565 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 612 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 578 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:34:24,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-03-20 07:34:24,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3968. [2022-03-20 07:34:24,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.5001261670451678) internal successors, (5945), 3963 states have internal predecessors, (5945), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5949 transitions. [2022-03-20 07:34:24,634 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5949 transitions. Word has length 331 [2022-03-20 07:34:24,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:24,634 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5949 transitions. [2022-03-20 07:34:24,634 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5949 transitions. [2022-03-20 07:34:24,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-03-20 07:34:24,641 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:24,641 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:24,641 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 07:34:24,641 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:24,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:24,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1801634778, now seen corresponding path program 1 times [2022-03-20 07:34:24,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:24,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071710810] [2022-03-20 07:34:24,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:24,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 708 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-20 07:34:24,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:24,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071710810] [2022-03-20 07:34:24,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071710810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:24,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:24,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:24,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524678491] [2022-03-20 07:34:24,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:24,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:24,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:24,906 INFO L87 Difference]: Start difference. First operand 3968 states and 5949 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:26,913 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 07:34:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:27,350 INFO L93 Difference]: Finished difference Result 4250 states and 6311 transitions. [2022-03-20 07:34:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:27,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 347 [2022-03-20 07:34:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:27,355 INFO L225 Difference]: With dead ends: 4250 [2022-03-20 07:34:27,355 INFO L226 Difference]: Without dead ends: 4250 [2022-03-20 07:34:27,355 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 07:34:27,355 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 62 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:27,355 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 608 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 560 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:27,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2022-03-20 07:34:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3968. [2022-03-20 07:34:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.498107494322483) internal successors, (5937), 3963 states have internal predecessors, (5937), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:27,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5941 transitions. [2022-03-20 07:34:27,402 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5941 transitions. Word has length 347 [2022-03-20 07:34:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:27,402 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5941 transitions. [2022-03-20 07:34:27,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:27,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5941 transitions. [2022-03-20 07:34:27,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-20 07:34:27,407 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:27,407 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:27,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 07:34:27,407 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:27,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:27,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1466071603, now seen corresponding path program 1 times [2022-03-20 07:34:27,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:27,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414490556] [2022-03-20 07:34:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:27,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:27,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-20 07:34:27,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:27,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414490556] [2022-03-20 07:34:27,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414490556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:27,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:27,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:27,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564853352] [2022-03-20 07:34:27,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:27,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:27,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:27,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:27,582 INFO L87 Difference]: Start difference. First operand 3968 states and 5941 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:29,589 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 07:34:29,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:29,944 INFO L93 Difference]: Finished difference Result 4210 states and 6251 transitions. [2022-03-20 07:34:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:29,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 348 [2022-03-20 07:34:29,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:29,949 INFO L225 Difference]: With dead ends: 4210 [2022-03-20 07:34:29,950 INFO L226 Difference]: Without dead ends: 4210 [2022-03-20 07:34:29,950 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 07:34:29,950 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 71 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:29,950 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 594 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:34:29,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-03-20 07:34:30,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3968. [2022-03-20 07:34:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.496088821599798) internal successors, (5929), 3963 states have internal predecessors, (5929), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5933 transitions. [2022-03-20 07:34:30,021 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5933 transitions. Word has length 348 [2022-03-20 07:34:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:30,021 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5933 transitions. [2022-03-20 07:34:30,021 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5933 transitions. [2022-03-20 07:34:30,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-20 07:34:30,026 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:30,026 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:30,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 07:34:30,026 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:30,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:30,027 INFO L85 PathProgramCache]: Analyzing trace with hash -951999064, now seen corresponding path program 1 times [2022-03-20 07:34:30,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:30,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066311091] [2022-03-20 07:34:30,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:30,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:30,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-20 07:34:30,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:30,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066311091] [2022-03-20 07:34:30,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066311091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:30,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:30,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:34:30,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210837821] [2022-03-20 07:34:30,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:30,400 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:34:30,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:30,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:34:30,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:30,400 INFO L87 Difference]: Start difference. First operand 3968 states and 5933 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:32,419 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 07:34:32,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:32,836 INFO L93 Difference]: Finished difference Result 4446 states and 6561 transitions. [2022-03-20 07:34:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:32,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have 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 07:34:32,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:32,841 INFO L225 Difference]: With dead ends: 4446 [2022-03-20 07:34:32,841 INFO L226 Difference]: Without dead ends: 4446 [2022-03-20 07:34:32,841 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:34:32,859 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 253 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:32,859 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 330 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-03-20 07:34:32,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3910. [2022-03-20 07:34:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4960307298335467) internal successors, (5842), 3905 states have internal predecessors, (5842), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5846 transitions. [2022-03-20 07:34:32,908 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5846 transitions. Word has length 349 [2022-03-20 07:34:32,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:32,908 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5846 transitions. [2022-03-20 07:34:32,908 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5846 transitions. [2022-03-20 07:34:32,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-20 07:34:32,914 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:32,914 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:32,914 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 07:34:32,914 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:32,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:32,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2110568493, now seen corresponding path program 1 times [2022-03-20 07:34:32,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:32,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546390089] [2022-03-20 07:34:32,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:32,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-20 07:34:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:33,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546390089] [2022-03-20 07:34:33,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546390089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:33,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:33,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:33,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076424855] [2022-03-20 07:34:33,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:33,066 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:33,067 INFO L87 Difference]: Start difference. First operand 3910 states and 5846 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:35,083 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 07:34:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:35,539 INFO L93 Difference]: Finished difference Result 4152 states and 6156 transitions. [2022-03-20 07:34:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:35,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 349 [2022-03-20 07:34:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:35,546 INFO L225 Difference]: With dead ends: 4152 [2022-03-20 07:34:35,546 INFO L226 Difference]: Without dead ends: 4152 [2022-03-20 07:34:35,546 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 07:34:35,546 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 56 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:35,546 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 592 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:34:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2022-03-20 07:34:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3910. [2022-03-20 07:34:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4939820742637644) internal successors, (5834), 3905 states have internal predecessors, (5834), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5838 transitions. [2022-03-20 07:34:35,581 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5838 transitions. Word has length 349 [2022-03-20 07:34:35,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:35,582 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5838 transitions. [2022-03-20 07:34:35,582 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5838 transitions. [2022-03-20 07:34:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-03-20 07:34:35,587 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:35,587 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:35,587 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 07:34:35,587 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:35,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:35,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1878023735, now seen corresponding path program 1 times [2022-03-20 07:34:35,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:35,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434715273] [2022-03-20 07:34:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:35,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-20 07:34:35,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434715273] [2022-03-20 07:34:35,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434715273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:35,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:35,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:35,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116636163] [2022-03-20 07:34:35,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:35,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:35,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:35,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:35,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:35,770 INFO L87 Difference]: Start difference. First operand 3910 states and 5838 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 07:34:37,779 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 07:34:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:38,159 INFO L93 Difference]: Finished difference Result 4088 states and 6044 transitions. [2022-03-20 07:34:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:38,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 350 [2022-03-20 07:34:38,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:38,177 INFO L225 Difference]: With dead ends: 4088 [2022-03-20 07:34:38,177 INFO L226 Difference]: Without dead ends: 4088 [2022-03-20 07:34:38,177 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 07:34:38,177 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 45 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:38,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 582 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-03-20 07:34:38,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3910. [2022-03-20 07:34:38,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.491933418693982) internal successors, (5826), 3905 states have internal predecessors, (5826), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5830 transitions. [2022-03-20 07:34:38,233 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5830 transitions. Word has length 350 [2022-03-20 07:34:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:38,233 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5830 transitions. [2022-03-20 07:34:38,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 07:34:38,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5830 transitions. [2022-03-20 07:34:38,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-03-20 07:34:38,238 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:38,238 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:38,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 07:34:38,238 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:38,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:38,238 INFO L85 PathProgramCache]: Analyzing trace with hash 512398985, now seen corresponding path program 1 times [2022-03-20 07:34:38,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:38,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944477956] [2022-03-20 07:34:38,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:38,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:38,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 710 proven. 82 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-03-20 07:34:38,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:38,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944477956] [2022-03-20 07:34:38,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944477956] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:34:38,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741580553] [2022-03-20 07:34:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:38,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:34:38,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:34:38,460 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 07:34:38,461 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 07:34:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:39,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 07:34:39,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:34:39,946 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:34:39,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:34:40,013 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:34:40,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:34:40,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 07:34:40,199 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:34:40,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:34:40,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:34:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 682 proven. 126 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-20 07:34:40,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:34:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-03-20 07:34:40,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741580553] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:34:40,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:34:40,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-03-20 07:34:40,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615739570] [2022-03-20 07:34:40,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:40,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:34:40,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:40,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:34:40,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-03-20 07:34:40,744 INFO L87 Difference]: Start difference. First operand 3910 states and 5830 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:42,750 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 07:34:43,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:43,023 INFO L93 Difference]: Finished difference Result 4716 states and 6951 transitions. [2022-03-20 07:34:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:34:43,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 352 [2022-03-20 07:34:43,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:43,028 INFO L225 Difference]: With dead ends: 4716 [2022-03-20 07:34:43,028 INFO L226 Difference]: Without dead ends: 4716 [2022-03-20 07:34:43,028 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-20 07:34:43,034 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 108 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:43,034 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 535 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:34:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2022-03-20 07:34:43,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4234. [2022-03-20 07:34:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.4913691179947979) internal successors, (6307), 4229 states have internal predecessors, (6307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:43,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6311 transitions. [2022-03-20 07:34:43,079 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6311 transitions. Word has length 352 [2022-03-20 07:34:43,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:43,079 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6311 transitions. [2022-03-20 07:34:43,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:43,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6311 transitions. [2022-03-20 07:34:43,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-20 07:34:43,084 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:43,085 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:43,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 07:34:43,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-20 07:34:43,305 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:43,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:43,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1647130387, now seen corresponding path program 1 times [2022-03-20 07:34:43,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:43,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451855970] [2022-03-20 07:34:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:43,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-20 07:34:43,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:43,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451855970] [2022-03-20 07:34:43,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451855970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:43,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:43,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:43,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031458094] [2022-03-20 07:34:43,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:43,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:43,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:43,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:43,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:43,541 INFO L87 Difference]: Start difference. First operand 4234 states and 6311 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:45,549 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 07:34:45,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:45,924 INFO L93 Difference]: Finished difference Result 4380 states and 6475 transitions. [2022-03-20 07:34:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:45,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 353 [2022-03-20 07:34:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:45,928 INFO L225 Difference]: With dead ends: 4380 [2022-03-20 07:34:45,928 INFO L226 Difference]: Without dead ends: 4380 [2022-03-20 07:34:45,928 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 07:34:45,929 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 46 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:45,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 574 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:45,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-03-20 07:34:45,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4234. [2022-03-20 07:34:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.489477417829274) internal successors, (6299), 4229 states have internal predecessors, (6299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:45,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6303 transitions. [2022-03-20 07:34:45,988 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6303 transitions. Word has length 353 [2022-03-20 07:34:45,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:45,989 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6303 transitions. [2022-03-20 07:34:45,989 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:45,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6303 transitions. [2022-03-20 07:34:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-20 07:34:45,993 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:45,994 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:45,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 07:34:45,994 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:45,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:45,994 INFO L85 PathProgramCache]: Analyzing trace with hash -947640423, now seen corresponding path program 1 times [2022-03-20 07:34:45,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:45,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054363580] [2022-03-20 07:34:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:45,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-03-20 07:34:46,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:46,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054363580] [2022-03-20 07:34:46,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054363580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:46,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:46,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:46,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980290487] [2022-03-20 07:34:46,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:46,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:46,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:46,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:46,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:46,211 INFO L87 Difference]: Start difference. First operand 4234 states and 6303 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 07:34:47,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:49,582 WARN L534 Checker$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 07:34:51,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:53,634 WARN L534 Checker$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 07:34:54,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:54,005 INFO L93 Difference]: Finished difference Result 4596 states and 6801 transitions. [2022-03-20 07:34:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:54,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 353 [2022-03-20 07:34:54,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:54,009 INFO L225 Difference]: With dead ends: 4596 [2022-03-20 07:34:54,009 INFO L226 Difference]: Without dead ends: 4596 [2022-03-20 07:34:54,009 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 07:34:54,025 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:54,025 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 578 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 464 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-20 07:34:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-03-20 07:34:54,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4442. [2022-03-20 07:34:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4442 states, 4437 states have (on average 1.4881676808654496) internal successors, (6603), 4437 states have internal predecessors, (6603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:54,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 6607 transitions. [2022-03-20 07:34:54,053 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 6607 transitions. Word has length 353 [2022-03-20 07:34:54,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:54,053 INFO L478 AbstractCegarLoop]: Abstraction has 4442 states and 6607 transitions. [2022-03-20 07:34:54,053 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 07:34:54,053 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 6607 transitions. [2022-03-20 07:34:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-03-20 07:34:54,057 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:54,057 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:54,057 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 07:34:54,058 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:54,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:54,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1606404644, now seen corresponding path program 1 times [2022-03-20 07:34:54,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:54,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752115763] [2022-03-20 07:34:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:54,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:54,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-03-20 07:34:54,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:54,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752115763] [2022-03-20 07:34:54,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752115763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:54,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:54,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:54,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367561675] [2022-03-20 07:34:54,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:54,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:54,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:54,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:54,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:54,225 INFO L87 Difference]: Start difference. First operand 4442 states and 6607 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:56,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:58,123 WARN L534 Checker$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 07:35:00,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:02,170 WARN L534 Checker$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 07:35:02,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:02,619 INFO L93 Difference]: Finished difference Result 4884 states and 7241 transitions. [2022-03-20 07:35:02,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:02,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 359 [2022-03-20 07:35:02,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:02,624 INFO L225 Difference]: With dead ends: 4884 [2022-03-20 07:35:02,624 INFO L226 Difference]: Without dead ends: 4884 [2022-03-20 07:35:02,624 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 07:35:02,626 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 46 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:02,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 590 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 508 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-20 07:35:02,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2022-03-20 07:35:02,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4666. [2022-03-20 07:35:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.488736322677537) internal successors, (6939), 4661 states have internal predecessors, (6939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6943 transitions. [2022-03-20 07:35:02,671 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6943 transitions. Word has length 359 [2022-03-20 07:35:02,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:02,672 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6943 transitions. [2022-03-20 07:35:02,672 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6943 transitions. [2022-03-20 07:35:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-20 07:35:02,677 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:02,677 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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 07:35:02,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-20 07:35:02,678 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:02,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1596942315, now seen corresponding path program 1 times [2022-03-20 07:35:02,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:02,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251113335] [2022-03-20 07:35:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:02,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:03,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:03,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-03-20 07:35:03,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:03,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251113335] [2022-03-20 07:35:03,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251113335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:03,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:03,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 07:35:03,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343706775] [2022-03-20 07:35:03,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:03,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:35:03,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:03,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:35:03,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:35:03,036 INFO L87 Difference]: Start difference. First operand 4666 states and 6943 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 07:35:05,044 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 07:35:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:05,454 INFO L93 Difference]: Finished difference Result 4674 states and 6953 transitions. [2022-03-20 07:35:05,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:35:05,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 360 [2022-03-20 07:35:05,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:05,458 INFO L225 Difference]: With dead ends: 4674 [2022-03-20 07:35:05,459 INFO L226 Difference]: Without dead ends: 4666 [2022-03-20 07:35:05,464 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 07:35:05,464 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:05,464 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:35:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2022-03-20 07:35:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4666. [2022-03-20 07:35:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.4885217764428234) internal successors, (6938), 4661 states have internal predecessors, (6938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:05,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6942 transitions. [2022-03-20 07:35:05,523 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6942 transitions. Word has length 360 [2022-03-20 07:35:05,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:05,523 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6942 transitions. [2022-03-20 07:35:05,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 07:35:05,523 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6942 transitions. [2022-03-20 07:35:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-20 07:35:05,528 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:05,528 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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 07:35:05,528 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-20 07:35:05,528 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:05,529 INFO L85 PathProgramCache]: Analyzing trace with hash -870525942, now seen corresponding path program 1 times [2022-03-20 07:35:05,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:05,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39006395] [2022-03-20 07:35:05,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:05,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 576 proven. 92 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-03-20 07:35:06,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:06,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39006395] [2022-03-20 07:35:06,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39006395] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:35:06,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431385489] [2022-03-20 07:35:06,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:06,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:35:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:35:06,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:35:06,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 07:35:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:07,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 131 conjunts are in the unsatisfiable core [2022-03-20 07:35:07,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:35:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:07,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:35:07,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:07,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:07,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:07,911 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 07:35:07,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 07:35:07,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:07,946 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 07:35:07,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-03-20 07:35:07,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 07:35:07,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 07:35:08,140 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 07:35:08,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-20 07:35:08,157 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-20 07:35:08,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-20 07:35:08,176 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-20 07:35:08,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2022-03-20 07:35:08,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-20 07:35:08,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-20 07:35:08,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-20 07:35:08,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-20 07:35:08,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-20 07:35:08,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-20 07:35:08,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,897 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 07:35:08,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-03-20 07:35:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,937 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 07:35:08,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-03-20 07:35:08,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:08,975 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-20 07:35:08,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-03-20 07:35:09,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-03-20 07:35:09,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-03-20 07:35:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:09,231 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-20 07:35:09,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 213 treesize of output 231 [2022-03-20 07:35:11,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 226 [2022-03-20 07:35:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,528 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-03-20 07:35:11,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 262 treesize of output 260 [2022-03-20 07:35:11,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:11,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 230 [2022-03-20 07:35:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:13,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,015 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-03-20 07:35:14,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 247 treesize of output 259 [2022-03-20 07:35:14,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-03-20 07:35:14,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-03-20 07:35:14,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-03-20 07:35:14,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:14,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-03-20 07:35:15,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 127 [2022-03-20 07:35:15,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,467 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-03-20 07:35:15,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 104 [2022-03-20 07:35:15,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 108 [2022-03-20 07:35:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:15,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 110 [2022-03-20 07:35:17,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-03-20 07:35:17,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-03-20 07:35:17,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,146 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-03-20 07:35:17,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 195 treesize of output 162 [2022-03-20 07:35:17,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-03-20 07:35:17,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,180 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-03-20 07:35:17,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 187 treesize of output 166 [2022-03-20 07:35:17,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 159 [2022-03-20 07:35:17,368 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-20 07:35:17,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 07:35:17,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:17,384 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 07:35:17,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 159 [2022-03-20 07:35:19,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:19,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:19,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:19,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 174 [2022-03-20 07:35:19,196 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-20 07:35:19,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 37 [2022-03-20 07:35:19,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:19,203 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 07:35:19,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 153 [2022-03-20 07:35:19,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:35:19,704 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 07:35:19,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 82 [2022-03-20 07:35:34,140 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-03-20 07:35:34,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2022-03-20 07:35:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 221 proven. 883 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-20 07:35:34,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:35:34,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 596 treesize of output 522